ПОРОШКООБРАЗНЫЙ МАТЕРИАЛ ДЛЯ ИСТИРАЕМЫХ ПОКРЫТИЙ И ИСТИРАЕМОЕ ПОКРЫТИЕ

Изобретение относится к области порошкообразных материалов, предназначенных для изготовления истираемых герметичных уплотнений, и может быть использовано в турбомашинах. Порошкообразный материал выполнен из сплава на основе алюминия, содержащего марганец или кальций в количестве от 5 мас.% до 20 мас.%. Из порошкообразного материала выполнено истираемое покрытие. Получен материал для образования истираемого покрытия для уплотнений, сохраняющий удовлетворительное состояние при температурах до 550°С. 2 н. и 12 з.п. ф-лы, 5 табл.

СПОСОБ ИЗГОТОВЛЕНИЯ ДЕТАЛЕЙ МАШИН, СНАБЖЕННЫХ ПО МЕНЬШЕЙ МЕРЕ ОДНОЙ ПОВЕРХНОСТЬЮ СКОЛЬЖЕНИЯ

Изобретение относится к способу изготовления деталей машин типа поршневых колец и/или поршней и/или гильз цилиндров двигателей, предпочтительно двухтактных дизельных двигателей с большим рабочим объемом, имеющих, по меньшей мере, одну поверхность скольжения, которые в зоне своей поверхности скольжения снабжены нанесенным на основной материал с помощью способа термонапыления покрытием. Покрытие образуют за счет агрегации алюминиевой бронзы и, по меньшей мере, одного другого, не легированного ею материала. Покрытие содержит более твердые по сравнению с другими материалами покрытия включения, которые напыляют в виде нерасплавленного в процессе напыления порошка вместе с остальными, расплавленными для напыления материалами покрытия. Для образования струи напыления расплавляют, по меньшей мере, одну выполненную в виде полой проволоки проволоку, полое пространство которой содержит порошок карбидов и/или оксидов, образующий не плавящиеся в процессе напыления включения. Создаваемая для напыления ...

СЛОИСТАЯ СИСТЕМА ПОКРЫТИЯ СО СЛОЕМ MCRALX И СЛОЕМ, БОГАТЫМ ПО ХРОМУ, И СПОСОБ ЕЕ ПОЛУЧЕНИЯ

Изобретение относится к слоистой системе со слоем MCrX и слоем, обогащенным хромом. Слоистая система (1) содержит подложку (4) и многослойное покрытие, при этом многослойное покрытие содержит один слой MCrX (7, 7′) в качестве самого нижнего слоя (7, 7′) на подложке (4), в котором Х является, по меньшей мере, иттрием (Y) и/или кремнием (Si), и/или алюминием (Al), и/или бором (B), в котором М является никелем (Ni) и/или кобальтом (Co), обогащенный хромом слой (10) на или в по меньшей мере одном слое MCrX (7, 16) и первый внешний MCrX″ слой (13), который находится на обогащенном хромом слое (10), где X″ является, по меньшей мере, Y, Si и/или B, причем указанный нижний слой MCrX (7) присутствует на подложке (4) и под обогащенным хромом слоем (10). При изготовлении слоистой системы (1), по меньшей мере один слой MCrX (7, 7′, 16), наносят, в частности, методом высокоскоростного газопламенного напыления (HVOF). Обеспечивается стойкая к окислению и высокотемпературной коррозии слоистая система.

РЕАГИРУЮЩИЙ С ВОДОЙ AL КОМПОЗИТНЫЙ МАТЕРИАЛ, РЕАГИРУЮЩАЯ С ВОДОЙ AL ПЛЕНКА, СПОСОБ ПОЛУЧЕНИЯ ДАННОЙ AL ПЛЕНКИ И СОСТАВЛЯЮЩИЙ ЭЛЕМЕНТ КАМЕРЫ ДЛЯ ОБРАЗОВАНИЯ ПЛЕНКИ

Изобретение относится к реагирующему с водой Al композитному материалу, к реагирующей с водой Al пленке, к способу получения данной Al пленки и составляющему элементу из реагирующей с водой Al пленки на основе пленкообразующей камеры для получения пленки из драгоценных или редких металлов. Реагирующий с водой Al композитный материал для получения пленки на основе содержит исходный Al материал чистотой 4N или 5N и добавленный в него In в количестве в диапазоне от 2 до 5 мас.% в расчете на массу Al, где In равномерно диспергирован в кристаллических Al зернах. Для получения реагирующей с водой Al пленки из упомянутого композитного материала осуществляют расплавление композитного материала, термическое напыление этого материала на поверхность основы и отверждение напыленного расплавленного материала путем закаливания с получением пленки. Реагирующая с водой Al пленка состоит из реагирующего с водой Al композитного материала или получена использованием вышеуказанных операций. Полученная пленка ...

ЭЛЕКТРОДНЫЙ СТЕРЖЕНЬ ДЛЯ ИСКРОВОЙ НАПЛАВКИ, СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ И СПОСОБ НАНЕСЕНИЯ ПОКРЫТИЯ, СОДЕРЖАЩЕГО СУПЕРАБРАЗИВ

Изобретение относится к получению покрытия электроискровым легированием. Электродный стержень выполнен из однородно смешанных и спрессованных порошков первого компонента, включающего, по меньшей мере, один металл из группы Fe, Co, Ni, металлы группы 4а, 5а, 6а Периодической системы элементов и Si, и второго компонента, обеспечивающего осуществление самораспространяющегося высокотемпературного синтеза (СВС) в процессе электроискрового легирования для получения вместе с указанным первым компонентом карбида, нитрида, борида, силицида или интерметаллического соединения. Стержень может содержать нейтральный в отношении процесса СВС твердый материал, например, алмаз. Искровой разряд между электродным стержнем и подложкой вызывает перенос компонентов на поверхность подложки. Полученное покрытие имеет, по меньшей мере, один слой, содержащий указанное соединение. Процесс обеспечивает экономию энергии электрического разряда за счет тепла реакции СВС. 4 с. и 36 з.п.ф-лы, 2 ил., 7 табл.

ОБРАБОТКА ПОВЕРХНОСТИ АМОРФНЫХ ПОКРЫТИЙ

Изобретение относится к элементу конструкции нефтехимического оборудования, работающему при температуре 230-990С и способу обработки поверхности этого элемента. Указанный элемент содержит исходную подложку из черного или цветного металла, или стали, диффузионный слой и слой аморфного металла. Диффузионный слой расположен на исходной подложке и имеет первую поверхность, контактирующую с упомянутой исходной подложкой, и вторую поверхность, противоположную первой поверхности. Диффузионный слой имеет отрицательный профиль градиента твердости, увеличивающейся от второй поверхности к первой поверхности, и сформирован путем обработки слоя аморфного металла, нанесенного на исходную подложку, достаточным количеством энергии для сплавления вместе по меньшей мере части слоя аморфного покрытия и, по меньшей мере, части исходной подложки. Указанный способ содержит стадии, на которых формируют упомянутые слои. Обеспечивается улучшение коррозионной стойкости, износостойкости, эрозионной стойкости, стойкости ...

ЭЛЕМЕНТ СКОЛЬЖЕНИЯ С ПОКРЫТИЕМ ТЕРМИЧЕСКОГО НАПЫЛЕНИЯ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Изобретение относится к области металлургии, а именно к элементу скольжения двигателя внутреннего сгорания. Элемент скольжения двигателя внутреннего сгорания включает основу и покрытие, полученное посредством термического напыления порошка, содержащего, мас.%: от 55 до 75 Cr, от 3 до 10 Si, от 18 до 35 Ni, от 0,1 до 2 Мо, от 0,1 до 3 C, от 0,5 до 2 B и от 0 до 3 Fe. Повышаются трибологические свойства поршневых колец. 2 н. и 13 з.п. ф-лы, 1 ил., 1 табл.

СПОСОБ ЭЛЕКТРОВЗРЫВНОГО НАПЫЛЕНИЯ БИОИНЕРТНЫХ ПОКРЫТИЙ НА ОСНОВЕ МОЛИБДЕНА И НИОБИЯ НА ИМПЛАНТАТЫ ИЗ ТИТАНОВЫХ СПЛАВОВ

Изобретение относится к способу электровзрывного напыления биоинертных покрытий на основе молибдена и ниобия на имплантаты из титановых сплавов и может быть использовано в медицинской технике, в травматологии и ортопедии. Осуществляют электрический взрыв двухслойного композиционного электрически взрываемого проводника, один из слоев которого состоит из молибденовой фольги массой 50-500 мг, а второй слой - из ниобиевой фольги с массой, равной 0,5-2,0 массы первого слоя. Формируют из продуктов взрыва импульсную многофазную плазменную струю. Оплавляют поверхности имплантата из титанового сплава при поглощаемой плотности мощности 1,5-1,8 ГВт/м2. Осуществляют осаждение на поверхность продуктов взрыва и формирование на ней биоинертного покрытия на основе молибдена и ниобия. В результате формируется поверхностный слой с высокой адгезией покрытия с подложкой из титанового сплава, низкой шероховатостью и гомогенизированной структурой, обладающий антибактериальным эффектом, что увеличивает срок службы ...

СПОСОБ ИЗГОТОВЛЕНИЯ КАТАЛИЗАТОРА И КАТАЛИЗАТОР

Изобретение относится к области производства катализаторов для избирательного восстановления окислов азота. Предложен способ изготовления катализатора на носителе посредством одновременного раздельного термического напыления гидроксида алюминия и металлического алюминия. При этом гидроксид алюминия термически преобразуют в оксид алюминия. Дополнительно отдельно от металлического алюминия одновременно на носитель термически напыляют алюминийкремниевое соединение и подводят металлическую активную компоненту. Предложен катализатор для избирательного восстановления окислов азота с активной массой, изготовленный по способу, описанному выше. Катализатор применяют для избирательного разложения оксидов азота в области температур свыше 400oС. Технический результат: катализатор позволяет проводить разложение оксидов азота в области высоких температур. 2 c. и 17 з.п. ф-лы, 1 ил.

ПОРОШКОВЫЙ МАТЕРИАЛ ДЛЯ ГАЗОТЕРМИЧЕСКОГО НАПЫЛЕНИЯ

Изобретение относится к покрытиям, получаемым физико-металлургическими методами, а именно к составам для газотермического напыления, которые могут быть использованы для поверхностного упрочнения и восстановления изношенных деталей, узлов трения. Технической задачей изобретения является повышение абразивной износостойкости покрытий из самофлюсующихся порошков. Сущность изобретения заключается в том, что в самофлюсующийся порошок ПР H70XI7C4P4 добавляют в малом количестве ультрадисперсный порошок Co Al2O4 при следующем соотношении компонентов в порошковом материале, мас. шпинель Co Al2O4 0,1 0,5; ПР H70XI7C4P4 остальное. 1 табл.

СПЛАВ, СТОЙКИЙ К ВОЗДЕЙСТВИЮ РАСПЛАВЛЕННОГО ЦИНКА, ДЛЯ НАНЕСЕНИЯ ПОКРЫТИЯ, СПОСОБ ЕГО НАНЕСЕНИЯ НА ИЗДЕЛИЕ И ИЗДЕЛИЕ С ПОКРЫТИЕМ

Сплав, стойкий к воздействию расплавленного цинка, для нанесения покрытий, на основе молибдена, содержит 3 - 9 мас.% бора, причем бор может содержаться в виде борида молибдена MoB, или MoB2, или их смеси. Сплав наносится на поверхность изделия методом взрыва, газопламенного напыления или плазменным напылением. Изделие с покрытием может быть уплотнено неорганическим герметиком. В качестве герметика может использоваться стекло или коллоидная двуокись кремния. 3 с. и 6 з.п. ф-лы, 6 ил., 3 табл.

ПОРОШКОВЫЙ МАТЕРИАЛ ДЛЯ ГАЗОТЕРМИЧЕСКОГО НАПЫЛЕНИЯ

Изобретение относится к области покрытий, получаемых физико-металлургическими методами, а именно к составам для газотермического напыления, которые могут быть использованы для поверхностного упрочнения и восстановления изношенных деталей узлов трения. Технической задачей изобретения является повышение износостойкости в условиях сухого трения покрытий из самофлюсующихся порошков на основе никеля. Сущность изобретения заключается в том, что в самофлюсующийся порошок ПР-Н70Х17С4Р4 добавляют в малом количестве ультрадисперсный порошок CuAl2 O4 при следующем соотношении компонентов в порошковом материале, мас. шпинель CuAl2O4 0,02 0,2; ПР-Н70Х17С4Р4 остальное. 1 табл.

СПОСОБ ПОЛУЧЕНИЯ МНОГОСЛОЙНЫХ КОМПОЗИТНЫХ ПОКРЫТИЙ

Изобретение относится к области металловедения, химико-термической обработке металлических изделий, к созданию наноструктурированных износостойких материалов конструкционного назначения и может быть использовано для повышения долговечности деталей машин в промышленности. Способ высокоскоростного газопламенного напыления многослойного композитного покрытия из порошковых материалов на металлическое изделие включает нанесение нижнего слоя покрытия толщиной 20-100 мкм из механически активированного порошка Ni, среднего слоя - толщиной 50-500 мкм из механически активированного порошка с эффектом памяти формы на основе TiNi и верхнего слоя - толщиной 50-500 мкм из механически активированной смеси порошков из ВС, WC, (CrCили CSi), Со, Ni, С, при их соотношении вес.%: ВС 35-80, WC 7-40, (CrCили CSi) 7-30, Со 1-5, Ni 4-7, С 1-3. Затем проводят отжиг при температуре 600-800°С в течение 0,5-1 ч. После нанесения среднего слоя из сплава с эффектом памяти формы на основе TiNi осуществляют его поверхностное ...

Способ получения износостойкого покрытия

Изобретение относится к способам, обеспечивающим повышение износостойкости поверхностей металлических деталей за счет изменения состава и структуры их поверхностных слоев, и может быть использовано при изготовлении деталей, работающих в условиях гидроабразивного и кавитационного износа при температурах работы ниже 273 К. Способ получения износостойкого покрытия из высокоэнтропийных сплавов с эффектом памяти формы на детали из стали включает послойное нанесение порошкового материала высокоскоростным газопламенным напылением в защитной атмосфере аргона, причем нанесение первого адгезионного слоя из механически активированного порошка Ni проводят толщиной 50-100 мкм, нанесение второго переходного слоя из смеси порошков FeNi-TiNi, взятых в равном соотношении, проводят толщиной 100-150 мкм, а нанесение третьего слоя осуществляют из высокоэнтропийного сплава с эффектом памяти формы FeNiCoAlXB толщиной 750-850 мкм, где примесный компонент X представляет собой Ti, Та, Nb, Cr или W, при следующем ...

ГРАФИТИРОВАННЫЙ ЭЛЕКТРОД С ЗАЩИТНЫМ ПОКРЫТИЕМ

Изобретение относится к производству графитированных электродов с защитным покрытием, в частности, для электродуговых и восстановительных печей. Графитированный электрод с защитным покрытием содержит графитированную основу, на которую нанесено защитное двухслойное плазменное полученное покрытие, первый слой которого выполнен из алюминия или его сплава, а второй - из электропроводного материала. Второй слой покрытия выполнен из меди, толщина покрытия составляет 0,2-1,5 мм, причем покрытие получают плазменным распылением проволоки. Первый слой защитного покрытия выполнен из алюминиевого сплава, который содержит 5-10% кремния. Технический результат - снижение напряжения в элементах конструкции электрода, повышение прочности сцепления покрытия с основой и за счет этого повышение качества графитированных электродов при существенном снижении затрат на их производство. 1 з.п. ф-лы, 1 табл.

СПОСОБ НАНЕСЕНИЯ ПОКРЫТИЙ

Изобретение относится к области машиностроения, а именно к электродуговым способам нанесения покрытий на поверхности изделий с использованием металлических проволок, в частности, ремонтном производстве при восстановлении формы и размеров деталей. Способ включает предварительную подготовку поверхности, нанесение покрытия и последующую механическую обработку. Предварительную подготовку поверхности проводят с использованием электрокорунда циркониевого марки 38А-5 зернистостью 60…80 мкм при давлении сжатого воздуха 0,60…0,65 МПа и дистанции обработки 100…110 мм до шероховатости поверхности R=80…100 мкм. Нанесение покрытия осуществляют сверхзвуковым электродуговым напылением при скорости истечения воздуха из распылительной головки металлизатора 500…520 м/с, давлении сжатого воздуха 0,75…0,80 МПа, рабочем токе дуги 310 А, рабочем напряжении дуги 28…30 В и скорости подачи напыляемой проволоки 50ХФА - 9…10 м/мин. Повышается прочность сцепления нанесенного покрытия с подложкой, снижается его пористость ...

СПОСОБ АНТИКОРРОЗИОННОЙ ОБРАБОТКИ ДЕТАЛИ ПУТЕМ ОСАЖДЕНИЯ СЛОЯ ЦИРКОНИЯ И/ИЛИ ЦИРКОНИЕВОГО СПЛАВА

... 1. Способ антикоррозионной обработки детали, включающий стадию осаждения слоя циркония и/или циркониевого сплава, не содержащего оксидов, на поверхность этой детали посредством напыления, причем деталь выдерживают при температуре ниже 200°С в течение этой стадии осаждения. ! 2. Способ по п.1, состоящий исключительно из стадии осаждения, указанной в п.1. ! 3. Способ по п.1, в котором слой циркония и/или циркониевого сплава имеет толщину до 2 мм. ! 4. Способ по п.1, в котором слой получен из циркония. ! 5. Способ по п.1, в котором стадию осаждения осуществляют методом, выбранным из электродугового напыления, термического напыления с кислородным топливом для высокоскоростного напыления, плазменного напыления и холодного напыления. ! 6. Способ по п.1, в котором стадию осаждения осуществляют методом холодного напыления. ! 7. Способ по п.1, в котором стадию осаждения осуществляют в атмосфере инертного газа. ! 8. Способ по п.1, в котором деталь, подлежащую обработке, выбирают из деталей, изготовленных ...

МЕТАЛЛИЧЕСКИЙ ПОРОШОК ДЛЯ ТЕРМИЧЕСКОГО НАНЕСЕНИЯ ПОКРЫТИЯ НА ПОДЛОЖКИ

... 1. Применение металлического порошка для термического нанесения покрытий на подложки, при этом порошок по существу состоит из частиц предварительно легированного основного железного порошка, содержащего частицы молибдена, введенные диффузионным легированием в частицы основного порошка, причем частицы молибдена получены из восстановленного триоксида молибдена, и количество молибдена, введенного диффузионным легированием в частицы основного порошка, составляет более 2, предпочтительно более 3, а наиболее предпочтительно более 4 мас.% в расчете на массу металлического порошка. 2. Применение по п.1, где количество молибдена, введенного диффузионным легированием в частицы основного порошка, составляет между 2 и 15, предпочтительно между 3 и 10%, а наиболее предпочтительно между 4 и 10 мас.% в расчете на массу металлического порошка. 3. Металлический порошок для термического нанесения покрытий на подложки, по существу состоящий из частиц предварительно легированного основного железного порошка ...

СТОЙКОЕ К РАСТРЕСКИВАНИЮ МЕТАЛЛИЧЕСКОЕ ИЗДЕЛИЕ (ВАРИАНТЫ) И СПОСОБ УМЕНЬШЕНИЯ РАСТРЕСКИВАНИЯ МЕТАЛЛИЧЕСКИХ ИЗДЕЛИЙ

... 1. Стойкое к растрескиванию металлическое изделие, отличающееся тем, что оно содержит металлическую подложку, по меньшей мере одно керамическое теплозащитное покрытие и керамическое связующее покрытие, расположенное между указанной металлической подложкой и указанным по меньшей мере одним керамическим теплозащитным покрытием, причем керамическое теплозащитное покрытие содержит диоксид циркония в качестве основы и по меньшей мере один элемент, выбранный из группы, состоящей из La, Се, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, In, Y, Mo и С, оксидов редкоземельных металлов, скандия, и индия, а керамическое связующее покрытие состоит из диоксида циркония, стабилизированного иттрием. 2. Изделие по п.1, отличающееся тем, что металлическая подложка выполнена из материала, выбранного из группы, состоящей из стали, суперсплава, титанового сплава, и медного сплава. 3. Изделие по п.1, отличающееся тем, что оно содержит слой термически выращенного оксида, размещенный между указанной металлической ...

СПОСОБ ФОРМИРОВАНИЯ ПОКРЫТИЯ С НАНОЧАСТИЦАМИ

... 1. Способ формирования покрытия с наночастицами, включающий подачу, по крайней мере, двух компонентов (порошков, жидкостей) покрытия с определенным расходом каждого компонента в сверхзвуковой поток рабочего газа с образованием газодинамического факела распыления и послойное нанесение компонентов покрытия с определенной концентрацией каждого компонента покрытия в каждом слое на поверхность изделия, отличающийся тем, что из компонентов покрытия составляют одну или несколько композиций, в состав которой входят наночастицы, композицию диспергируют, перемешивают и гомогенизируют в газодинамическом факеле распыления, образованном, по крайней мере, одной струей композиции, охваченной двумя или более взаимодействующими между собой сверхзвуковыми струями рабочего газа, истекающими из сопел. ! 2. Способ по п.1, отличающийся тем, что композиции диспергируют, перемешивают и гомогенизируют в газодинамическом факеле распыления, образованном струями соответствующих композиций, охваченных двумя или более ...

СПОСОБ НАНЕСЕНИЯ МНОГОКОМПОНЕНТНОГО ПОКРЫТИЯ ПРИ ЭЛЕКТРОДУГОВОЙ МЕТАЛЛИЗАЦИИ

Изобретение относится к способу нанесения многокомпонентного покрытия путем электродуговой металлизации и предназначено для создания антифрикционных покрытий на поверхности деталей, работающих в условиях интенсивного износа поверхностного слоя. Для нанесения многокомпонентного покрытия используют по меньшей мере два металлизатора с двумя проволоками в каждом металлизаторе. Металлизаторы располагают под углом α1 в диапазоне от 35 до 45° между их осями и под углом α2 в диапазоне от 18 до 22° к нормали к обрабатываемой поверхности так, чтобы зона электрической дуги находилась на расстоянии от 130 до 150 мм от обрабатываемой поверхности. В процессе металлизации обеспечивают сход потоков диспергированной смеси металлов в точку на обрабатываемой поверхности. Используют проволоки состава Cu и Sn диаметром 1,5-2,5 мм, при этом выбирают проволоки с соотношением компонентов, позволяющим получить в итоге при смешении компонентов всех проволок покрытие оптимального состава. Технический результат заключается ...

СПОСОБ УПРОЧНЯЮЩЕЙ ОБРАБОТКИ ТИТАНА И ЕГО СПЛАВОВ

Способ упрочняющей обработки титана и его сплавов, включающий насыщение поверхности пучком ускоренных ионов, отличающийся тем, что, с целью повышения усталостной прочности и долговечности, насыщение проводят ионами бериллия.

Способ газопламенного напыления порошковых материалов с получением покрытия на никелевой основе посредством термораспылителя

Изобретение относится к области газотермических технологий и может быть использовано при нанесении порошковых покрытий методом низкоскоростного газопламенного напыления. Способ газопламенного напыления порошкового покрытия на никелевой основе посредством термораспылителя включает активирование пламени, образованного при сгорании ацетилена и кислорода, путем подачи исходной активирующей добавки в виде пищевой порошкообразной соли аммония транспортирующим воздухом в центральный канал термораспылителя с образованием активирующего атомарного водорода и имеющего антиокислительные свойства углекислого газа и введение напыляемого порошкового материала в активированное пламя инжекцией в виде радиальной подачи напыляемого порошкового материала в струе воздуха под срез сопла термораспределителя. Обеспечивается повышение физико-механических свойств покрытия поверхностей деталей машин и инструмента и снижение опасности в работе. 1 ил., 2 табл.

СКОЛЬЗЯЩИЙ ЭЛЕМЕНТ И СКОЛЬЗЯЩИЙ ЭЛЕМЕНТ ДЛЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ

ИЗНОСОСТОЙКОЕ ПОКРЫТИЕ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

... 1. Износостойкое покрытие, состоящее из матричного самофлюсующегося сплава на основе никеля, содержащего хром, кремний, бор, и распределенных в нем частиц упрочняющей добавки на основе двойного борида, отличающееся тем, что частицы упрочняющей добавки распределены в матричном сплаве послойно, а именно: I слой (верхний) - 73oC80 % от общего количества частиц упрочняющей добавки; II слой (средний) - 20oC27 % от общего количества частиц упрочняющей добавки; III слой (нижний) - частицы упрочняющей добавки отсутствуют. 2. Способ нанесения износостойкого покрытия, включающий получение порошковой шихты путем смешения самофлюсующегося сплава на основе никеля, содержащего хром, кремний, бор, и упрочняющей добавки на основе двойного борида с дисперсностью частиц 40 - 90 μк, ввод в плазменную струю полученной шихты и последующее напыление, отличающийся тем, что порошок упрочняющей добавки содержит 22 - 36% от общего частиц дисперсностью менее 50 μк и 64 - 78% от общего частиц дисперсностью более 50 ...

РАБОЧИЕ ВАЛКИ С ПОКРЫТИЕМ, НАНЕСЕННЫМ ТЕРМИЧЕСКИМ НАПЫЛЕНИЕМ

... 1. Рабочий валок для получения листового материала из металла или металлического сплава, содержащий цилиндрическую деталь, имеющую наружную периферическую поверхность и нанесенное термическим напылением покрытие на наружной периферической поверхности упомянутой цилиндрической детали, при этом упомянутое нанесенное термическим напылением покрытие содержит приблизительно от 65 до 95 мас.% одного или более карбидов металлов группы VI и приблизительно от 5 до 35 мас.% одного или более переходных металлов, выбранных из хрома, марганца, железа, кобальта и никеля. ! 2. Рабочий валок по п.1, в котором листовой материал из металла или металлического сплава включает алюминий или алюминиевый сплав, железо или железный сплав, титан или титановый сплав или никель или никелевый сплав. ! 3. Рабочий валок по п.1, в котором один или более карбидов металлов группы VI выбраны из WC, MoC, CrC, WCrC, WМoC и CrМoC. ! 4. Рабочий валок по п.1, в котором нанесенное термическим напылением покрытие содержит приблизительно ...

Порошковая проволока для нанесения газотермических покрытий

Сущность изобретения: порошковая проволока содержит трубчатую оболочку пз стали н порошковый наполнитель, включающий ингредиенты в следующем соотноше- mnij мас.%: медь 16 - 18, бор 4-5, кремний 6-8, никель - остальное. Характеристики покрытий, полученных из заявленной проволоки: твердость 48 - 50 HRC, прочность сцепления 47 - 53 МПа, температура оплавлсния 903 - , коэсрфи- циент трения 0,13. 1 табл. |и е Оэ ы чо О ы 4 ...

МНОГОСЛОЙНЫЙ УПЛОТНИТЕЛЬНЫЙ МАТЕРИАЛ

Использование: в области турбомашиностроения, в частности, в качестве уплотнения радиальных зазоров проточной части газовых турбин, работающих при температурах до 1250°С. Сущность изобретения: предложен многослойный уплотнительный материал следующего состава (мас.%): рабочий слой: диоксид циркония, стабилизированный 5-10 мас.% оксида иттрия, 80-95; нитрид бора или/и графит 5-20; первый промежуточный слой: нихром с 18-22 мас.% хрома 10-40; диоксид циркония, стабилизированный 7-12 мас.% оксида иттрия, 60-90; второй промежуточный слой: нихром с 18-22 мас.% хрома 60-90; диоксид циркония, стабилизированный 7-12 мас.% оксида иттрия, 10-40, при этом соотношение толщин рабочего, первого и второго промежуточных слоев составляет соответственно 3: (1-2):(1-2). Характеристики материала: повышена истираемость на 17-52%, прочность сцепления с подложкой на 18-41%, эрозионная стойкость на 20-47% выше. 2 табл.

Способ получения металлизированной полиолефиновой пленки

СПОСОБ ПОЛУЧЕНИЯ МЕТАЛЛИЗИРОВАННОЙ ПОЛИОЛЕФИНОВОЙ ПЛЕНКИ по авт.св. № 705006, о т л и ч .а ю щ и и с я тем, что, с целью повышения экономии металла, формирование пленки из полиолефина осуществляют между поверхностями двух подложек из металлов с различными электродными потенциалами.

Способ напыления металлических покрытий

Изобретение относится к области нанесения покрытий газотермическими методами, в частности к тигельной металлизации, и может быть использовано в различных отраслях машиностроения. Цель изобретения - повышение однородности и коррозионной стойкости покрытий. Изобретение включает расплавление металла покрытий. При этом обеспечивают перегрев расплава на 100 - 1000°С над температурой его плавления. Рабочий газ, например аргон, подают под давлением 10 - 60 атм при его расходе 2 - 6 кг на 1 кг распыляемого расплава. Распыленные частицы транспортируются рабочим газом к подложке, где и формируют покрытие с микрокристаллической и аморфной структурой, что обуславливает его высокую однородность и коррозионную стойкость. Использование для распыления охлажденных газов от - минус 30 до 150°С в еще большей степени способствует формированию такой структуры и расширяет ассортимент напыляемых материалов. 1 з.п. ф-лы, 1 табл.

Электрохимический способ осаждения рения из расплава

Порошок сплава на основе никеля для пламенного напыления

Изобретение относится к области металлургии, в частности к соста- ву порошка сплава на основе никеля для пламенного напыления. Целью изобретения является повышение прочности сцепления покрытия с основой. Предложенный порошок сплава на основе никеля дгтя пламенного напыления несферической формы со средним размером частиц 140+325 меш и удельной поверхностью, превьяпающей 250 , содержащий углерод, железо и кремний, дополнительно содержит,мас.%: молибден 21,8-22,8, вольфрам 4,5-5,8, ванадий 0,3-0,4 и титан 6,5-8,4. Прочность сцепления покрытия с основой 5500-9600 фунт/дюйм - (386,7- 675,0 кг/см). I табл. § СО ...

Порошкообразный материал для термического напыления покрытий

Изобретение относится к области порошковой металлургии, в частности к порошкообразным материалам для термического напыления покрытий. Цель - повышение эрозионной стойкости покрытия. Порошкообразный материал состоит из смеси порошка самофлюсующегося матричного сплава на основе никеля, содержащего, мас.%: хрома 18,0 - 35,0 железа 0,1 - 25,0 бора 0,5 - 4,5 кремния 0,5 - 5,5 углерода 0,1 - 2,0, и 20 - 80 мас.% порошка монокарбида вольфрама. Матричный сплав дополнительно может содержать 15 мас.% молибдена и/или 2 мас.% ниобия. Преимущественно смесь состоит из 50 мас.% монокарбида вольфрама и 50 мас.% матричного сплава на основе никеля, содержащего, мас.%: 22 хрома, 4,0 железа, 3,5 бора, 4,1 кремния, 0,6 углерода, 2,5 молибдена и 0,1 ниобия. 2 з.п. ф-лы, 2 табл.

Herd-Walze mit besonders grosser Härte-Kapazität

VERBUNDFLAMMSPRITZPULVER

METALLPULVERSPITZBESCHICHTUNGSMATERIAL-VERFAHREN ZUR HERSTELLUNG DIESES MATERIALS UND DESSEN VERWENDUNG

SEITENGEHAEUSE FUER EINEN DREHKOLBENMOTOR UND VERFAHREN ZU DESSEN HERSTELLUNG

Elektrode für elektrolytische Verfahren und Verfahren zur Herstellung der Elektrode.

IMPROVED DURABILITY METALLIC-CERAMIC TURBINE AIR SEALS

WAERMEHEMMENDES BESCHICHTUNGSSYSTEM.

Magnetische Aufzeichnungsmedium und Verfahren und Gerät zur Herstellung desselben

Verfahren zum Verbinden poroeser metallischer Werkstuecke

SCHUTZSCHICHT.

A protection coating is vacuum plasma sprayed onto a substrate by forming an adhesion layer, and intermediate layer and a cover layer. The adhesion layer is made from a material whose chemical composition and thermal expansion coefficient essentially correspond to those of the substrate. The intermediate layer is made up of a mixture of the materials of the adhesion layer and the cover layer and is essentially a transition area gradually passing from 100% adhesion material to 100% cover layer. The latter is made of a refractory material in the form of an oxide, boride, carbide and nitride.

VERFAHREN ZUR HERSTELLUNG EINES WERKSTOFFES MIT EINEM ABHAENGIGEN GRADIENTEN.

Metallkörper mit metallischer Schutzschicht

Metallkörper, auf den zumindest teilweise eine Metallschicht als thermischer und/oder mechanischer und/oder chemischer Schutz aufgetragen ist, die aus wenigstens drei Teilschichten besteht, von denen die erste als Haftschicht direkt auf der Oberfläche des Metallkörpers aufliegt und darauf wenigstens zwei weitere Schutzschichten aufgebaut sind, wobei wenigstens eine Schutzschicht die Bestandteile Eisen und Kohlenstoff und Silizium und Mangan und Chrom und Molybdän und Nickel und Kobalt enthält.

Verfahren zur Herstellung von oxydations- und hitzeresistenten Schutzschichten

Binaere Cermet Zusammensetzung,die fuer die Herstellung von Schutzueberzuegen fuer metallische Kupferflaechen geeignet sind

Verfahren zur Herstellung von Heissgas-Korrosionsschutzschichten

Verfahren zur Herstellung von Heissgas-Korrosionsschutzschichten auf einen Werkstoff mit einem Ni-Basismaterial, dadurch gekennzeichnet, dass ein als Draht vorliegendes Edelmetall in einem Lichtbogen-Drahtspritzprozeß als Aerosol auf den Werkstoff aufgebracht wird, welcher anschließend alitiert wird.

Tassenstössel, Verfahren zum Beschichten von Tassenstösseln und Verwendung des Plasmasprühens zum Beschichten von Tassenstösseln

Producing wear-resistant coating on casting mould

A casting mould substrate (1) of Cu (alloy) is coated with a wear-resistant layer (2) containing hard particles of WC based material of size 5-53 mm. The spraying process is a high pressure, high speed, oxygen, fuel process which ensures that the partially non-melted particles are partially embedded in the substrate surface. The coating has a thickness of 0.01-6 mm.

METALLHALTIGES FLAMMSPRITZMATERIAL

Carbide-contg. thermal spraying powder

Powder material for thermal spraying comprises a mixt. of a self-fluxing matrix alloy powder and a metallic carbide powder, the latter forming 20-80 wt.% of the mixt.. The matrix powder has a compsn. of (wt.%) 20.0-35.0 Cr, 0.1-25.0 Fe, 0.5-4.5 B, 0.5-5.5 Si, 0.1-2.0 C, 0-15.0 Mo, 0-2.0 Nb, remainder Ni. Carbide is pref. W monocarbide and carbide particles are coated with Ni.

ALUMINUM AND YTTRIUM OXIDE COATED THERMAL SPRAY POWDER

Elektrode mit hohem Borgehalt zum Hartauftragsschweißen

Elektrode zum Abscheiden einer Hartauftragsschweißlegierung zum Aufbringen auf eine Metalloberfläche, wobei die Hartauftragsschweißlegierung nach Atomgewichtsprozent der Elektrode Folgendes umfasst: etwa 2,5 bis etwa 14,0 Prozent Bor; etwa 15,0 bis etwa 26,0 Prozent Chrom; etwa 14,0 bis etwa 25,0 Prozent Kohlenstoff; etwa 0,75 bis etwa 3,0 Prozent Mangan; etwa 0,75 bis etwa 3,0 Prozent Silizium; und der Rest Eisen.

Drahtförmiger Spritzwerkstoff

Drahtförmiger Spritzwerkstoff (4), insbesondere zum Lichtbogendrahtspritzen, umfassend im Wesentlichen Eisen, dadurch gekennzeichnet, • dass der Spritzwerkstoff (4) zumindest mit Kohlenstoff als Mikrolegierung derart gebildet ist, dass beim Erstarren des Spritzwerkstoffs Bainit und Martensit entstehen, • wobei folgende Legierungsbestandteile vorgesehen sind: • Kohlenstoff 0,8 Gew.-% bis 1,0 Gew.-%, • Silizium 0,25 Gew.-% bis 0,3 Gew.-%, • Mangan 0,25 Gew.-% bis 0,45 Gew.-%, • Chrom 0,45 Gew.-% bis 0,55 Gew.-% • Kupfer 0,25 Gew.-% bis 0,35 Gew.-%, jeweils bezogen auf ein Gesamtgewicht.

Method of coating a composite material and a coated edge of a composite structure

A method of coating a composite 20 comprises applying an adhesion promotion layer 22 containing metal particles 26 in a binder paint 24 to the composite and applying a thermal spray coating 28 to the adhesion promotion layer. Typically, the metal particles are irregularly-shaped and may be produced by water atomisation. The particles may be steel particles having a size of 5-90 microns. In one embodiment, at least some of the metal particles are exposed through the binder paint so as to engage the thermal spray coating when applied. The adhesion promotion layer and the overlying thermal spray coating may be applied to an edge 20a of the composite. Preferably, the edge has a rounded or bevelled profile. The thermal spray coating may comprise a high velocity oxygen fuel spray coating. Alternatively, a twin wire arc bond coating may be applied to the adhesion promotion layer before application of the high velocity oxygen fuel spray coating.

Spraying metals

... 543,773. Coating metallic surfaces. LUMB, C. F. Sept. 6, 1940, No. 13953. [Class 82 (ii)] Metallic surfaces are coated with metals by spraying a mixture of aluminium oxide and a metal in finely divided or powdered form through a neutral or reducing flame to combine the oxide with the metal or to reduce the oxide and form an alloy with the metal. The metals employed are aluminium, zinc, tin, copper, cadmium, brass or nickel. In an example a mixture of 20 per cent. aluminium oxide with zinc or tin was used.

Method of applying a coating of a high melting point material utilizing detonation waves

Coatings of boron carbide or tungsten carbide are formed on foundation surfaces using a detonation spray gun (see Group XXIX), the tungsten carbide composition fed to the gun comprising about 9 per cent cobalt and 4 per cent carbon and being of a particle size of 10 to 40 microns. The coatings comprise mixed layers of WC, W2 C, and complex carbides or cobalt and tungsten. The density is stated to be 14.5 g./c.c. and the porosity less than 1 per cent. Specifications 742,459, [Group II], and 742,460, [Group XXII], are referred to.ALSO:A method of applying a coating of a high melting point material to a workpiece comprises providing a comminuted coating material in the path of detonation waves produced by igniting a detonatable mixture of a fluid fuel e.g. acetylene, and an oxidising gas, e.g. air, in an elongated container, the open end of which is directed towards the workpiece, the coating material consisting of comminuted molybdenum, tungsten, cobalt-chromium-tungsten alloy, nickel-molybdenum ...

Metallo-ceramic compositions for protection of metallic surfaces

A metallo-ceramic composition for application by flame spraying to metallic surfaces e.g. iron, steel, copper or brass comprises:- The ceramic oxides must have a melting point of 1900 DEG C. or above and may be alpha alumina, zirconia stabilized with Ca, Mg or Y oxides, magnesia, magnesium-aluminium oxides (e.g. spinels), calcium zirconate or zirconium silicate but the simple oxides are preferred. The powder mixture is preferably used as such but the use of a sintered rod thereof is also disclosed. The application of more than one layer is also disclosed.

PULVERULENT MATERIAL

IMPROVED HEAT TRANSFER SURFACE

Plasma deposition process

Dense layers of metals and compounds may be formed on a receiving surface of simple geometry by use of a plasma spray technique in a vacuum chamber in which multiple guns are used simultaneously to deposit material in overlapping areas.

Flux-cored wire containing elements and/or metallic hard substances; spraying; welding

The flux of flux-cored wire for use in arc-welding, or metal spraying comprises, with respect to the total weight of the wire, 0.05 to 15% by weight of elements having a negative enthalpy of formation for oxides of 200 to 800 kcal/mol and/or 2 to 40% by weight of metallic hard substances. The elements may be selected from Al, B, Nb, Ta, Ti, V, Y, Zr and alloys and mixtures thereof. The metallic hard substance is preferably a metallic boride or a carbide material which may include Si and/ or B.

Method of forming article with variable composition

Method of coating a mould cavity with release agents

Corrosion-resistant aluminium-bearing iron base alloy coating

Metals such as mild steels are coated to improve their properties such as their resistance to corrosion with an aluminium-bearing iron base alloy such as a ferritic Fe-Cr-Al-Y steel in the form of first and second layers, the first layer being in contact with the substrate and carrying the second layer, and the concentration of oxide at the interface between the first layer and the substrate being less than that in the second layer, thereby giving both good bond strength and corrosion resistance. The layers may be applied by thermal spraying (e.g. flame spraying) where the spraying conditions for producing the first layer differ from those for producing the second layer thereby to give rise to the above-mentioned difference in oxide concentration.

IMPROVED METHOD OF MANUFACTURING METAL PRODUCTS

Metal filler composition and method of employing same

Self-bonding MCrA1Y powder

Combustion engine and method for applying a heat-insulating layer

A combustion engine with heat-stressed parts has a porous heat-insulating layer applied to these parts. The heat-insulating layer formed from grains and/or fibres bonded to one another on the outside is produced at least partially from a heat-resistant and abrasion-proof insulating material having stability under thermal shocks. The heat-insulating layer has a heat penetration coefficient defined by the following formula b = * radical ** small Greek rho * * solidtriangle; up triangle filled* C * solidtriangle; up triangle filled* * small Greek lambda * with b: the heat penetration coefficient of the heat-insulating layer in [J* solidtriangle; up triangle filled*(Kcmé * radical *s) -1 ], * small Greek rho *: the density of the heat-insulating layer in [g/cm 3 ], * small Greek lambda *: the thermal conductivity of the insulating material in [W/cmK] C: the specific heat of the insulating material in [J/gK], the said heat penetration coefficient being lower than 0.25 [J* solidtriangle; up triangle ...

Cobalt nickel-base surfacing alloys

A powdered mixture of a nickel and a cobalt base alloy of not greater than 100 mesh B.S. is sprayed on to a component and fused at a temperature below the fusion temperature of the component. The mixture contains 20-40% Co, 5-20% Cr, 1-15% W, 0.1-1.5% C, 25-60% Ni, 1-5% Si and 0.5-5% B. As described, Ni base alloys comprising C, Fe, Cr, Si, B and Co base alloys comprising C, Cr, Si, B, Ni, Tu are mixed in various specified proportions and deposited on cast iron or steel.

PROCESS FOR THE MANUFACTURE OF CONVEYING SCREWS OF LONG SERVICE LFE AND HIGH RESISTANCE TO WEAR

... 1440333 Coating with metals by spraying EPITOGEPGYARTO VALLALAT 22 Nov 1973 [11 Dec 1972] 54226/73 Heading C7F A conveyor screw is plasma or flame sprayed with (wt. per cent) 0À4 C, 16 Cr, 4B, 4 Si, 3 Fe, 2À5 Cu, 2À5 Mo, 2À5 W, balance Ni. The screw is cleaned, heated to 160 to 200‹C, and a coating of 50 to 100 microns sprayed whilst it is rotated, the coating is then heated to 1100 to 1250‹C, and an intermediate layer of 0À2 to 2mm. applied in thickness steps of 0À2 to 0À25 mm., then after cooling at a rate less than 5 to 10‹C per minute, a top layer of 50 to 100 microns is applied at a temperature of 160 to 200‹C, and the screw is finally cooled at less than 5 to 10‹C per minute.

METAL SUBSTRATE COATINGS

MANUFACTURE OF CERAMIC OR CERMET COMPOSITIONS

... 1363414 Granular ceramic or cermet materials ALBRIGHT & WILSON Ltd 27 July 1971 [31 July 1970] 37203/70 Headings C1A C1J and C1N Granular ceramic or cermet material is produced by slurrying at least one powdered ceramic material, optionally in admixture with at least one powdered metal in an aqueous solution of a thermally decomposable water-soluble metal compound other than chromium trioxide and forming the slurry into heat dried granules. In a modification alkali is added to an aqueous solution of a water soluble salt in which the powdered ceramic material has been slurried to precipitate a thermally decomposable hydroxide, basic salt or hydrated oxide, the consequent mixture being formed into heat dried granules. The powdered ceramic material may comprise Ni, Cr, Al, Zr, W, Ti, and/or Mg oxides or carbides. Many inorganic and organic thermally decomposable Ni, Cr, Zr, W, Mg, Ti, Al compounds are listed. In Examples 1-3 slurries of nickel oxide in nickel acetate solution are spray dried ...

HARD FACING OF IRON BASE ALLOY SUBSTRATES

COATING OF BOILER TUBES

... 1481678 Coated steel tubes EUTECTIC CORP 9 April 1976 [11 April 1975] 14556/76 Heading F2P [Also in Division C7] Steel boiler tubes are coated with a layer of 10-70 wt. per cent of a refractory compound dispersed in 30-90 wt. per cent of a Ni-base, Ni-Cu-base, Fe-base, or Co-base alloy containing 0À3-6À0 wt. per cent Si and/or 0À05-5À0 wt. per cent B, the layer being fused into the tube surface. The refractory compound is selected from the carbides of W, Si, V, Ti, B, Cr, Mo; nitrides of Si, B, Ti; borides of Cr, Mo, W, Ta, V; and silicides of B, Mo, Nb, the preferred compound being WC. Examples are given of suitable matrik alloys. The layer is preferably deposited by flame spraying, the fusing being effected simultaneously or by subsequent treatment with a torch or in a furnace. In the examples, a mix of 60 wt. per cent WC and 40 wt. per cent Ni-Cr-Fe-Si-B alloy is sprayed on to grit-blasted tubes, the tubes in Example 2 being welded to form a panel.

MOLYBDENUM PLASMA SPRAY POWDER PROCESS FOR PRODUCING SAID POWDER AND COATING MADE THEREFROM

Process for protecting carbon anodes for use in the Hall-Heroult process

Process for protecting carbon anodes 13 for use in the Hall-Heroult process and the anodes themselves are described. A method for coating an anode 13 intended to be used in molten salt electrolysis for refining aluminium (figure 1), wherein a coating 53 is applied onto at least part of the upper and/or side surfaces of said anode by thermal spray coating. The coating may comprise an aluminium or alumina coating. The anode can be prebaked before coating and the coating applied using a spray gun 55. The spray gun may be mounted on a robotic arm 60, controlled by a robot 61. The aluminum feedstock may be in the form of aluminium rod or wire 56; the coating can be in the range 0.2-3.5mm thick.

BRAKE DISK AND PROCEDURE FOR THEIR PRODUCTION

METALLIFEROUS FLAMING SPRAYING POWDER

LINKAGE LINK FOR DRILL PIPES

CATALYST ELEMENT ALSO UNDER TOO AN ELECTRICAL SHEET SPRAYED SUBSTRATE AND PROCEDURE FOR THE PRODUCTION OF THIS ELEMENT

PROCEDURE FOR THE PRODUCTION OF WEAR AND/OR RUSTPROOF ONES SURFACE COATINGS AS WELL AS MEANS FOR THE EXECUTION OF THE SAME

VERFAHREN ZUM BESCHRIFTEN HEISSER STAHLBLOECKE

METHOD OF APPLYING AN INSCRIPTION TO HOT STEEL BLOCKS

In order to provide hot steel blocks with a durable inscription by means of flame spraying, use is made of a powder mixture comprising at least two metals, where one metal powder component melts below the average surface temperature of the steel blocks and another metal powder component melts above the average surface temperature.

BONDING MATERIAL FOR THE PRODUCTION OF ELEKRI CONTACTS AND PROCEDURES FOR ITS PRODUCTION

COCRC COATING FOR SURFACES SUSPENDED TO CONSUMPTION

THERMISCH AUFGTRAGENE VERSCHLEISSFESTE CERMETSCHICHTUNG AUF ARBEITSFLAECHEN VON SCHEIBENFOERMIGENMASCHINENTEILEN AUS ALUMINIUM ODER ALUMINIUM- LEGIERUNG

AUFTRAGSCHWEISSMATERIAL

FLAMMSPRITZ-VERBUNDPULVER

PROCEDURE AND MATERIAL FOR MANUFACTURING A METALLIFEROUS ONE AND THERMAL SQUIRTED LAYER

DEPOSITION-WELDING MATERIAL

PROCEDURE FOR MARKING HOT STEEL BLOCKS

SUPPORTING BODY AS WELL AS PROCEDURE FOR THE IMPROVEMENT OF THE WEAR SITUATION OF SUPPORTING BODIES WITH BROAD GRINDING MACHINES

THERMAL SPRAYING COATING COMPOSITIONS FOR SAND OFF-CASH SEALS

Non-magnetic drill string member with non-magnetic hardfacing and method of making the same

A method for applying a non-magnetic, abrasive, wear-resistant hardfacing material to a surface of a drill string member includes providing a non-magnetic drill string member formed of a non-magnetic material, the drill string member having an outer surface. It also includes providing a non-magnetic hardfacing precursor material comprising a plurality of non-magnetic, sintered carbide pellets and a non-magnetic matrix material; heating a portion of the non-magnetic hardfacing precursor material to a temperature above the melting point of the matrix material to melt the matrix material. It further includes applying the molten non-magnetic matrix material and the plurality of non-magnetic, sintered carbide pellets to the exterior surface of the drill string member; and solidifying the molten non-magnetic matrix material to form a layer of a non-magnetic hardfacing material having a plurality of non-magnetic, sintered carbide pellets dispersed in the hardfacing material.

Sliding element having adjustable properties

A sliding element, particularly a piston ring for an internal combustion engine, includes a substrate, and a wear-protection layer, obtained by thermal spraying of a powder comprising the element proportions 2-50 percent by weight iron, FE; 5-60 percent by weight tungsten, W; 5-40 percent by weight chrome, Cr; 5-25 percent by weight nickel, Ni; 1-5 percent by weight molybdenum, Mo; 1-10 carbon, C and 0.1-2 percent by weight silicon, Si; and a running-in layer, obtained by thermal spraying of a powder comprising the element proportions 60-95 percent by weight nickel; 5-40 percent by weight carbon.

Thermal sprayed coating of jig for producing glass sheet, and jig for producing glass sheet

To provide a thermal sprayed coating of a jig for producing glass having favorable wear resistance and lubricity at high temperature of at least the strain point of a glass sheet. A thermal sprayed coating of a jig for producing a glass sheet, to be used for a jig for producing glass to be in contact with a glass sheet at a temperature of at least the strain point, which comprises tungsten carbide; at least one metal carbide selected from the group consisting of titanium carbide, zirconium carbide, hafnium carbide, niobium carbide, tantalum carbide, chromium carbide and molybdenum carbide; a metal containing Ni; and inevitable impurities, and a jig for producing a glass sheet comprising the thermal sprayed coating.

Spray powder for cermet-coating of doctor blades

The invention relates to a spray powder for the production of a Cermet coating on a doctor blade surface, wherein the spray powder includes a mixture of a metal powder and a hard material powder, wherein at least 90 percent of the granules of the metal powder are smaller than 63 μm, and preferably smaller than 48 μm, and at least 90 percent of the granules of the hard material powder are smaller than 2 μm.

POWDER FOR THERMAL SPRAYING AND PROCESS FOR FORMATION OF SPRAYED COATING

A thermal spray powder, which includes granulated and sintered cermet particles that contain a metal having an indentation hardness of 500 to 5,000 N/mm, is disclosed. The granulated and sintered cermet particles have an average size of 30 μm or less. The granulated and sintered cermet particles are composed of primary particles having an average size of 6 μm or less. The granulated and sintered cermet particles have a compressive strength of from 100 to 600 MPa. It is preferable that the metal contained in the granulated and sintered cermet particles includes at least one selected from the group consisting of cobalt, nickel, iron, aluminum, copper, and silver. The thermal spray powder is usable in a low-temperature thermal spraying process such as cold spraying using nitrogen as a working gas. 1. A thermal spray powder that is usable in a low-temperature thermal spraying process , comprising granulated and sintered cermet particles that contain a metal having an indentation hardness of 500 to 5 ,000 N/mm , whereinthe granulated and sintered cermet particles have an average size of 30 μm or less;the granulated and sintered cermet particles are composed of primary particles having an average size of 6 μm or less, andthe granulated and sintered cermet particles have a compressive strength of from 100 to 600 MPa.2. The thermal spray powder according to claim 1 , wherein the metal contained in the granulated and sintered cermet particles includes at least one selected from the group consisting of cobalt claim 1 , nickel claim 1 , iron claim 1 , aluminum claim 1 , copper claim 1 , and silver.3. The thermal spray powder according to claim 1 , wherein the low-temperature thermal spraying process is cold spray that utilizes a working gas containing nitrogen as a main component.4. A method for forming a thermal spray coating claim 1 , the method comprising forming a thermal spray coating through a low-temperature thermal spraying process of the thermal spray powder according ...

Deposition System, Method And Materials For Composite Coatings

A composite powder for a deposition of a composite coating comprises a nonmetallic component and a metallic component, the metallic component having an amorphous structure or a nanocrystalline structure. The metallic component may include an amorphous metallic alloy. The metallic alloy may include constituents having the amorphous structure. The metallic component may include a combination of the metallic alloy existing in the amorphous state and constituents of the amorphous metallic alloy in the amorphous state. The composite metal-ceramic powders are used for depositing composite coatings on a selected surface. Disclosed are several methods and systems for producing such composite powders. Disclosed are also several methods and systems for depositing composite coatings. Advantageously, the deposited coatings exhibit high corrosion resistance, high wear resistance, and excellent structural properties.

Water-reactive al-based composite material, water-reactive al-based thermally sprayed film, process for production of such al-based thermally sprayed film, and constituent member for film-forming chamber

Herein provided are a water-reactive Al-based composite material which is characterized in that it is produced by incorporating, into Al, 2.0 to 3.5% by mass of In, 0.2 to 0.5% by mass of Si and 0.13 to 0.25% by mass of Ti, and which can be dissolved in water through the reaction thereof in a water-containing atmosphere; a water-reactive Al-based thermally sprayed film produced using this composite material; a method for the production of this Al-based thermally sprayed film; and a constituent member for a film-forming chamber which is provided with this Al-based thermally sprayed film on the surface thereof.

METHOD AND DEVICE FOR THERMAL SPRAYING

A thermal spraying method is provided, wherein spray particles of a powdered spray material are introduced into a hot carrier gas stream, heated by the carrier gas stream and then sprayed onto the surface of a substrate by a spray nozzle, wherein the temperature of the spray particles upon impact onto the substrate is below the melting temperature of the spray material. The spray particles are heated in the hot carrier gas stream upstream of the nozzle throat to a temperature that causes at least partial melting of the spray particles in that location. 1. A thermal spraying method , wherein spray particles of a powdered spray material are introduced into a hot carrier gas stream , heated by the carrier gas stream and then sprayed onto the surface of a substrate by means of a spray nozzle , wherein the temperature of the spray particles upon impact onto the substrate is below the melting temperature of the spray material , characterized in that the spray particles are heated in the hot carrier gas stream upstream of the nozzle throat to a temperature that causes at least partial melting of the spray particles in that location.2. The method as claimed in claim 1 , wherein the temperature to which the spray particles are heated upstream of the nozzle throat is adjusted by controlling a temperature of the carrier gas stream and/or a pressure at which the carrier gas stream is supplied to the spray nozzle.3. The method as claimed in claim 1 , wherein the temperature to which the spray particles are heated upstream of the nozzle throat is adjusted such that the temperature of at least a portion of the spray particles upon impact onto the substrate is more than 60% of the melting temperature of the appropriate spray material in Kelvin.4. The method as claimed in wherein said temperature is more than 70% of the melting temperature of the appropriate spray material in Kelvin.5. The method as claimed in wherein said temperature is more than 80% of the melting temperature of ...

Substrate for cvd deposition of diamond and method for the preparation thereof

A substrate for depositing diamond by CVD, comprising a base body of hard material and a coating layer that holds diamond particles as seed crystal in a matrix and is deposited joined thereto on a surface of said base body, wherein: the seed diamond particles have an average particle size of 1 μm or smaller; the matrix comprises a first metal selected from a first group of Si, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and W and/or a first compound between said first metal and a non-metallic substance selected from boron, carbon and nitrogen, said matrix holding the diamond particles distributed therein; and a joint zone developed as a result of a diffusion process and extending over said base body and coating layer comprises either or both atoms of said first metal and a component metal of the hard material.

Spallation-resistant multilayer thermal spray metal coatings

A multilayer, wear- and corrosion-resistant coating on a metal substrate comprising a first metal coating layer comprising a composite carbide material; a second metal coating layer over the first metal coating layer comprising at least about 50 wt % of a metal selected from the group consisting of Co, Ni, and Fe; and a surface metal coating layer comprising a cemented carbide material having a third-layer carbide material and a third-layer Co-based or Ni-based binder material.

VISUAL INDICATOR OF COATING THICKNESS

In some examples, a coating may include at least one feature that facilitates visual determination of a thickness of the coating. For example, the coating may include a plurality of microspheres disposed at a predetermined depth of the coating. The plurality of microspheres may define a distinct visual characteristic. By inspecting the coating and viewing at least one of the microspheres, the thickness of the coating may be estimated. In some examples, the plurality of microspheres may be embedded in a matrix material, and the distinct visual characteristic of the microspheres may be different than the visual characteristic of the matrix material. In other examples, the at least one feature may include at least one distinct layer in the coating system that includes a distinct visual characteristic, such as a color of the distinct layer. 1. An article comprising:a substrate; anda coating on the substrate, wherein the coating comprises at least one abradable layer, wherein the at least one abradable layer comprises a matrix material and a plurality of microspheres located within the at least one abradable layer at a predetermined depth from an outer surface of the coating, wherein the plurality of microspheres define a visual characteristic distinct from the matrix material, and wherein the plurality of microspheres comprise at least one rare earth oxide, at least one rare earth silicate, or at least one rare earth oxide and at least one rare earth silicate.2. The article of claim 1 , wherein the coating further comprises an environmental barrier coating layer claim 1 , wherein the environmental barrier coating layer comprises at least one rare earth silicate claim 1 , and wherein the environmental barrier coating layer is between the substrate and the at least one abradable layer.3. The article of claim 1 , wherein the coating further comprises a bond layer between the substrate and the at least one abradable layer claim 1 , wherein the bond layer comprises silicon.4 ...

Composite wires for coating substrates and methods of use

A composite wire utilized in connection with forming a resistant coating on a substrate includes a metallic outer sheath and an inner core, the inner core having a total fill weight above 15% total composite wire weight and including less than less 35% by weight of boron carbide in the inner core, and method of making the same.

GALVANIZED STEEL SHEET HAVING EXCELLENT HARDNESS AND GALLING RESISTANCE, AND MANUFACTURING METHOD THEREFOR

Provided is a galvanized steel sheet plated by vacuum deposition and, more specifically, to a galvanized steel sheet having excellent hardness and galling resistance, and a method for manufacturing same. The zinc coated steel sheet includes: a base steel sheet; and a zinc coated layer formed on the base steel sheet. The zinc coated layer is formed of a columnar structure, and a content of Mn included in the zinc coated layer is 0.1 to 0.4 wt %. 1. A zinc coated steel sheet having excellent hardness and galling resistance , comprising:a base steel sheet; anda zinc coated layer formed on the base steel sheet,wherein the zinc coated layer is formed of a columnar structure, and a content of Mn included in the zinc coated layer is 0.1 to 0.4 wt %.2. The zinc coated steel sheet having excellent hardness and galling resistance of claim 1 , wherein the zinc coated layer satisfies the following relational formula 1 claim 1 ,{'br': None, '[content of Mg present in a zinc grain boundary (wt. %)]/[content of Mg in a coated layer (wt. %)−0.1]≥0.95\u2003\u2003[Relational expression 1]'}3. The zinc coated steel sheet having excellent hardness and galling resistance of claim 1 , wherein the zinc coated layer has an average size of zinc grains of the zinc coated layer of 80 to 200 nm.4. A method of manufacturing a zinc coated steel sheet having excellent hardness and galling resistance comprising:preparing a base steel sheet;forming a zinc coated layer through spraying vapor generated by electromagnetic levitation induction heating of a coating raw material onto the base steel sheet,wherein the coating raw material is a Zn—Mg alloy or a mixture of Zn and Mg having a content of Mg of 0.1 to 0.4 wt %.5. The method of a zinc coated steel sheet having excellent hardness and galling resistance of claim 4 , wherein the forming a zinc coated layer is performed at a vacuum degree of 1×10mbar or less.6. The method of a zinc coated steel sheet excellent having excellent hardness and galling ...

HYBRID MANUFACTURING FOR ROTORS

A method for manufacturing a rotor includes manufacturing a hub using a conventional manufacturing process and manufacturing an airfoil on the hub using a layer-by-layer additive manufacturing process. A rotor includes a hub that has been manufactured with a conventional manufacturing process and an airfoil that has been manufactured on the hub with a layer-by-layer additive manufacturing process. 1. A method for manufacturing a rotor , the method comprising:manufacturing a hub using a conventional manufacturing process; andmanufacturing an airfoil on the hub using a layer-by-layer additive manufacturing process.2. The method of claim 1 , wherein the conventional manufacturing process is a process selected from the group consisting of machining claim 1 , forging claim 1 , milling claim 1 , or combinations thereof.3. The method of claim 1 , wherein the layer-by-layer additive manufacturing process is a process selected from the group consisting of cold spray claim 1 , thermal spray claim 1 , plasma spray claim 1 , selective laser sintering claim 1 , direct metal laser sintering claim 1 , electron beam melting claim 1 , selective laser melting claim 1 , and combinations thereof.4. The method of claim 1 , wherein manufacturing the hub includes manufacturing the hub out of a first material claim 1 , and wherein manufacturing the airfoil includes manufacturing the airfoil out of a second material.5. The method of claim 1 , wherein manufacturing the airfoil includes manufacturing a first portion of the airfoil out of a first airfoil material and manufacturing a second portion of the airfoil out of a second airfoil material.6. The method of claim 1 , and further comprising:manufacturing a plurality of airfoils on the hub using a layer-by-layer additive manufacturing process.7. The method of claim 6 , wherein the plurality of airfoils are manufactured simultaneously.8. The method of claim 6 , wherein the plurality of airfoils are manufactured one at a time.9. The method of ...

WEAR PROTECTION ARRANGEMENT FOR A TURBOMACHINE, PROCESS AND COMPRESSOR

The present invention relates to a wear protection arrangement for a turbomachine, comprising at least one adjustable guide vane, a casing in which the guide vane is arranged in an adjustable manner, an inner ring, made from a metallic material, in or on which the guide vane is arranged in an adjustable manner, a first gap between an inner guide vane tab and the inner ring and a second gap between an outer guide vane tab and the casing, at least one wear protection coating, wherein the wear protection coating(s) is/are connected to the inner ring and/or to the inner guide vane tab and the wear protection coating(s) forms or form the first gap, at least in certain regions, and/or the wear protection coating(s) is/are connected to the casing and/or to the outer guide vane tab and the wear protection coating(s) forms/form the second gap, at least in certain regions. The invention further relates to a method for applying an abradable wear protection coating and for applying an abrasive wear protection coating and to a compressor for a turbomachine having a wear protection arrangement. 114.-. (canceled)15. A wear protection arrangement for a turbomachine , wherein the arrangement comprisesat least one adjustable guide vane,a casing in which the at least one guide vane is arranged in an adjustable manner,an inner ring made from a metallic material, in or on which ring the at least one guide vane is arranged in an adjustable manner,a first gap between an inner guide vane tab and the inner ring and a second gap between an outer guide vane tab and the casing,one or more wear protection coatings connected to the inner ring and/or to the inner guide vane tab and forming the first gap, at least in certain regions,and/or one or more wear protection coatings connected to the casing and/or to the outer guide vane tab and forming the second gap, at least in certain regions.16. The wear protection arrangement of claim 15 , wherein the one or more wear protection coatings are ...

Method for manufacture of high temperature cylindrical component for a gas turbine engine

A method for the manufacture of a cylindrical component suited to use in a high temperature environment and incorporating an erosion resistant coating (4) on its outer cylindrical surface (6) is described. The method comprises, in sequential steps; providing a work piece (1) having a cylindrical body including a pair of axially spaced radially extending ribs (3a, 3b) defining an annular trough (2) therebetween. Shot peening the work piece (1). Applying an erosion resistant coating (4) in the annular trough (2) to a depth which sits radially inwardly of the radially outermost ends of the ribs (3a, 3b). Turning the radially outermost ends of the ribs (3a, 3b) whereby to match the depth of the coating (4) and provide an outer cylindrical surface with a consistent diameter across both ribs (3a, 3b) and the coating (4).

COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING

A method to protect and modify surface properties of articles is disclosed. In one embodiment of the method, an intermediate layer is first deposited onto a substrate of the article. The intermediate layer has a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils. A lubricant material is deposited onto the intermediate layer, wherein the lubricant material infiltrates at least a portion of the pores and forms a surface layer. The surface layer can be tailored with the selection of the appropriate material for the intermediate layer and the lubricant material, for the surface layer to have the desired surface tension depending on the application. 127-. (canceled)28. A method for producing a wear resistant coating on an inner surface of an oil tubular good , the method comprising:depositing a metallic layer on the oil tubular good via a thermal spray process to produce a porous coating;depositing a fluoropolymer in the form of a slurry on the porous coating; andheating the fluoropolymer to infiltrate into pores in the porous coating of the metallic layer to form the wear resistant coating;wherein the wear resistant coating comprises subsections of hydrophilic and hydrophobic regions.29. The method of claim 28 , wherein the wear resistant coating comprises alternating layers of metallic particles with a surface tension of 75 dynes/cm or higher and fluoropolymer regions with a surface tension of 20 dynes/cm or lower.30. The method of claim 28 , wherein the metallic layer is deposited by a twin wire arc spray process.31. The method of claim 28 , wherein a high atomization pressure of 80-100 psi is used to deposit a first portion of the metallic layer claim 28 , and a low atomization pressure of 20-50 psi is used to deposit a second portion of the metallic layer.32. The method of claim 31 , wherein the first metallic layer is 1-5 mils in thickness claim 31 , and the second metallic layer is 15 ...

Material joining

A method of joining includes bringing a bulk metallic glass (BMG) material to a temperature lower than the crystallization temperature of the BMG material and depositing the BMG material onto a first substrate with interlock surface features such that the BMG material interlocks with the interlock surface features of the substrate. The method includes joining a second substrate to the BMG material, wherein the second substrate includes interlock surface features such that the BMG material interlocks with the interlock surface features of both the first and second substrates, joining the first and second substrates together to produce a fully amorphous joint between the first and second substrates.

Method for Producing Plug

A method for producing a plug includes: a step of preparing a plug base metal having a concave portion along a circumferential direction in an outer peripheral surface; and an arc spraying step of spraying a spraying wire rod material onto the outer peripheral surface of the plug base metal by arc spraying to form films containing Fe and Fe oxides on the outer peripheral surface of the plug base metal. The arc spraying step includes: a separating step of separating the outer peripheral surface of the plug base metal into a plurality of regions along an axial direction; and a step of performing arc spraying separately in each of the regions. In the separating step, a boundary between the regions is set at the concave portion. In this way, peeling of films at a connecting portion is prevented, and the lifetime of the plug can be increased. 1. A method for producing a plug that is used in a piercing-rolling mill when producing a seamless steel pipe , the method comprising:a step of preparing a plug base metal having a concave portion along a circumferential direction in an outer peripheral surface, andan arc spraying step of spraying a spraying wire rod material onto the outer peripheral surface of the plug base metal by arc spraying to form films containing Fe and Fe oxides on the outer peripheral surface of the plug base metal;wherein:the arc spraying step includes:a separating step of separating the outer peripheral surface of the plug base metal into a plurality of regions along an axial direction, anda step of performing arc spraying separately in each of the regions; andin the separating step, a boundary between the regions is set at the concave portion.2. The method for producing a plug according to claim 1 , wherein:in the plug base metal, the outer peripheral surface is formed by connecting a plurality of divided faces successively in the axial direction, and has the concave portion at a joint between the divided faces; and{'b': 1', '2, 'claim-text': {'br': ...

CMAS RESISTANT THERMAL BARRIER COATINGS

The present application provides Calcia-Magnesia-Alumina-Silica (CMAS) (or molten silicate) resistant thermal barrier coatings (IBC). The coatings include elongate growth domains of non-equiaxed, randomly arranged overlapping grains or splats. The elongate growth domains include overlapping individual, randomly distributed splats of tough and soft phases. In some embodiments, the elongate growth domains are formed via air plasma spray. In some embodiments, the tough phases are at least partially stabilized zirconia and/or hafnia compositions, and the soft phases are CMAS (or molten silicate) reactive or resistant compositions. Within each elongate growth domain, the mixture of the tough and soft phases act together to limit penetration of CMAS and also provide sufficient domain toughness to minimize cracking forces produced during crystallization of infiltrated CMAS. The soft phases may react with the CMAS and increase its melting point, increase its viscosity, and reduce the destabilization of the tough phases. 119.-. (canceled)20. A method of forming a thermal barrier coating on a substrate , the method comprising:obtaining a substrate;obtaining a feedstock consisting of about micron or sub-micron ceramic particles of tough and soft phases suspended in a liquid agent, wherein the tough phases are at least one of partially stabilized zirconia compositions and partially stabilized hafnia compositions, and the soft phases are at least one of CMAS reactive compositions and CMAS resistant compositions; andutilizing an air plasma spray apparatus to heat and deposit the tough and soft phases of the feedstock on the substrate in randomly distributed overlapping splats that form a plurality of elongate material growth domains of at least about 75% density defined between domain boundaries.21. The method of claim 20 , wherein at least about 75% of the splats of the domains include a width to length aspect ratio of greater than or equal to about 3:1 and a substantially ...

METHOD FOR FORMING AN IMPROVED THERMAL BARRIER COATING (TBC), THERMAL-BARRIER-COATED ARTICLE AND METHOD FOR THE REPAIR THEREOF

The invention refers to a process for the formation of a thermal barrier coating on a substrate, comprising the steps of: 1102101. A method for forming a thermal barrier coating () on a substrate () , comprising the steps of:{'b': 103', '101, 'a) applying a bond coat () on said substrate ();'}{'b': 103', '103, 'b) subjecting said bond coat () to a low activity aluminizing process, thus obtaining a temporary intermediate diffusion layer on said bond coat ();'}characterized in that it comprises the steps ofc) applying on said temporary intermediate diffusion layer obtained from said phase b) aluminium powder in suspension with a solvent or aqueous base, said aluminium powder having a size distribution from 15 to 150 μm;{'sup': −', '−, 'b': 105', '103, 'd) carrying out a vacuum heat treatment on the substrate, bond coat and temporary intermediate diffusion layer as a whole, at a pressure from 103 to 105 bar, at a temperature from 800° C. to 1050° C. and with an active phase in the range of 60 min-4 h, thus obtaining an enriched intermediate diffusion layer () on said bond coat (); and'}{'b': 104', '105, 'e) applying a definitive barrier layer () on said enriched intermediate diffusion layer ().'}2. A method according to claim 1 , wherein said aluminium powder has a size distribution from 30 to 100 μm.3. A method according to claim 1 , wherein said step c) of applying said aluminium powder is repeated 1-4 times.4. A method according to claim 1 , wherein said step d) of heat treatment is carried out at a temperature from 850° C. to 1000° C.5. A method according to claim 1 , wherein said step d) of heat treatment has an active phase with a duration in the range of 90-180 min.6. A method according to claim 1 , wherein said step d) of heat treatment is repeatedly carried out 1-6 times.7100101102102. An article () comprising a substrate () and a thermal barrier coating () applied on said substrate claim 1 , characterized in that said thermal barrier coating () is formed by ...

Coatings for metallic substrates

Coatings for substrates, such as superalloy substrates, are provided. The coating can include: 15 wt % to 45 wt % cobalt; 20 wt % to 40 wt % chromium; 2 wt % to 15 wt % aluminum; 0.1 wt % to 1 wt % yttrium; and nickel. The coatings may include nickel, cobalt, chromium and aluminum, and other optional additives to improve oxidation and corrosion resistance of the substrate without significant debit to its mechanical properties.

PROCESS FOR FABRICATING AN AIRCRAFT PART COMPRISING A SUBSTRATE AND A SUBSTRATE COATING LAYER

A method of fabricating a part () comprising a metal substrate (Sub) at least partially covered in a coating layer (Rev). The method comprises: preparing (A) a surface of the substrate (Sub) to obtain a prepared surface of roughness Ra lying in the range 0.6 μm to 1.6 μm, and; forming (C) the coating layer (Rev) on the prepared surface of the substrate, this coating layer (Rev) being formed by spraying, using an HVOF type spraying method to spray a powder mixture containing grains (G) of metal carbide, the grains (G) having dimensions that are strictly less than 1 μm and the thickness (Epmin) of the coating layer (Rev) as formed in this way being less than 50 μm; then finishing at least one surface of said coating layer (Rev) by polishing (D) in such a manner as to ensure that its roughness Ra is less than 1.6 μm. 11. A method of fabricating a part () comprising a metal substrate (Sub) at least partially covered in a coating layer (Rev) , the method comprising:preparing (A) a surface of the substrate (Sub) for covering in order to obtain a prepared surface of roughness Ra lying in the range 0.6 μm to 1.6 μm, and preferably in the range 0.8 μm to 1.6 μm;forming (C) the coating layer (Rev) on the prepared surface of the substrate, this coating layer (Rev) being formed by spraying, using an HVOF type spraying method to spray a powder mixture containing grains (G) of metal carbide, the grains (G) having dimensions that are strictly less than 1 μm and the thickness (Ep min) of the coating layer (Rev) as formed in this way being less than 50 μm; thenfinishing at least one surface of said coating layer (Rev) by polishing (D) in such a manner as to ensure that its roughness Ra is less than 1.6 μm.2. A method according to claim 1 , wherein the preparation (A) of the substrate surface (Sub) for covering is performed by sand blasting.3. A method according to claim 1 , wherein the coating layer that is formed has thickness lying in the range 30 μm to 50 μm and the size of the ...

Composite coating material with amorphous-containing matrix

Provided in one embodiment is a method for producing a composition, the method comprising forming a coating material on a substrate using a first material and a second material; wherein the coating material comprises an amorphous alloy and the second material, the first material is adapted to form the amorphous alloy, the first material is at a first temperature during the forming process, and the first temperature is lower than a melting temperature of the second material.

Method for Locally Repairing Thermal Barriers

The invention relates to a method for repairing a thermal barrier of a component comprising a substrate coated with such a thermal barrier, said substrate being made of a high-performance alloy, said thermal barrier being adhered to the alloy and having lower thermal conductivity than the alloy, the thermal barrier including at least one ceramic, one region of the thermal barrier being a region to be repaired, wherein said method includes the following steps: a) defining the region to be repaired, using a mask which protects the other regions of the thermal barrier; b) injecting a carrier gas loaded with droplets of ceramic precursor into a plasma discharge inside a plasma chamber of a plasma reactor containing the component to be repaired, while making the concentration of ceramic precursor in the carrier gas dependent on at least one parameter of the reactor selected from among: the pressure of the plasma chamber, the power of the plasma generator and the diameter of the precursor droplets, in order to control the state—liquid, gel or solid—of the ceramic precursor having an effect on the region to be repaired; c) injecting a gas not loaded with ceramic precursor into a plasma discharge within the plasma chamber, steps b) and c) being repeated. 2. The method as claimed in claim 1 , in which said concentration increases at each iteration of step b) and said parameter decreases at each iteration of step b) to infiltrate delamination cracks of the thermal barrier and then fill the spalled surface zones of said region.3. The method as claimed in claim 1 , comprising a step of cleaning said region claim 1 , carried out in the plasma chamber prior to step a) claim 1 , comprising injection of a reducing gas into a plasma discharge.4. The method as claimed in claim 1 , comprising a step of preparing said region claim 1 , carried out in the plasma chamber prior to step a) claim 1 , comprising injection of an oxidizing gas into a plasma discharge.5. The method as claimed in ...

METHOD FOR MAKING HIGH LUBRICITY ABRADABLE MATERIAL AND ABRADABLE COATING

An abradable powder composition is includes a metal component, a lubricant component, and a polymer component. A portion of the metal component is wrapped in the lubricant component to achieve high lubricity and abradability. The abradable powder composition can be used to form an abradable seal coating provided for use in a turbo machinery having a housing and a wheel having multiple blades. The housing houses the wheel which rotates therein. The seal coating is formed on the inner walls of housing adjacent where the wheel blades pass during their rotation. When the wheel is rotated such that the blades contact the seal coating, it is abraded to form a close fit gap. The abradable seal coating preferably does not produce significant wear of the blade tips or transfer abradable material significantly to the blade tips upon being abraded. 1. An abradable powder composition comprising:a metal component,a lubricant component, anda polymer component,wherein a portion of said metal component is wrapped in said lubricant component, and wherein another portion of said metal component is free of said lubricant component.2. The abradable powder composition of claim 1 , wherein at least 20% by weight of said metal component is wrapped in said lubricant component.3. The abradable powder composition of claim 1 , wherein said metal component is at least 50% by weight of the abradable powder composition.4. The abradable powder composition of claim 3 , wherein said metal component is aluminum or an aluminum alloy.5. The abradable powder composition of claim 4 , wherein the metal component is aluminum particles or aluminum alloy particles claim 4 , wherein at least 20% by weight of said aluminum particles or aluminum alloy particles are wrapped in said lubricant component and have less than 30% by surface area of exposed aluminum particles or aluminum alloy particles.6. The abradable powder composition of claim 4 , wherein said metal component is an aluminum alloy comprising ...

Abradable Seal Composition for Turbomachine Compressor

A composition for an abradable seal for a turbomachine, in particular in powder form, is able to crumble in the event of contact with a rotor of said turbomachine. The seal is formed on the arcuate wall of a substrate casing. The composition includes a majority metallic phase with a majority by mass of aluminium with some chromium, a minority second phase including a mineral material and/or an organic material. 1. Composition for an abradable seal for a turbomachine , said seal being able to crumble in the event of contact with a rotor of said turbomachine , the composition comprising:a metallic phase with a majority by mass of aluminium; and a mineral material; and/or', 'an organic material;, 'a second phase comprisingwherein the metallic phase further comprises chromium and nickel, the metallic phase comprising, by mass, more chromium than nickel.2. Composition according to claim 1 , wherein the metallic phase comprises:by mass, between 20% and 45% of chromium.3. Composition according to claim 1 , wherein the organic material comprises polyester and the mineral material comprises hexagonal boron nitride.4. Composition according to claim 1 , wherein the metallic phase represents between 50% and 90% of the mass of the composition.5. Composition according to claim 1 , wherein the metallic phase represents between 82% and 90% of the mass of the composition.6. Composition according to claim 1 , wherein the second phase constitutes between 10% and 50% of the mass of the composition.7. Composition according to claim 1 , wherein the second phase constitutes between 10% and 25% of the mass of the composition.8. Composition according to claim 1 , wherein the second phase comprises at least one of the following materials:polyimide, polyamideimide, polyetherimide, bismaleimide, fluoroplastic, a ketone-based resin, liquid crystals of polymers, or any combinations thereof.9. Composition according to claim 1 , wherein the second phase comprises at least one of the following ...

SELF-HEALING COATINGS FOR OIL AND GAS APPLICATIONS

A coated article comprises a substrate and a self-healing coating disposed on a surface of the substrate, the self-healing coating comprising a metallic matrix; and a plurality of micro- or nano-sized particles dispersed in the metallic matrix; the micro- or nano-sized particles comprising an active agent disposed in a carrier comprising a micro- or nano-sized metallic container, a layered structure, a porous structure, or a combination comprising at least one of the foregoing. 1. A coated article comprising:a substrate; anda self-healing coating disposed on a surface of the substrate; a metallic matrix; and', 'a plurality of micro- or nano-sized particles dispersed in the metallic matrix;, 'the self-healing coating comprising'}the micro- or nano-sized particles comprising an active agent disposed in a carrier comprising a micro- or nano-sized metallic container, a layered structure, a porous structure, or a combination comprising at least one of the foregoing.2. The coated article of claim 1 , wherein the micro- or nano-sized particles have a core-shell structure comprising an active agent encapsulated in a micro- or nano-sized metallic container.3. The coated article of claim 2 , wherein the metallic container comprises Fe claim 2 , Zn claim 2 , Ni claim 2 , Cu claim 2 , Ag claim 2 , Au claim 2 , W claim 2 , Ti claim 2 , Co claim 2 , Al claim 2 , Mg claim 2 , Cr claim 2 , Mo claim 2 , alloys thereof claim 2 , or a combination comprising at least one of the foregoing.4. The coated article of claim 1 , wherein the micro- or nano-sized particles comprise an active agent intercalated between layers of a material having a layered structure.5. The coated article of claim 4 , wherein the material having a layered structure comprises a hydrotalcite claim 4 , nanoclay claim 4 , zeolite claim 4 , metal organic frameworks (MOF) claim 4 , an oxide layered material claim 4 , or a combination comprising at least one of the foregoing.6. The coated article of claim 1 , wherein ...

Methods, apparatus, computer programs, and non-transitory computer readable storage mediums for repairing aerofoils of gas turbine engines

Methods, apparatus, computer programs, and non-transitory computer readable storage mediums for repairing an aerofoil of a gas turbine engine A method of repairing an aerofoil of a gas turbine engine, the method comprising: controlling machining of at least one of: a first aerofoil and a second aerofoil; the machining causing an increase in a throat area defined by the first aerofoil, the second aerofoil, a first platform and a second platform, the first aerofoil and the second aerofoil being arranged to couple to the first platform and to the second platform; and controlling provision of a coating to at least one of the first platform and the second platform subsequent to controlling machining to reduce the throat area.

MATERIAL FOR THERMAL SPRAYING AND PRODUCTION METHOD THEREOF, METHOD FOR THERMAL SPRAYING, AND PRODUCT OF THERMAL SPRAYING

Thermal spraying may be readily carried out using fine particles which were difficult to be handled in the conventional art by using particles of a resin containing the fine particles of a ceramic or a metal as a material for thermal spraying. To produce a material for thermal spraying, the fine particles are dispersed in a liquid resin, and a cured material obtained by curing the mixture is pulverized to obtain a material for thermal spraying which contains particles having a particle diameter within a target particle diameter range, and these operations are repeated. In the second or later time production of a material for thermal spraying, over-pulverized particles which were obtained in a completed pulverization step of a cured material and have a particle diameter below the target particle diameter range are also added to a liquid resin and are disperse in the step for dispersing fine particles in a liquid resin. Accordingly, the yield rate of a material for thermal spraying produced from the fine particles and the resin may be improved by recycling the over-pulverized particles which are too small to be used as a material for thermal spraying in a next time or later production of a material for thermal spraying. 1. A method for producing a material for thermal spraying , used for plasma thermal spraying , flame thermal spraying , or laser thermal spraying , the method comprising the steps of:a) dispersing fine particles of a ceramic or a metal in a liquid resin;b) pulverizing a cured material from a mixture obtained in the step a) to obtain a material for thermal spraying having a particle diameter which is larger than that of the fine particles and is within a predetermined target particle diameter range; andc) repeating the step a) and step b),wherein over-pulverized particles having a particle diameter below the target particle diameter range obtained when the cured material is pulverized in a completed step b) are also added to the liquid resin and are ...

METHOD FOR MANUFACTURING A BRAKE DISC AND BRAKE DISC FOR DISC BRAKES

A method for manufacturing a brake disc may have the following operating steps: a) preparing a brake disc, with a braking band and provided with two mutually opposite braking surfaces; b) depositing on the disc a layer of chromium carbide (Cr3C2) and nickel-chromium (NiCr) in particulate form forming a base protective coating; and c) depositing over the base protective coating a material in particulate form with the tungsten carbide (WC) and cobalt (Co) forming a surface protective coating. Both protective coatings are created with HVOF (High Velocity Oxygen Fuel), HVAF (High Velocity Air Fuel) or KM (Kinetic Metallisation) technique. 118-. (canceled)19. A method for manufacturing a brake disc comprising the following operating steps:a) preparing a brake disc, comprising a braking band and provided with two mutually opposite braking surfaces, each of which defines at least partially one of the two main faces of the disc, the braking band being made of aluminium or aluminium alloy, or being made of grey cast iron or steel;b) depositing on the disc a layer of chromium carbide (Cr3C2) and nickel-chromium (NiCr) in particulate form with HVOF (High Velocity Oxygen Fuel) technique, HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallisation) technique forming a base protective coating that covers at least one of the two braking surfaces of the braking band in direct contact with them; andc) depositing over said base protective coating a material in particulate form consisting of tungsten carbide (WC) and cobalt (Co) with HVOF (High Velocity Oxygen Fuel) technique, HVAF (High Velocity Air Fuel) technique or KM (Kinetic Metallisation) technique forming a surface protective coating that covers at least one of the two braking surfaces of the braking band.20. The method according to claim 19 , wherein the material in particulate form deposited in deposition step b) to create the base protective coating is constituted by 65% to 95% of chromium carbide (Cr3C2) and the ...

METHOD OF APPLYING A COATING TO A PERFORATED SUBSTRATE

The present invention provides a method of applying a coating to a perforated substrate, the method comprising: (a) providing a perforated substrate having a substrate first surface, a substrate second surface and one or more perforations traversing the substrate from the first surface to the second surface; (b) bringing the substrate first surface into contact with a perforation blocking solid; (c) applying a metallic thermal spray coating composition to the substrate second surface using a thermal spray technique; and (d) separating the perforation blocking solid from the substrate first surface to provide a substrate having a metallic thermal spray coating disposed upon the substrate second surface and wherein the perforations are not occluded by the metallic thermal spray coating. Among its many other uses, the method is also useful for applying thermal spray coatings to the interior surface of valve cages used in flow control valves. 1. A method of applying a coating to a perforated substrate , the method comprising:(a) providing a perforated substrate having a substrate first surface, a substrate second surface and one or more perforations traversing the substrate from the first surface to the second surface;(b) bringing the substrate first surface into contact with a perforation blocking solid;(c) applying a metallic thermal spray coating composition to the substrate second surface using a thermal spray technique; and(d) separating the perforation blocking solid from the substrate first surface to provide a substrate having a metallic thermal spray coating disposed upon the substrate second surface and wherein the perforations are not occluded by the metallic thermal spray coating.2. The method according to claim 1 , wherein the perforated substrate is a metallic substrate.3. The method according to claim 1 , wherein the substrate first surface and the substrate second surface are substantially parallel surfaces.4. The method according to claim 1 , wherein ...

ROLLING BODY, METHOD FOR PRODUCING ROLLING BODY, AND DYNAMIC FORCE TRANSMISSION DEVICE

A high durability roller, a manufacturing method thereof and a power transmission device with the high durability roller are provided. The roller for a power transmission device that comprises a plurality of rollers in contact with each other directly or with lubricant between them, includes: a metal base having a Young's modulus of 220 GPa or less; and a coating that is formed on a surface of the metal base, includes hard particles and a metal component composed of at least either simple metal or alloy, and has a Young's modulus of 250 GPa or more. The power transmission device includes the roller. The method of manufacturing the roller includes: forming the coating on the surface of the metal base by thermal spraying using a thermal spray material that comprises the hard particles and the metal component composed of at least either simple metal or alloy. 1. A roller for a power transmission device that comprises a plurality of rollers in contact with each other directly or with lubricant between them , comprising:a metal base having a Young's modulus of 220 GPa or less; anda coating that is formed on a surface of the metal base, comprises hard particles and a metal component composed of at least either simple metal or alloy, and has a Young's modulus of 250 GPa or more.2. The roller according to claim 1 , wherein the roller has an equivalent Young's modulus of 350 GPa or less.3. The roller according to claim 1 , wherein the coating has a sectional porosity of 5 vol % or less.4. The roller according to claim 1 , wherein the hard particles are hard particles of at least one selected from a group consisting of carbides claim 1 , borates claim 1 , nitrides claim 1 , silicates claim 1 , sulfides claim 1 , oxides and carbon.5. The roller according to claim 1 , wherein the hard particles are hard particles of tungsten carbide.6. The roller according to claim 5 , wherein the coating comprises an η phase.7. A power transmission device claim 1 , comprising the roller ...

LOW PERMEABILITY HIGH PRESSURE COMPRESSOR ABRADABLE SEAL FOR BARE Ni AIRFOILS HAVING CONTINUOUS METAL MATRIX

An air seal in a gas turbine engine comprising a substrate. A bond coating layer is adhered to the substrate. An abradable layer is adhered to the bond coating layer. The abradable layer comprises a metal matrix discontinuously filled with a soft ceramic material. 17-. (canceled)8. A gas turbine engine comprising:a first structure;a second structure rotating relative to the first structure, wherein one of the first structure and second structure comprises a substrate; andan abradable layer adhered to the substrate, the abradable layer comprising a metal matrix discontinuously filled with soft ceramic material clad with a metal, wherein the metal cladding comprises multiple discrete elemental layers.9. The gas turbine engine of claim 8 , wherein the substrate is an outer case claim 8 , and the other rotating structure is a blade tip claim 8 , wherein the blade tip is arranged adjacent the outer case without any intervening claim 8 , separable seal structure.10. The gas turbine engine of claim 9 , wherein the metal matrix is discontinuously filled with a hexagonal boron nitride agglomerate.11. The gas turbine engine of claim 8 , wherein said metal matrix is discontinuously filled with a soft phase material.12. The gas turbine engine of claim 8 , further comprising:a bond coating layer adhered to the substrate; andsaid abradable layer adhered to said bond coating layer.13. A method of manufacturing a gas turbine engine air seal comprising:depositing an abradable coating onto a substrate, including cladding soft ceramic material particles with a metallic alloy, wherein the metal cladding comprises multiple discrete elemental layers and consolidating the clad boron nitride particles.14. The method of manufacturing a gas turbine engine air seal of further comprising:plasma spraying the abradable coating onto the substrate.15. The method of manufacturing a gas turbine engine air seal of wherein said depositing said abradable coating onto a substrate includes at least one ...

MULTISTAGE JOINING PROCESS WITH THERMAL SPRAYED LAYERS

Method for joining of at least two unweldable materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration, where a two step sequence is used consisting of a first step to apply a thermomechanical or mechanical surface protection layer on the surface of an unweldable material and a second step, where a thermal joining process is used to joint the sprayed layer with an applied layer sheet. 1. Method for joining of at least two unweldable materials , non-weldable directly to each other with thermal joining processes in a lap joint configuration ,{'b': 1', '2', '3, 'characterized in that a two step sequence is used consisting of a first step to apply a thermomechanical or mechanical surface protection layer on the surface of an unweldable material () and a second step, where a thermal joining process is used to joint the sprayed layer () with an applied layer sheet ().'}2. Method according to the claim 1 , characterized in that the surface protection layer is carried out by a thermal spraying method.3. Method according to claim 1 , characterized in that{'b': '2', 'the thermal sprayed layer () is metal based alloy or a combination of metal with carbides.'}4. Method according to claim 1 , characterized in that{'b': 2', '3, 'the thermal sprayed layer () is welded with the applied sheet () by a resistance welding method like weldbonding, spot welding, projection welding or roller seam welding.'}5. Method according to claim 1 , characterized in that{'b': 2', '4, 'the ratio of the thermal sprayed layer () thickness to the reached spot weld () diameter is lower or equal to 0.25 mm.'}6123. Method according to claim 1 , characterized in that the total sheet thickness including substrate () claim 1 , thermal sprayed layer () claim 1 , applied sheet () claim 1 , is between 1.5 mm up to 6.0 mm.7. Method according to claim 1 , characterized in that{'b': 2', '0, 'the thickness of the thermal sprayed layer () is from .25 mm up to 1.5 mm ...

Powder manufacturing apparatus and anode active material for secondary battery manufactured by the apparatus

Provided is an apparatus for manufacturing a powder alloy used as an anode active material of a secondary battery. The apparatus includes a nozzle unit for melting and spraying an alloy, a cooling unit for cooling down the alloy sprayed from the nozzle unit, a grinding unit for grinding the alloy cooled by the cooling unit, and a first chamber accommodating the nozzle unit, the cooling unit, and the grinding unit, and maintained to be a vacuum state.

COMPONENT FOR PLASMA PROCESSING APPARATUS, AND MANUFACTURING METHOD THEREFOR

Particle generation can be suppressed from a thermally sprayed film of yttrium fluoride. A component exposed to plasma in a plasma processing apparatus is provided. The component includes a base and a film. The base is made of aluminum or an aluminum alloy, and an alumite film may be formed on a surface of the base. The film is formed by thermally spraying yttrium fluoride on a surface of the base or on a surface of an underlying layer including a layer provided on the base. A porosity of the film is 4% or less, and an arithmetic mean roughness of a surface of the film is 4.5 μm or less. 1. A component for a plasma processing apparatus , comprising:a base; anda film formed by thermally spraying yttrium fluoride onto a surface of the base or on a surface of an underlying layer including a layer provided on the base,wherein a porosity of the film is 4% or less, andan arithmetic mean roughness of a surface of the film is 4.5 μm or less.2. The component of claim 1 , further comprising:a first intermediate layer which is made of an yttrium oxide film formed by an atmospheric plasma spraying method, and is provided between the base and the film.3. The component of claim 2 ,wherein the film is not formed on a region including an edge of the first intermediate layer, but is formed on the first intermediate layer at an inner side than the region.4. The component of claim 2 , further comprising:a second intermediate layer provided between the first intermediate layer and the film.5. The component of claim 4 ,wherein the second intermediate layer has a linear expansion coefficient that falls between linear expansion coefficients of the first intermediate layer and the film.6. The component of claim 5 ,wherein the second intermediate layer is formed of a thermally sprayed film of forsterite or a thermally sprayed film of yttria-stabilized zirconia (YSZ) formed by the atmospheric plasma spraying method.7. The component of claim 5 ,wherein the second intermediate layer is made of ...

COATED COMPOSITES

A coated composite material comprising a composite substrate comprises a polymeric matrix with fibre reinforcement, a surface of the composite substrate being coated with a two-phase primer layer E and a coating layer A adhered to said outer surface of the two-phase primer layer E. The two-phase primer layer E comprises a reinforcing phase of material elements bound in a predefined distribution by a polymeric phase and at least partially exposed at an outer surface of the primer layer so as to provide a surface texture. 1. A coated composite material comprising:a composite substrate comprising a polymeric matrix with fibre reinforcement;a surface of the composite substrate being coated with:(i) a two-phase primer layer comprising a reinforcing phase of material elements bound in a predefined distribution by a polymeric phase and at least partially exposed at an outer surface of the primer layer so as to provide a surface texture; and(ii) a coating layer adhered to said outer surface of the two-phase primer layer.2. A coated composite material according to claim 1 , wherein the surface texture has a depth claim 1 , determined by the predefined distribution of the reinforcing phase claim 1 , that is chosen depending on the coating layer.3. A coated composite material according to claim 2 , wherein the surface texture is approximately homogenous across the outer surface of the two-phase primer layer.4. A coated composite material according to claim 3 , wherein the two-phase primer layer has a substantially constant thickness.5. A coated composite material according to claim 4 , wherein the reinforcing phase of material elements comprises fibrous elements.6. A coated composite material according to claim 1 , wherein the reinforcing phase of material elements comprises one or more plastic materials.7. A coated composite material according to claim 1 , wherein the polymeric phase comprises a film adhesive.8. A coated composite material according to claim 1 , wherein a ...

FINE GRAINED NI-BASED ALLOYS FOR RESISTANCE TO STRESS CORROSION CRACKING AND METHODS FOR THEIR DESIGN

A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process. 1. A method , comprising:welding a substrate to form a weld bead using a cored welding wire, the cored welding wire comprising a sheath comprising nickel and having a sheath melting temperature and a powder core disposed within the sheath;wherein the weld bead has a weld melting temperature at least 50° C. greater than the sheath melting temperature.2. The method of claim 1 , further comprising applying a welding pool to the substrate to form the weld bead claim 1 , the welding pool comprising a substrate dilution component and a weld component claim 1 , the weld component comprising:a balance of nickel;between approximately 20.5 and 30 wt. % chromium;between approximately 5.5 and 18.5 wt. % molybdenum;between 0 and approximately 1.75 wt. % boron;between 0 and approximately 3.5 wt. % silicon;between 0 and approximately 5 wt. % titanium;between 0 and approximately 17 wt. % niobium; andbetween 0 and approximately 15 wt. % tin.3. The method of claim 2 , wherein the sheath comprises:a balance of nickel;between approximately 20.5 and 30 wt. % chromium;between approximately 5.5 and 18.5 wt. % molybdenum;between 0 and approximately 1.75 wt. % boron;between 0 and approximately 3.5 wt. % silicon;between 0 and approximately 5 wt. % titanium;between 0 ...

Flux-cored welding wire and preparation method and use thereof, porous coating and preparation method thereof

The disclosure belongs to the technical field of surface coating, and particularly relates to a flux-cored welding wire, a preparation method and use thereof, a porous coating and a preparation method thereof. The disclosure provides a flux-cored welding wire, including a core wire and a sheath, where the core wire includes the following components by mass percentage: 15.0-30.0% of Cr, 1.5-2.5% of Si, 5.0-10.0% of Ni, 1.0-5.0% of TiH2, and Fe as balance; and the sheath is made of steel. Test results of examples show that, the porous coating obtained by supersonic arc spraying the flux-cored welding wire provided by the disclosure has a porosity of up to 46% and a coating adhesive strength of 45 MPa, which are desired.

SENSOR AND RFID HOUSING ENCLOSURE FOR THIN WALL COMPONENTS

Embodiments disclosed herein relate to the production of a housing enclosure designed for sensors or RFIDS to be attached to thin-walled components in the oil and gas industries being sent downhole during drilling and extraction. A metal-based coating, which may be crystalline, amorphous, or partially amorphous in structure, is deposited onto a substrate in layers via thermal spraying. The coating may then be machined so that an opening is created to receive the sensor or RFID. The coating may also provide other functions such as wear, corrosion or erosion protection to the thin-walled components applied. 1. A device comprising a substrate and a first layer on the substrate , the first layer comprising an amorphous metal alloy , the first layer having a sensor in an opening within the first layer , wherein the first layer (a) does not reduce hardness , strength and toughness of the substrate; (b) has a coefficient of friction that is lower than that of the substrate; and (c) does not change a signal strength of a signal emitted from the sensor by more than 50%.2. The device of claim 1 , wherein the substrate comprises a metal.3. The device of claim 1 , further comprising a second layer covering the opening.4. The device of claim 3 , wherein the second layer comprises a polymer.5. The device of claim 1 , wherein the device comprises a component for drilling.6. The device of claim 5 , wherein the component comprises a pipe.7. The device of claim 1 , wherein the amorphous metal alloy comprises F(XYZ) claim 1 , wherein the X and the Y are selected from the group consisting of tungsten claim 1 , molybdenum claim 1 , chromium claim 1 , niobium claim 1 , vanadium and combinations of tungsten claim 1 , molybdenum claim 1 , chromium claim 1 , niobium claim 1 , vanadium claim 1 , and titanium claim 1 , said X being present in the range of 10-50 at. % claim 1 , the Y is in the range of 10 to 30 at. % claim 1 , while the Z is selected from the group consisting of boron claim 1 ...

Friction adjustment interface between two parts made of nickel or nickel or cobalt-chromium alloy that are in relative motion against one another at high temperature

An adjustment interface inserted between a first part made of nickel or made of nickel alloy or made of cobalt-chromium alloy in relative motion with a second part made of nickel or made of nickel alloy or made of cobalt-chromium alloy. The interface includes a first adjustment layer on one of the two parts and has a composition that makes it possible, with the friction with the other part, to create a glaze-type layer. A second adjustment layer is deposited on the second part for cooperation with the first layer to act as a catalyst for the oxide formed by friction with the first layer. The first glaze layer of the interface improves the sliding of the parts under friction. The catalyst function provided by the second layer makes it possible to stabilize the oxide formed by friction and to thus ensure a lubrication function over an extended high-temperature range.

Thermal barrier coating spallation detection system

The present application thus provides a thermal barrier coating spallation detection system for a gas turbine. The thermal barrier coating spallation detection system may include a hot gas path component with a phosphor layer and a thermal barrier coating, a stimulant radiation source, and an optical device such that the optical device directs stimulant radiation at the thermal barrier coating and receives emission radiation. A change in the received emission radiation indicates spallation of the thermal barrier coating.

METHOD FOR MANUFACTURING AN ARTICLE

A method for manufacturing an article configured to enhance the coalescence of a dispersed phase from a continuous phase in an emulsion is presented. The method includes forming a pattern of a plurality of regions on a surface of the article, wherein a portion of the plurality of regions is substantially wetting with respect to the dispersed phase, and a portion of the plurality of regions is substantially non-wetting with respect to the dispersed phase. The pattern further includes a plurality of inter-connected regions that are substantially non-wetting with respect to the dispersed phase. 1. A method for manufacturing an article configured to enhance the coalescence of a dispersed phase from a continuous phase in an emulsion , comprising:forming a pattern of a plurality of regions on a surface of the article, wherein a portion of the plurality of regions is substantially wetting with respect to the dispersed phase, and a portion of the plurality of regions is substantially non-wetting with respect to the dispersed phase, andwherein the pattern comprises a plurality of inter-connected regions that are substantially non-wetting with respect to the dispersed phase.2. The method of claim 1 , wherein forming the pattern comprises:(i) providing the article comprising a surface that is substantially non-wetting with respect to the dispersed phase; and(ii) disposing the plurality of regions that are substantially wetting with respect to the dispersed phase on the surface.3. The method of claim 2 , wherein the step (i) comprises providing a textured hydrophilic surface.4. The method of claim 2 , wherein the step (i) comprises providing a textured superhydrophilic surface.5. The method of claim 4 , wherein the step (i) comprises plasma spray coating a ceramic composition on the surface.6. The method of claim 2 , wherein the step (ii) comprises stencil printing claim 2 , screen printing claim 2 , pad printing claim 2 , vapor deposition claim 2 , spraying claim 2 , or ...

DAMAGE MITIGATION FOR GEARBOX

A component of a rotary wing aircraft is provided including a surface configured to contact another component of the rotary wing aircraft such that the surface is susceptible to corrosion and/or pitting. The surface has an area from which a portion of material was removed. A structural deposit is formed by cold spraying one or more layers of powdered material within the area. The structural deposit is configured to carry a load applied to the component. 1. A component of a rotary wing aircraft comprising:a surface configured to contact another component of the rotary wing aircraft such that the surface is susceptible to corrosion, the surface having an area from which a portion of material was removed; anda structural deposit formed by cold spraying one or more layers of powdered material within the area, the structural deposit being configured to carry a load applied to the component.2. The component according to claim 1 , wherein the component is a gearbox housing.3. The component according to claim 1 , wherein the powdered material includes aluminum.4. The component according to claim 1 , wherein the material removed from the surface includes at least one of damage claim 1 , corrosion and pitting.5. The component according to claim 1 , wherein corrosion and/or pitting were likely to occur on the material removed from the surface.6. The component according to claim 1 , wherein the structural deposit is substantially flush with the surface.7. The component according to claim 1 , wherein the component including the structural deposit has a dimension substantially equal to an original dimension of the component.8. The component according to claim 1 , wherein a strength of the component including the structural deposit is near claim 1 , or in excess of an original strength of the component.9. A method of rebuilding a damaged portion of a surface of a component claim 1 , comprising the steps of:forming an area in the surface by removing all material exhibiting one or ...

CONSUMER ELECTRONICS PORT HAVING BULK AMORPHOUS ALLOY CORE AND A DUCTILE CLADDING

Disclosed herein are consumer electronics housings made from bulk-solidifying amorphous alloy materials having a ductile coating applied to all or a portion of the bulk-solidifying amorphous alloy. Also disclosed are methods of making consumer electronic housings from bulk-solidifying amorphous alloy materials such that at least a portion of the bulk-solidifying amorphous alloy housing is coated with a ductile cladding material. 1. A consumer electronics device comprising:a housing including at least a bulk-solidifying amorphous alloy, the housing having at least one input/output port or jack; anda ductile coating at least over the bulk-solidifying amorphous alloy adjacent the at least one input/output port or jack.2. The consumer electronics device as claimed in claim 1 , wherein the ductile coating at least partially surrounds the at least one input/output port or jack.3. The consumer electronics device as claimed in claim 2 , wherein the ductile coating completely surrounds the at least one input/output port or jack.4. The consumer electronics device as claimed in claim 1 , wherein the ductile coating is selected from a metal claim 1 , a metal alloy claim 1 , a plastic claim 1 , a rubber claim 1 , and mixtures thereof.5. The consumer electronics device as claimed in claim 4 , wherein the ductile coating is at least one material selected from the group consisting of tantalum claim 4 , niobium claim 4 , molybdenum claim 4 , iridium claim 4 , rhodium claim 4 , titanium claim 4 , hafnium claim 4 , zirconium claim 4 , magnesium claim 4 , rhenium claim 4 , tungsten claim 4 , gold claim 4 , silver claim 4 , platinum claim 4 , iron claim 4 , nickel claim 4 , copper claim 4 , aluminum claim 4 , zinc claim 4 , tin claim 4 , lead claim 4 , and alloys and mixtures thereof.6. The consumer electronics device as claimed in claim 4 , wherein the ductile coating is at least one polymeric material selected from the group consisting of polyolefins claim 4 , rubbers claim 4 , ...

METHOD OF PRODUCING PLUG FOR PIERCING-ROLLING

A method for producing a plug for use in a piercing rolling mill for producing a seamless steel tube/pipe includes an arc-spraying step of melting iron wires, and spraying molten material thereof onto a surface of a base metal of a plug by use of an arc-spray gun, so as to form a film containing oxide and Fe on the surface of the base metal of the plug. In the arc-spraying step, the surface of the base metal of the plug is divided into plural sections along an axial direction of the plug, and in turn, the arc-spraying is separately carried out in each of the plural sections while an intersection angle between the center line of a spraying stream from the arc-spray gun and the surface of the plug base metal is maintained within a range of 35 degrees to 90 degrees. 1. A method for producing a plug for use in a piercing-rolling mill for producing a seamless steel tube/pipe , the method comprising:an arc-spraying step of melting iron wires, and spraying molten material thereof onto a surface of a base metal of a plug by use of an arc-spray gun, so as to form a film containing oxide and Fe on the surface of the base metal of the plug, whereinin the arc-spraying step, the surface of the base metal of the plug is divided into plural sections along an axial direction of the plug, and in turn, the arc-spraying is separately carried out in each of the plural sections while an intersection angle between the center line of a spraying stream from the arc-spray gun and the surface of the plug base metal is maintained within a range of 35 degrees to 90 degrees.2. The method for producing a plug for piercing-rolling according to claim 1 , whereinthe plug has a bullet shape, and includes a body portion and a tip end portion, whilethe plural sections comprise a region of the body portion and a region of the tip end portion. The present invention relates to a method for producing a plug for piercing-rolling for use in a piercing-rolling mill (hereinafter, also referred to simply as a ...

METHOD OF FORMING A MULTILAYERED COATING FOR IMPROVED EROSION RESISTANCE

A method of applying a coating system to a substrate includes applying a first layer of a high hardness and high modulus of elasticity with an added metal to the substrate, applying a second layer of the high hardness and high modulus of elasticity in combination with the added metal to the first layer. A percent by volume of the added metal in the second layer is lower than the percent by volume of the added metal in the first layer. The method also includes applying two or more intermediate layers formed from an applied mixture of the high hardness, high modulus of elasticity material and a metal material between the first layer and the second layer. 1. A method of applying a coating system to a substrate comprising:applying a first layer of a high hardness and high modulus of elasticity with an added metal to the substrate;applying a second layer of the high hardness and high modulus of elasticity in combination with the added metal to the first layer, wherein a percent by volume of the added metal in the second layer is lower than the percent by volume of the added metal in the first layer;applying two or more intermediate layers formed from an applied mixture of the high hardness, high modulus of elasticity material and a metal material between the first layer and the second layer, wherein a percent by volume of the metal material in one of the two or more coating layers closest to the substrate is greater than a percent by volume of the metal material in another of the two or more coating layers farther from the substrate, the coating system having a modulus of elasticity and hardness which increases from the first layer to the second layer.2. The method of claim 1 , further comprising diffusing a transition between adjacent layers of the coating system thus resulting in a gradual transition of elastic modulus and hardness through a thickness of the coating.3. The method of claim 2 , wherein the diffusion is accomplished via heat treatment process that ...

REPAIRABLE SLIDING PLATE OF PANTOGRAPH OF ELECTRIC LOCOMOTIVE AND METHOD FOR MAKING THE SAME

The present disclosure relates to a novel high-performance repairable sliding plate of a pantograph of an electric locomotive and a manufacturing method thereof. The sliding plate includes a monometallic substrate and a conductive, wear-resistant, anticorrosion and self-lubricating coating integrated with the substrate. The coating is formed by plasma spraying Cu—TiOcore-shell composite powder on the monometallic substrate directly, and includes the following components by mass percent: 60-70% of TiO, 15-25% of Cu, 10-15% of TiOand 5-10% of TiO, where 5≤x≤10. The multifunctional composite coating is the working layer of the sliding plate of the present disclosure, and the damage of the coating can be repaired by plasma spraying with the composite powder, thereby recovering dimensional accuracy and service performance. 1. A repairable sliding plate of a pantograph of an electronic locomotive , comprising:a seat;a substrate mounted on the seat; and{'sub': n', '2n-1, 'a Cu—TiOcomposite coating formed on a surface of the substrate, wherein 4≤n≤10.'}2. The sliding plate according to claim 1 , wherein the Cu—TiOcomposite coating comprises the following components by mass percent: 60 wt %-70 wt % of TiO claim 1 , 15 wt %-25 wt % of Cu claim 1 , 10 wt %-15 wt % of TiOand 5 wt %-10 wt % of TiO claim 1 , and wherein 5≤x≤10.3. The sliding plate according to claim 1 , wherein the substrate is a monometallic substrate.4. The sliding plate according to claim 3 , wherein the monometallic substrate is made from copper or iron.5. A method for making the sliding plate according to claim 1 , comprising:{'sub': '2', 'preparing a composite coating on a surface of a substrate through plasma spraying with Cu—TiOcore-shell composite powder; and'}mounting the substrate coated with the composite coating on a seat.6. The method according to claim 5 , wherein the Cu—TiOcore-shell composite powder is prepared by ultrasonic dispersion and spray drying according to the flowing steps:{'sub': '2', ...

Method for preparing a protective coating on a surface of key components and parts of IC devices based on plasma spraying technology and cold spraying technology

Through the plasma spraying technology and the cold spraying high-speed deposition technology, an evenly distributed protective coating is formed on the surface of a plasma etching chamber. The protective coating, having a double-layer composite structure, includes a metal+YOcoating as a metal+YOtransition layer deposited by plasma spraying as a lower layer of the double-layer composite structure, and a high-purity YOceramic coating coated on the metal+YOtransition layer as an upper layer of the double-layer composite structure, the metal+YOtransition layer is configured to reduce the difference in expansion coefficient between the YOceramic coating and the metal substrate, and enhance the bonding force between the YOceramic coating and the metal substrate; the high-purity YOceramic coating is formed by depositing YOceramic powders on the metal+YOtransition layer at high speed through cold spraying high-speed deposition. 1. A method for preparing a protective coating on a surface of key components and parts of an IC (integrated circuit) device based on plasma spraying technology and cold spraying technology , wherein:the method adopts the plasma spraying technology and cold spraying high-speed deposition technology to form an evenly distributed protective coating on a surface of a plasma etching chamber of the IC device;{'sub': 2', '3', '2', '3', '2', '3', '2', '3', '2', '3', '2', '3, 'the protective coating, having a double-layer composite structure, comprises a metal+YOtransition layer deposited by plasma spraying as a lower layer of the double-layer composite structure, and a high-purity YOceramic coating coated on the metal+YOtransition layer as an upper layer of the double-layer composite structure, the high-purity YOceramic coating is formed by depositing YOceramic powders on the metal+YOtransition layer at high speed through cold spraying high-speed deposition;'}{'sub': 2', '3', '2', '3', '2', '3', '2', '3', '2', '3, 'the method comprises steps of drying ...

Steel Part and Method for Manufacturing the Same

A plurality of layers are laminated on at least part of the member under treatment made of steel, the plurality of layers having carbon concentrations higher than that of the member under treatment and 1.0 wt. % or less, the carbon concentration of an outermost layer of the plurality of layers being the highest. A method for manufacturing a steel part, including spraying powder containing carbon on at least part of an member under treatment made of steel so as to form a first layer having a carbon concentration higher than that of the member under treatment and spraying powder containing carbon on at least part of the first layer so as to form a second layer having a carbon concentration higher than that of the first layer. Carbon concentrations of a plurality of layers including the first layer and the second layer are 1.0 wt. % or less. 1. A steel part having a member under treatment made of steel , a plurality of layers being laminated on at least part of the member under treatment , the plurality of layers having carbon concentrations higher than that of the member under treatment and 1.0 wt. % or less , the carbon concentration of an outermost layer of the plurality of layers being the highest.2. The steel part according to claim 1 ,wherein the plurality of layers are three layers or more.3. The steel part according to claim 1 ,wherein the member under treatment has an area in which the plurality of layers are laminated and an area in which the plurality of layers are not laminated.4. The steel part according to claim 1 ,wherein the plurality of layers includes a first layer and a second layer laminated successively on the member under treatment, the first layer having an area in which the second layer is laminated and an area in which the second layer is not laminated.5. A method for manufacturing a steel part claim 1 , comprising:spraying powder containing carbon on at least part of an member under treatment made of steel so as to form a first layer having a ...

METHOD OF MANUFACTURING POWER CABLES AND RELATED POWER CABLE

A method for manufacturing an electrical cable includes providing at least one core including an electrical conductor, and arranging at least one copper sheath around the at least one core. The arranging of the copper sheath includes providing at least one foil of copper having two opposite first edges; bending the foil of copper around the core until the first edges of the foil of copper are contacted with each other; welding the first edges of the foil of copper to each other to form a corresponding solder jointwelded joint; and deposing a copper coating on at least portions of the surface of the foil of copper at the welded joint. The deposing the copper coating is carried out by means of a thermal spray process. 112-. (canceled)13. A method for manufacturing a power cable comprising:providing at least one core comprising an electrical conductor;arranging at least one copper sheath around the at least one core, said arranging the copper sheath comprising:providing at least one copper foil having two opposite first edges;bending the copper foil around the core until the first edges of the copper foil are contacted to each other;welding the first edges of the copper foil to each other to form a corresponding welded joint; anddeposing a copper coating on copper foil at the welded joint, wherein said deposing the copper coating is carried out by a thermal spray process.14. The method of claim 13 , wherein said deposing the copper coating is carried out by a thermal spray process selected from flame spray and cold spray processes.15. The method of claim 14 , wherein the flame spray process is selected from flare powder spray and high-velocity oxyfuel spray.16. The method of claim 14 , wherein said deposing the copper coating is carried out by cold spray process.17. The method of claim 15 , further comprising claim 15 , after welding the first edges and before deposing the copper coating:roughening copper foil at substantially the welded joint.18. The method of claim ...

PLASMA RESISTANT COATING FILM AND FABRICATING METHOD THEREOF

The present disclosure relates to a plasma resistant coating film and a fabricating method thereof, more particularly a plasma resistant coating film and a fabricating method thereof which can secure chemical resistance by means of, after thermally spraying the first rare earth metal compound, double sealing through aerosol deposition and hydration, thereby minimizing open channels and open pores in the coating layer and plasma corrosion resistance by means of the dense rare earth metal compound coating film. 1. A fabricating method of a plasma resistant coating film , comprising:(a) a step of forming a first rare earth metal compound layer by thermally spraying a first rare earth metal compound on an object of coating;(b) a step of forming a second rare earth metal compound layer by aerosol-depositing a second rare earth metal compound on the formed first rare earth metal compound layer; and(c) a step of hydrating the formed first and second rare earth metal compounds2. The fabricating method of a plasma resistant coating film of claim 1 , wherein the first rare earth metal compound is one or more species selected from a group of YO claim 1 , DyO claim 1 , ErO claim 1 , SmO claim 1 , YAG claim 1 , YOF and YF.3. The fabricating method of a plasma resistant coating film of claim 1 , wherein the first rare earth metal compound layer has a thickness of 100 to 300 μm.4. The fabricating method of a plasma resistant coating film of claim 1 , wherein the step of (c) hydrating comprises:(i) a step of washing the formed first and second rare earth metal compound layers;(ii) a step of drying the washed first and second rare earth metal compound layers;(iii) a step of wetting the dried first and second rare earth metal compound layers; and(iv) a step of vacuum-baking the wet first and second rare earth metal compound layers.5. The fabricating method of a plasma resistant coating film of claim 4 , wherein the wetting treatment is performed at 60 to 120° C. for 1 to 48 hours.6. ...

ROAD FINISHER, TAMPER BAR FOR A ROAD FINISHER, AND METHOD FOR MANUFACTURING A TAMPER BAR

A road finisher comprising a screed plate extending at right angles to the working direction of the road finisher, and a tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is present, which is configured so as to heat up a heating surface facing a road subsurface, and wherein the heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, wherein the tamper bar is made from two parts with an upper tamper bar member and a lower tamper bar member assembled together. Further, a tamper bar for a road finisher and a method of manufacturing a tamper bar are provided. 1. A road finisher , comprising:a screed plate extending at right angles to the working direction of the road finisher; anda tamper bar disposed rearwardly and/or forwardly of the screed plate in the working direction, wherein at least one electrically operated heating element is present, which is configured to heat up a heating surface facing a road subsurface, and wherein the heating element comprises a heating layer at least partially obtained through thermal spraying onto a substrate surface, wherein the tamper bar is made from two parts with an upper tamper bar member and a lower tamper bar member assembled together.2. The road finisher according to claim 1 , wherein the upper tamper bar member has a lower surface which claim 1 , in the assembled state claim 1 , contacts an upper surface of the lower tamper bar member claim 1 , wherein a groove is provided in either one of the lower surface of the upper tamper bar member or the upper surface of the lower tamper bar member.3. The road finisher according to claim 2 , wherein the heating layer claim 2 , which preferably is multilayered comprising at least an insulating layer claim 2 , a strip conductor claim 2 , and a sealing layer claim 2 , is accommodated in the groove.4. The road finisher ...

METHODS FOR THE FORMATION OF BETA ALUMINA ELECTROLYTES, AND RELATED STRUCTURES AND DEVICES

A method for preparing an electrolyte separator for an electrochemical device is described. The method includes the step of applying a beta″-alumina coating composition, or a precursor thereof, to a porous substrate, by an atmospheric, thermal spray technique. An electrochemical device is also described. Some of these devices include an anode, a cathode, and an electrolyte separator disposed between the anode and the cathode. The separator includes a thermally-sprayed layer of beta″-alumina, disposed on a porous substrate. The electrochemical device can be used as an energy storage system, or for other types of end uses. 1. A method for preparing an electrolyte separator for an electrochemical device , comprising the step of applying a beta″-alumina (beta double prime alumina) coating composition , or a precursor thereof , to a porous substrate , by an atmospheric , thermal spray technique.2. The method of claim 1 , wherein the substrate comprises a metal or a ceramic material.3. The method of claim 2 , wherein the ceramic material is selected from the group consisting of alumina claim 2 , zirconia claim 2 , beta″-alumina claim 2 , nickel oxide claim 2 , rutile (TiO) claim 2 , and combinations thereof.4. The method of claim 2 , wherein the metal is selected from the group consisting of nickel claim 2 , chromium claim 2 , molybdenum claim 2 , stainless steel claim 2 , and combinations thereof.5. The method of claim 2 , wherein the substrate is characterized by a porosity of about 5% to about 70%.6. The method of claim 2 , wherein the substrate has an average pore size in the range of about 1 micron to about 30 microns.7. The method of claim 1 , wherein the coating composition comprises beta″-alumina claim 1 , in powder form.8. The method of claim 1 , wherein the precursors of beta″-alumina comprise a material selected from aluminum halide compounds claim 1 , aluminum halide-hydrate compounds claim 1 , boehmite claim 1 , sodium carbonate claim 1 , lithium hydroxide ...

ABRADABLE COMPOSITION AND SEAL OF AN AXIAL-FLOW TURBOMACHINE COMPRESSOR CASING

The invention relates to a composition for an abradable seal of a turbomachine, the composition comprising an aluminium base, nickel powder, polyester powder. The invention also relates to an outer casing of a low-pressure compressor of an axial-flow turbomachine with an abradable seal surrounding an annular row of rotor blades. The seal comprises a rounded support covered with a layer of abradable material comprising a metallic phase mainly made of aluminium and with nickel in a lesser proportion. The abradable material additionally comprises from 25% to 55% of additive, such as polyester, methyl methacrylate, hexagonal boron nitride, calcium fluoride. The support is segmented, and forms an organic matrix composite outer casing of the compressor. The invention also proposes a process for producing an abradable seal by plasma spraying an Al—Ni-polyester powder. 1. A composition for an abradable coating of a seal of an axial-flow turbomachine , the composition for applying to a rounded support by plasma spraying , said composition comprising:metal comprising aluminium and nickel; anda filler.2. The composition in accordance with claim 1 , wherein the metal comprises claim 1 , by weight claim 1 , between 20% and 45% of nickel.3. The composition in accordance with claim 1 , wherein the metal comprises claim 1 , by weight claim 1 , between 55% and 80% of aluminium.4. The composition in accordance with claim 1 , wherein the metal comprises claim 1 , by weight claim 1 , between 5% and 50% of filler.5. The composition in accordance with claim 1 , wherein at least one of the aluminium claim 1 , the nickel and the filler is a powder.6. The composition in accordance with claim 1 , wherein the filler is mineral filler.7. The composition in accordance with claim 1 , wherein the filler is a polymer selected from the group consisting of polyester claim 1 , methyl methacrylate claim 1 , hexagonal boron nitride claim 1 , and calcium fluoride.8. A turbomachine comprising:a rotor;a ...

Spray Coating Film, Engine Having the Spray Coating Film and Film-Forming Method of the Spray Coating Film

A spray coating film has a first spray coating film formed on a surface of an aluminum substrate and a second spray coating film formed on a surface of the first spray coating film. In the first spray coating film, an inorganic material with a layered crystalline structure is dispersed in a Ni-based alloy material, and an area ratio of the inorganic material is in a range from 40% to 80% relative to the sectional area of the first spray coating film. The second spray coating film is a porous film composed of ZrO-SiObased ceramic containing 30% to 50% by mass of SiO, and the second spray coating film has an area ratio of pores of 30% to 80% relative to the sectional area of the second spray coating film. 1. A spray coating film comprising:a first spray coating film formed on a surface of an aluminum substrate; anda second spray coating film formed on a surface of the first spray coating film,wherein, in the first spray coating film, an inorganic material with a layered crystalline structure is dispersed in a Ni-based alloy material, and an area ratio of the inorganic material is in a range of from 40% to 80% relative to a sectional area of the first spray coating film, and{'sub': 2', '2', '2, 'wherein the second spray coating film is a porous film composed of ZrO—SiObased ceramic containing 30% to 50% by mass of SiO, and the second spray coating film has an area ratio of pores of 30% to 80% relative to a sectional area of the second spray coating film.'}2. The spray coating film according to claim 1 , wherein the inorganic material with a layered crystalline structure is composed of at least one selected from a group consisting of bentonite claim 1 , graphite claim 1 , mica and boron nitride.3. An engine having the spray coating film according to claim 1 , wherein the engine has a cylinder head as the aluminum substrate claim 1 , and the spray coating film is formed on a wall surface of the cylinder head that forms a combustion chamber.4. A film-forming method of a ...

NEAR NETSHAPE ADDITIVE MANUFACTURING USING LOW TEMPERATURE PLASMA JETS

A system comprises an apparatus having a nozzle. An element is arranged around the apparatus. A feeder is configured to supply a powder of a material into the apparatus. A gas source is configured to supply a precursor gas into the apparatus and to supply an inert gas to circulate through a space between the element and the apparatus and to exit around the nozzle. A plasma generator is arranged in the apparatus and is configured to ionize the precursor gas and atomize the powder and to eject through the nozzle a jet of particles composed of the atomized powder and the ionized precursor gas onto a substrate arranged adjacent to the nozzle. 1. A system comprising:an apparatus having a nozzle;an element arranged around the apparatus;a feeder configured to supply a powder of a material into the apparatus;a gas source configured to supply a precursor gas into the apparatus and to supply an inert gas to circulate through a space between the element and the apparatus and to exit around the nozzle; anda plasma generator arranged in the apparatus and configured to ionize the precursor gas and atomize the powder and to eject through the nozzle a jet of particles composed of the atomized powder and the ionized precursor gas onto a substrate arranged adjacent to the nozzle.2. The system of wherein the material is selected from a group consisting of silicon claim 1 , ceramics claim 1 , and refractory metals.3. The system of further comprising a controller configured to maintain a temperature of the substrate and materials deposited on the substrate to less than a ductile to brittle transition temperature of the material.4. The system of wherein the apparatus deposits one or more layers of the particles onto the substrate.5. The system of further comprising a controller configured to alter one or more of electrical claim 1 , thermal claim 1 , and chemical properties at a plurality of locations in a single layer or across a plurality of layers of the particles deposited onto the ...

ELECTRICAL CONTACT COMPOSITES AND METHOD FOR PRODUCING ELECTRICAL CONTACT COMPOSITES

An electrical contact composite is described. The electrical contact composite has a substrate and an electrically conductive coating applied to the substrate, which coating is connected to an electrode. A metal contact element is connected to the electrode, which contact element is used to connect the conductive coating to a current/voltage source. Furthermore, at least one sprayed layer produced by means of a thermal spraying method, in particular gas dynamic cold spray, and is provided with at least one metal and/or metal alloy, the sprayed layer being arranged between the conductive coating and the contact element. The sprayed layer has a coefficient of thermal expansion that is between the coefficients of thermal expansion of the carrier and of the contact element. The sprayed layer can also be used as the electrode for the conductive coating. 1. An electrical contact composite comprising:a flat substrate with an electrically conductive coating applied thereon,an electrode that is electrically connected to the conductive coating,a metal contact element that is electrically connected to the electrode and serves for a connection of the conductive coating to an electrical component, anda sprayed layer produced by a thermal spraying method,wherein said sprayed layer comprises at least one metal and/or at least one metal alloy, is arranged between the conductive coating and the contact element, and has a coefficient of thermal expansion that is between the coefficients of thermal expansion of a carrier and the contact element.2. An electrical contact composite , comprising:a flat substrate with an electrically conductive coating applied thereon,a sprayed layer sprayed by a thermal spraying method onto the conductive coating, said sprayed layer comprising at least one metal and/or at least one metal alloy, anda metal contact element, which is electrically connected to the sprayed layer and serves for a connection of the conductive coating to an electrical component, ...

PROTECTIVE COATINGS AND METHODS OF FORMING SAME

A multi-layer protective coating for a substrate arranged in or on a vessel and method of forming multi-layer protective coating on a substrate arranged in or on a vessel. Multi-layer protective coating includes a thermal sprayed bonding layer formed on and in contact with a first face of the substrate prepared in a manner to allow the bonding layer to adhere, the bonding layer having a substrate face and a non-substrate face, a resistance layer made of a material resistant to impact forces and corrosion caused by a corrosive environment in a vicinity of the substrate arranged in or on the vessel, the resistance layer formed on and in contact with the non-substrate face of the bonding layer, the resistance layer having a bond face and a non-bond face, and a sealant layer formed on and in contact with the non-bond face of the resistance layer. 1. A multi-layer protective coating for a substrate arranged in or on a vessel , comprising:a thermal sprayed bonding layer formed on and in contact with a first face of the substrate prepared in a manner to allow the bonding layer to adhere, the bonding layer having a substrate face and a non-substrate face;a resistance layer made of a material resistant to impact forces and corrosion caused by a corrosive environment in a vicinity of the substrate arranged in or on the vessel, the resistance layer formed on and in contact with the non-substrate face of the bonding layer, the resistance layer having a bond face and a non-bond face; anda sealant layer formed on and in contact with the non-bond face of the resistance layer.2. The coating of claim 1 , wherein the vessel is at least one of a ship claim 1 , an aircraft claim 1 , a spacecraft claim 1 , a rail-transport vehicle claim 1 , and a land-based vehicle.3. The coating of claim 1 , wherein the bonding layer comprises at least one of a metal and metal alloy claim 1 , the resistance layer comprises at least one of a metal and metal alloy claim 1 , and the sealant layer ...

MECHANICALLY ALLOYED METALLIC THERMAL SPRAY COATING MATERIAL AND THERMAL SPRAY COATING METHOD UTILIZING THE SAME

Thermal sprayed coating made from a thermal spray powder material containing aluminum containing particles mechanically alloyed to a transition metal. The coating includes aluminum alloy portions alloyed to the transition metal. The thermal spray powder is made of aluminum containing particles mechanically alloyed to a transition metal. 1. A thermal sprayed coating made from aluminum containing particles mechanically alloyed to a transition metal of Molybdenum (Mo) or Chromium (Cr) or a combination of Mo and Cr , said aluminum containing particles comprising a core of aluminum or aluminum alloy coated with the transition metal , said coating comprising aluminum or aluminum alloy portions alloyed to the transition metal.2. The coating of claim 1 , wherein the aluminum alloy comprises aluminum and silicon.3. The coating of claim 1 , wherein the thermal sprayed coating is made from:organic material blended or mixed or clad with the aluminum containing particles; orsolid lubricant blended or mixed or clad with the aluminum containing particles.4. The coating of claim 1 , wherein the aluminum containing particles comprises a core of pure aluminum.5. The coating of claim 1 , wherein the aluminum containing particles comprises a core of an aluminum alloy.6. The coating of claim 1 , wherein the transition metal is exclusively Molybdenum.7. The coating of claim 1 , wherein the transition metal is exclusively Chromium.8. The coating of claim 1 , wherein the transition metal is exclusively a mixture of Molybdenum and Chromium.9. The coating of claim 1 , wherein the mechanically alloyed transition metal has a particle size that is one of:below 50 μm Fisher Model 95 Sub-Sieve Sizer (FSSS) measurement; orbelow 10 μm (FSSS measurement).10. A thermal spray powder coating material comprising aluminum containing particles mechanically alloyed to a transition metal of Molybdenum (Mo) or Chromium (Cr) or a combination of Mo and Cr claim 1 , said aluminum containing particles comprising ...

Coating Method Using Special Powdered Coating Materials and Use of Such Coating Materials

The invention relates to the use of a particle-containing powdered coating material in a coating method selected from the group consisting of cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying, wherein the particles have a relative deformability factor Vof at most 0.1 and the relative deformability factor is defined according to Formula (I): 3. The process according to claim 1 , wherein the relative deformability factor of the powdered coating material is at most 0.01.4. The process according to claim 1 , wherein the particles of the powdered coating material have a technical elastic limit of more than 45 N/mm.5. The process according to claim 1 , wherein the melting point claim 1 , measured in [K] claim 1 , of the particles of the coating material is at most 60% of the temperature claim 1 , measured in [K] claim 1 , of the medium used in the coating method directed onto the substrate.6. The process according to claim 1 , wherein the particles comprise metal particles claim 1 , and the metal is selected from the group consisting of silver claim 1 , gold claim 1 , platinum claim 1 , palladium claim 1 , vanadium claim 1 , chromium claim 1 , manganese claim 1 , cobalt claim 1 , germanium claim 1 , antimony claim 1 , aluminum claim 1 , zinc claim 1 , tin claim 1 , iron claim 1 , copper claim 1 , nickel claim 1 , titanium claim 1 , silicon claim 1 , alloys and mixtures thereof.7. The process according to claim 1 , wherein the coating method is selected from the group consisting of flame spraying and non-thermal plasma spraying.8. The process according to claim 1 , wherein the powdered coating material has a particle-size distribution with a Dvalue from a range of from 1.5 to 84 μm.9. The process according to claim 1 , wherein the powdered coating material has a particle-size distribution with a Dvalue from a range of from 3.7 to 26 μm claim 1 , a Dvalue from a range of from 6 to 49 μm and a Dvalue from a ...

ALUMINIUM ALLOY SHEET PRODUCT OR EXTRUDED PRODUCT FOR FLUXLESS BRAZING

An aluminium alloy sheet product or extruded product for fluxless brazing, including an aluminium alloy core having on at least one face an aluminium filler clad layer containing 4% to 15% of Si, the filler clad layer having an inner-surface and an outer-surface, the inner-surface is facing the aluminium alloy core and the outer-surface is facing a coating layer of 2 to 45 mg/sq.m of Bi or of a Bi-based alloy. Furthermore, a method of brazing a brazed assembly incorporating at least one member made from the brazing sheet material. 1. An aluminium alloy sheet product or extruded product for fluxless brazing , comprising:an aluminium alloy core having on at least one face an aluminium filler clad layer containing 4% to 15% of Si, the filler clad layer having an inner-surface and an outer-surface,wherein the inner-surface is facing the aluminium alloy core and the outer-surface is facing a coating layer of 2 to 45 mg/sq.m of Bi or of a Bi-based alloy,wherein the coating layer of Bi or of a Bi-based alloy is devoid of any further layer comprising one or more metals selected from the group of nickel, cobalt, palladium, and iron.2. The aluminium alloy sheet product or extruded product according to claim 1 , wherein the coating layer is at most 30 mg/sq.m.3. The aluminium alloy sheet product or extruded product according to claim 1 , wherein the coating layer is at least 4 mg/sq.m.4. The aluminium alloy sheet product or extruded product according to claim 1 , wherein the coating layer of Bi or of a Bi-based alloy is a plated layer.5. The aluminium alloy sheet product or extruded product according to claim 1 , wherein the coating layer of Bi or of a Bi-based alloy is devoid of any further layer comprising each of nickel claim 1 , cobalt claim 1 , palladium claim 1 , and iron.6. The aluminium sheet product or extruded product according to claim 1 , wherein the filler clad layer has a composition claim 1 , in wt. % claim 1 , of:Si 4% to 15%,Mg 0 to 1%,Fe 0 to 1%,Cu 0 to 2%,Mn ...

PLASMA SPRAY COATING ENHANCEMENT USING GRADUATED PARTICLE FEED RATE

A method for forming a ceramic coating on an article includes placing the article into a chamber or spray cell of a plasma spraying system. A first ceramic powder is then fed into the plasma spraying system at a first powder feed rate, and a first layer of a plasma resistant ceramic coating is deposited onto at least one surface of the article in a plasma spray process by the plasma spray system. The powder feed rate is adjusted to a second powder feed rate, and a second layer of the plasma resistant ceramic coating is deposited onto the at least one surface of the article in the plasma spray process by the plasma spray system. 1. A method , comprising:feeding a first ceramic powder into a plasma spraying system at a first powder feed rate of about 10-200 grams per minute;depositing a first layer of a ceramic coating on at least one surface of an article in a first phase of a plasma spray process by the plasma spray system using the first powder feed rate;subsequently feeding at least one of the first ceramic powder or a second ceramic powder into the plasma spraying system at a second powder feed rate that is lower than the first powder feed rate, wherein the second powder feed rate is 10-90% lower than the first powder feed rate; anddepositing a second layer of the ceramic coating over the first layer on the at least one surface of the article in a second phase of the plasma spray process by the plasma spray system using the second powder feed rate, wherein the first powder feed rate causes a higher deposition rate than the second powder feed rate, and wherein the second powder feed rate causes a surface of the ceramic coating to have a first quantity of surface particles, a first average surface roughness and a first porosity that are lower than a respective second quantity of surface particles, a second average surface roughness and a second porosity that would be generated with use of the first powder feed rate for the second layer.2. The method of claim 1 , ...

WIND TURBINE TRANSMISSION

The invention relates to a wind turbine gearbox (), in particular a planetary gearbox, having at least one gear () mounted on an axle (), for which purpose a sliding layer () is arranged between the gear () and the axle (), said sliding layer () being sprayed directly onto the axle () or, with intermediate arrangement of at least one further layer (), onto the further layer () by means of a thermal spaying method. 18121520121520152121: A wind turbine gearbox () , in particular a planetary gearbox , having at least one gear () mounted on an axle () , for which purpose a sliding layer () is arranged between the gear () and the axle () , wherein the sliding layer () is sprayed directly onto the axle () or , with intermediate arrangement of at least one further layer () , onto the further layer () by means of a thermal spaying method.2820: The wind turbine gearbox () according to claim 1 , wherein the sliding layer () consists of or comprises a material selected from a group comprising consisting of aluminum base alloys claim 1 , bismuth base alloys claim 1 , silver base alloys claim 1 , and copper base alloys.3820: The wind turbine gearbox () according to claim 1 , wherein a polymer-based running-in layer is arranged on the sliding layer ().482015: The wind turbine gearbox () according to claim 1 , wherein two sliding layers () arranged at an axial distance from one another are sprayed onto the axle () by means of a thermal spaying method.58: The wind turbine gearbox () according to claim 1 , wherein hard particles and/or soft phase particles are embedded in the sliding layer.68: The wind turbine gearbox () according to claim 5 , wherein the hard particles are selected from a group consisting of metal oxides claim 5 , metal nitrides claim 5 , metal carbides claim 5 , metal borides claim 5 , and metal silicides and/or wherein the soft phase particles are selected from a group consisting of graphite claim 5 , hexagonal BN claim 5 , and metal sulfides.7157857578: A wind ...

METHODS FOR APPLYING SACRIFICIAL COATINGS FOR CORROSION PROTECTION OF STEEL CHAINS AND CHAINS PREPARED THEREBY

Processes for protecting steel chains from corrosion and steel chains thus protected are provided. The process includes using finite element analysis to determine stress levels within links of a steel chain having a plurality of connected links. Regions of each link of the chain corresponding to high stress levels are identified. Target areas corresponding to the regions identified are indicated for coating each link of the chain with a sacrificial coating. Thermally sprayed alumina can be used as the sacrificial coating. 1. A process for protecting a steel chain from corrosion , comprising:a. using finite element analysis to determine stress levels within links of a steel chain comprising a plurality of connected links;b. identifying regions of each link of the chain corresponding to high stress levels;c. indicating target areas for coating each link of the chain corresponding to the regions identified; andd. applying a sacrificial coating to the target areas.2. The process of claim 1 , wherein the sacrificial coating comprises a metal selected from the group consisting of aluminum claim 1 , zinc claim 1 , magnesium and alloys thereof.3. The process of claim 1 , wherein the sacrificial coating comprises aluminum and alloys thereof.4. The process of claim 1 , wherein the sacrificial coating is applied by thermal spraying.5. The process of claim 1 , wherein the sacrificial coating is applied during a process for inspection of the steel chain.6. The process of claim 1 , wherein each link comprises a crown at each end of the link claim 1 , two interior shoulders at each end of the link and a weld; and wherein the target areas for coating each link of the chain corresponding to the regions identified comprise areas of the link selected from the group consisting of each crown of the link claim 1 , each interior shoulder of the link claim 1 , the weld of the link and combinations thereof.7. The process of claim 1 , wherein the sacrificial coating on each link covers from ...

ABRADABLE SEAL AND METHOD OF PRODUCING A SEAL

An air seal for use in a gas turbine engine. The seal includes a thermally sprayed abradable seal layer. The abradable material is composed of aluminum powder forming a metal matrix, and co-deposited methyl methacrylate particles and/or hexagonal boron nitride particles embedded as filler in the metal matrix. 120.-. (canceled)21. An air seal comprising a porous abradable seal layer formed by thermally spraying aluminum powder forming a metal matrix , co-depositing methyl methacrylate filler particles in the metal matrix , and removing the methyl methacrylate filler particles.22. The air seal of claim 21 , further comprising: a seal substrate; and a thermally sprayed metal bond layer applied to at least a portion of the seal substrate claim 21 , the metal bond layer composed of thermally sprayed powder; wherein the abradable seal layer is applied to the metal bond layer.23. The air seal of claim 21 , wherein the air seal is an outer air seal of a gas turbine engine.24. The air seal of claim 21 , wherein the air seal is a knife edge seal of a gas turbine engine.25. The air seal of claim 21 , wherein the thermal spray comprises a plasma spray.26. The air seal of claim 21 , wherein the aluminum powder particles comprises at least about 99 weight percent aluminum powder.27. The air seal of claim 21 , wherein the abradable layer comprises about 30 to about 60 volume percent aluminum.28. The air seal of claim 27 , wherein the abradable layer comprises about 40 to about 50 volume percent aluminum.29. An air seal comprising a porous abradable seal layer formed by thermally spraying aluminum powder forming a metal matrix claim 27 , co-depositing hexagonal boron nitride filler particles and methyl methacrylate filler particles in the metal matrix claim 27 , and removing the methyl methacrylate filler particles.30. The air seal of claim 29 , further comprising: a seal substrate; and a thermally sprayed metal bond layer applied to at least a portion of the seal substrate claim ...

HYDROPHOBIC ALLOY FILM AND MANUFACTURING METHOD THEREOF

A hydrophobic alloy film and a manufacturing method thereof are provided. The hydrophobic alloy film includes Al, Cu, O, and at least one selected from the group consisting of Fe, Co, Ni, and Cr, or Ti, Zr, O, and at least one selected from the group consisting of Fe, Co, Ni, and Cr. The content of each of Al and Ti is in the range of 40 at. % to 70 at. %. The content of each of Cu and Zr is in the range of 10 at. % to 40 at. %. The total content of at least one selected from the group consisting of Fe, Co, Ni, and Cr is in the range of 10 at. % to 30 at. %. The content of O is in the range of 10 at. % to 30 at. %. The hydrophobic alloy film has a quasicrystal structure and nanoparticles. 1. A hydrophobic alloy film , comprising:Al, Cu, O, and at least one selected from the group consisting of Fe, Co, Ni, and Cr, or Ti, Zr, O, and at least one selected from the group consisting of Fe, Co, Ni, and Cr,wherein a content of each of Al and Ti is in a range of 40 at. % to 70 at. %, a content of each of Cu and Zr is in a range of 10 at. % to 40 at. %, a total content of at least one selected from the group consisting of Fe, Co, Ni, and Cr is in a range of 10 at. % to 30 at. %, a content of 0 is in a range of 10 at. % to 30 at. %, andthe hydrophobic alloy film has a quasicrystal structure and nanoparticles.2. The hydrophobic alloy film of claim 1 , wherein a content of the quasicrystal structure is greater than 50%.3. The hydrophobic alloy film of claim 1 , wherein a particle size of the nanoparticles is in a range of 10 nm to 200 nm.4. The hydrophobic alloy film of claim 1 , wherein a water contact angle of the hydrophobic alloy film is in a range of 90° to 140°.5. A manufacturing method of a hydrophobic alloy film claim 1 , comprising:forming an alloy material on a substrate, wherein the alloy material comprises Al, Cu, and at least one selected from the group consisting of Fe, Co, Ni, and Cr, or Ti, Zr, and at least one selected from the group consisting of Fe, Co, Ni, ...

SYSTEMS AND METHODS FOR COATING A COMPONENT

A system for coating a component is provided. The system includes a feedstock supply, a carrier fluid supply, and a thermal spray gun coupled in flow communication with the feedstock supply and the carrier fluid supply. The feedstock supply contains a substantially homogeneous powder mixture of a first powder and a second powder. The second powder is softer than the first powder and has a percentage by mass of the powder mixture of between about 0.1% and about 3.0%. 1. A system for coating a component , said system comprising:a feedstock supply;a carrier fluid supply; anda thermal spray gun coupled in flow communication with said feedstock supply and said carrier fluid supply, wherein said feedstock supply contains a substantially homogeneous powder mixture of a first powder and a second powder, said second powder being softer than said first powder and having a percentage by mass of said powder mixture of between about 0.1% and about 3.0%.2. A system in accordance with claim 1 , wherein said second powder has a Mohs hardness of at most three.3. A system in accordance with claim 2 , wherein said second powder is a powdered metallic material that is one of substantially pure aluminum claim 2 , substantially pure zinc claim 2 , substantially pure copper claim 2 , substantially pure bismuth claim 2 , and substantially pure tin.4. A system in accordance with claim 1 , further comprising a mixer in which said first powder and said second powder are pre-mixed to make said powder mixture.5. A system in accordance with claim 4 , wherein said mixer comprises a container and a plurality of mixing balls displaceable in said container during the pre-mixing.6. A system in accordance with claim 1 , wherein said second powder has a percentage by mass of said powder mixture of between about 0.3% and about 0.7%.7. A system in accordance with claim 6 , wherein said second powder has a percentage by mass of said powder mixture of about 0.5%.8. A method for coating a component claim 6 ...

METHOD FOR ENHANCING WEAR RESISTANCE PROPERTIES OF A MECHANICAL COMPONENT

A method for improving wear resistance properties of a component includes depositing by thermal spraying, on all or part of the surface of the component, a layer including molybdenum, putting the surface of the component presenting a layer including molybdenum into contact with an aqueous solution at a temperature above room temperature. A component treated according to such a method is also disclosed. 1. A method for improving wear resistance properties of a component comprising steps of:a) depositing a layer comprising molybdenum by thermal spraying on all or part of a surface of the component; andb) bringing the surface of the component having a layer comprising molybdenum into contact with an aqueous solution at a temperature above room temperature.2. The method of claim 1 , wherein the surface of the component is made of a material selected from the group consisting of titanium alloys claim 1 , nickel alloys and austenitic stainless steels.3. The method of claim 1 , wherein the component is selected from the group consisting of components of a ball joint system claim 1 , a cylinder rod claim 1 , a ring claim 1 , a gear claim 1 , a camshaft claim 1 , a valve claim 1 , an injection pump claim 1 , a bearing shell claim 1 , a bearing and a shaft.4. The method of claim 1 , wherein claim 1 , during step (a) claim 1 , thermal spraying employed is plasma spraying.5. The method of claim 1 , wherein claim 1 , during step (a) claim 1 , the layer deposited by thermal spraying comprises predominantly molybdenum.6. The method of claim 1 , wherein claim 1 , during step (b) claim 1 , the aqueous solution only comprises water.7. The method of claim 1 , wherein claim 1 , during step (b) claim 1 , the aqueous solution comprises at least one other element in addition to a solvent.8. The method of claim 1 , wherein claim 1 , during step (b) claim 1 , contacting is carried out in static mode or in dynamic mode.9. The method of claim 1 , wherein claim 1 , during step (b) claim 1 , ...

MOLTEN METAL RESISTANT COMPOSITE COATINGS

Composite coating materials comprising a hard carbide phase and a metallic binder that are resistant to molten metals such as aluminum are disclosed. The hard carbide phase of the composite coatings may comprise tungsten carbide, and the metallic binder may comprise a nickel-based alloy. A thin oxide layer comprising oxides of the binder metal may be provided on the surface of the composite coating. The composite coatings exhibit desirable non-wetting behavior when exposed to molten metals. 1. A molten metal resistant composite coating comprising:a hard carbide phase; anda metallic binder comprising Ni and Cr.2. The molten metal resistant composite coating of claim 1 , wherein the hard carbide phase comprises from 60 to 70 weight percent of the composite coating.3. The molten metal resistant composite coating of claim 1 , wherein the carbide phase comprises tungsten carbide particles having an average size from 70 to 180 microns.4. The molten metal resistant composite coating of claim 1 , wherein the metallic binder comprises from 30 to 40 weight percent of the composite coating.5. The molten metal resistant composite coating of claim 1 , wherein the metallic binder comprises from 70 to 86 weight percent Ni.6. The molten metal resistant composite coating of claim 5 , wherein the metallic binder further comprises from 7 to 20 weight percent Cr.7. The molten metal resistant composite coating of claim 1 , wherein the metallic binder comprises 70 to 86 weight percent Ni claim 1 , from 7 to 20 weight percent Cr claim 1 , from 1 to 5 weight percent Si claim 1 , from 2 to 5 weight percent Fe claim 1 , from 1 to 4 weight percent B claim 1 , and the balance incidental impurities claim 1 , and has a hardness range of HRC from 33 to 50.8. The molten metal resistant composite coating of claim 1 , further comprising an oxide surface layer over at least a portion of the base layer.9. The molten metal resistant composite coating of claim 8 , wherein the oxide surface layer has a ...

OUTER COATING FOR AN UNDERGROUND PIPING MEMBER MADE FROM IRON, COATED PIPING MEMBER AND METHOD FOR DEPOSITING THE COATING

The invention relates to an outer coating () for an underground piping member () made from iron, in particular cast iron, the outer coating comprising a first porous layer () and a second porous layer () positioned on the first layer and capable of plugging the pores of the first layer (). The first layer comprises substantially pure zinc or an alloy or pseudo-alloy of zinc, the alloy or pseudo-alloy comprising at least 50 wt % zinc, and preferably between 0.5 wt % and 40 wt % aluminum. The second layer comprises a paint with a base of at least one organic resin, the paint being either single-component in an organic solvent or co-solvent, or dual-component. At least one among the first layer and second layer comprises a bactericidal agent. 1. An outer coating for an underground piping member made from iron , in particular cast iron , the outer coating having a first porous layer and a second porous layer positioned on the first layer and capable of plugging the pores of the first layer , wherein:the first layer comprises substantially pure zinc or an alloy or pseudo-alloy of zinc, the alloy or pseudo-alloy comprising at least 50 wt % zinc,the second layer comprises a paint with a base of at least one organic resin, the paint being either single-component in an organic solvent or co-solvent, or dual-component, andat least one among the first layer and second layer comprises a bactericidal agent.2. The outer coating according to claim 1 , wherein the first layer comprises at least one bactericidal agent taken from the list consisting of copper claim 1 , silver claim 1 , and a mixture of copper and silver claim 1 , said copper claim 1 , said silver claim 1 , and said mixture of copper and silver respectively being at concentrations comprised between 0.1 wt % and 5 wt %.3. The outer coating according to claim 1 , wherein the second layer comprises at least one bactericidal agent capable of coming into contact with water intended for human consumption.4. The outer ...

THERMALLY INSULATED ENGINE COMPONENTS USING A CERAMIC COATING

A component for exposure to a combustion chamber of a diesel engine and/or exhaust gas, such as a cylinder liner or valve face, is provided. The component includes a thermal barrier coating applied to a body portion formed of steel. A layer of a metal bond material can be applied first, followed by a mixture of the metal bond material and a ceramic material, optionally followed by a layer of the ceramic material. The ceramic material preferably includes at least one of ceria, ceria stabilized zirconia, yttria stabilized zirconia, calcia stabilized zirconia, magnesia stabilized zirconia, and zirconia stabilized by another oxide. The thermal barrier coating is applied by thermal spray or HVOF. The thermal barrier coating has a porosity of 2% by vol. to 25% vol., a thickness of less than 1 mm, and a thermal conductivity of less than 1.00 W/m·K. 1. A component for exposure to a combustion chamber of an internal combustion engine and/or exhaust gas generated by the internal combustion engine , comprising:a body portion formed of metal;a thermal barrier coating applied to said body portion;said thermal barrier coating including a mixture of a metal material and a ceramic material; andsaid thermal barrier coating having a thickness of less than less than 1 mm and a thermal conductivity of less than 0.5 W/m·K.2. The component of claim 1 , wherein said thermal barrier coating has a porosity of 2% by vol. to 25% by vol. claim 1 , based on the total volume of said thermal barrier coating;3. The component of claim 1 , wherein said ceramic material of said thermal barrier coating includes at least one of ceria claim 1 , ceria stabilized zirconia claim 1 , yttria stabilized zirconia claim 1 , calcia stabilized zirconia claim 1 , magnesia stabilized zirconia claim 1 , and zirconia stabilized by another oxide.4. The component of claim 1 , wherein said ceramic material consists of ceria stabilized zirconia.5. The component of claim 1 , wherein said thermal barrier coating includes a ...

METHOD FOR DIFFUSING AND PERMEATING CREEP REINFORCEMENT MATERIAL INTO HEAT-RESISTANT METAL MEMBER, AND HEAT-RESISTANT METAL MEMBER WITH ENHANCED CREEP STRENGTH

A creep reinforcement material containing one or a plurality of elements selected from B, W, Cr, Mo, Nb, V, Hf, Zr, Ti, Cu, and Co is coated or thermally sprayed onto a surface of a heat-resistant metal member manufactured using a heat-resistant metal material, and a section coated or thermally sprayed with the creep reinforcement material is covered by a heat-resistant covering member and secured so as to contact the section. The heat-resistant metal member covered by the heat-resistant covering member is heated to a temperature of 1000° C. or greater, and thus compressive force accordingly acts on the heat-resistant metal member as it thermally expands in a direction toward the outer periphery, restraining thermal expansion of the heat-resistant metal member in the direction toward the outer periphery, and enabling the creep reinforcement material on the surface of the heat-resistant metal member to be efficiently diffused and permeated into the heat-resistant metal member. 1. A method for diffusing and permeating a creep reinforcement material into a heat-resistant metal member , the method comprising:coating or thermally spraying a creep reinforcement material onto a surface of a heat-resistant metal member;covering, by a heat-resistant covering member, a section coated or thermally sprayed with the creep reinforcement material, and securing the heat-resistant covering member so as to contact the section; andheating the heat-resistant metal member covered by the heat-resistant covering member to a temperature of 1000° C. or greater,the creep reinforcement material containing one or a plurality of elements selected from B, W, Cr, Mo, Nb, V, Hf, Zr, Ti, Cu, and Co.2. The method according to claim 1 , wherein claim 1 ,{'sub': '1', 'after heating the heat-resistant metal member covered by the heat-resistant covering member to a temperature of 1000° C. or greater, the heat-resistant metal member covered by the heat-resistant covering member is cooled and re-heated to ...

Abrasive Tip Blade Manufacture Methods

A method is disclosed for manufacturing a blade tip coating. The blade tip coating () comprising an abrasive () and a matrix (). The method comprises forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate (). The mixture is pressed, the additional particulate acting as a stop to limit thickness reduction of the mixture. 1. A method for manufacturing an airfoil tip coating , the airfoil tip coating comprising an abrasive and a matrix , the method comprising:forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate; andpressing the mixture, the additional particulate having a larger characteristic size than the abrasive and acting as a stop to limit thickness reduction of the mixture.2. The method of further comprising:curing the precursor of the matrix.3. The method of further comprising:releasing a release member from the mixture.4. The method of wherein the airfoil comprises:a root end and a tip; anda substrate along at least a portion of the airfoil, and the method comprises:applying the mixture to the tip.5. The method of wherein:the pressing comprises pressing a member against the applied mixture, the additional particulate acting as a stop to limit proximity of the member to the substrate.6. The method of further comprising:curing the precursor of the matrix; andreleasing the tip coating from the member.7. The method of further comprising:removing a first release member from the pressed mixture prior to the applying; andremoving a second release member from the pressed mixture after the applying.8. The method of wherein:the tip coating is a first layer; andthe method further comprises forming a second layer having a lower abrasive content than the first layer.9. The method of wherein: forming a second mixture comprising a second abrasive, a second matrix precursor, and a second additional particulate; and', 'pressing the second mixture, the second additional particulate ...

Wear-resistant coating for oil pump cavity

Oil pumps having wear-resistant coatings applied thereto and methods of applying the coatings are disclosed. The oil pump may include an aluminum housing that defines a cavity. A steel rotor may be disposed within the cavity and configured to rotate therein such that a portion of the steel rotor contacts the aluminum housing. A metal coating (e.g., steel) may cover at least a portion of the aluminum housing in a region that is configured to be contacted by the steel rotor. An integrated oil pump and engine cover is disclosed including an aluminum body having a peripheral wall defining a cavity. The peripheral wall may form a portion of the oil pump housing and the cavity may receive a steel rotor. A wear-resistant coating (e.g., steel) may cover at least a portion of the peripheral wall in a region that is configured to be contacted by the steel rotor.

SILICON COATING ON HARD SHIELDS

A device including a hard shield material; a layer including aluminum or copper; and a silicon layer having a first thickness is disclosed. The device can also include a silicon layer having a second thickness. A method of making the device is also disclosed. 1. A device comprising:a hard shield material;a layer including aluminum or copper; anda silicon layer having a first thickness.2. The device of claim 1 , further comprising a silicon layer having a second thickness.3. The device of claim 1 , wherein the hard shield material is a metal.4. The device of claim 1 , wherein the hard shield material is an element of Groups 1 through 13 of the periodic table.5. The device of claim 1 , wherein the hard shield material is steel or aluminum.6. The device of claim 1 , wherein the hard shield material has a thickness ranging from about 1 mm to about 5 mm.7. The device of claim 1 , wherein the layer including aluminum or copper is roughened.8. The device of claim 1 , wherein the layer including aluminum or copper can have a thickness of about 0.001 mm to about 5 mm.9. The device of claim 1 , wherein the silicon layer is present at a first thickness of about 0.05 mm to about 2 mm.10. The device of claim 2 , wherein the silicon layer is present at a second thickness from about 10 nm to about 100 nm.11. A method of making a device claim 2 , comprising:providing a hard shield material;applying on top of the hard shield material a layer using a twin wire arc spray process; andapplying on top of the layer applied using the twin wire arc spray process a silicon layer having a first thickness using a plasma spray process.12. The method of claim 11 , wherein the hard shield material is steel or aluminum.13. The method of claim 11 , wherein the layer applied using the twin wire arc spray process is a layer of aluminum.14. The method of claim 11 , wherein the layer applied using the twin wire arc spray process is a layer of copper.15. The method of claim 11 , further comprising after ...

Brake Disc and Method for Manufacturing a Brake Disc

A brake disc includes at least one friction surface consisting of a base body. The base body can be made from gray cast iron. At least one coating is applied on at least parts of the friction surface. The coating contains at least tungsten chromium carbide 2C and nickel-chromium NiCr. The coating may further contain tungsten carbide WC. The production of the brake disc according to the disclosure is also described herein. The coating has excellent oxidation resistance and good wear resistance even at high temperatures of up to 800° C.

METAL THERMAL SPRAY METHOD

Provided is a metal thermal spray method, which does not require a process of imparting an uneven shape to a surface of a base material in advance, 1. A metal thermal spray method of thermally spraying a metal onto a surface of a base material made of a metal , the metal having an ionization tendency larger than that of the metal of the base material , comprising: thermally spraying the metal onto the surface of the base material; and impregnating a thermally sprayed film formed by the thermal spraying with a coating material that contains silane and polyisocyanate and has viscosity of 50 to 500 mPa·s at 25° C. and curing the coating material , whereby a pore sealing treatment in the thermally sprayed film and adhesion strength of the thermally sprayed film onto the surface of the base material are reinforced.2. The metal thermal spray method according to claim 1 , wherein the coating material contains alkylalkoxysilane as the silane claim 1 , and the alkylalkoxysilane and the polyisocyanate contained in the coating material has a weight ratio of 10 to 90:90 to 10. The present invention relates to apply a metal thermal spray to a surface of a base material consisting of a metal such as bridges, towers, pipes, guardrails, ship, and various types of steel.In order to impart an anchor effect to a thermally sprayed film, a conventional metal thermal spray method employs a method of obtaining the anchor effect in such a manner that a base material surface is subjected to blasting in advance to roughen and is formed into an uneven shape or that, as described in Patent Literature 1 below, a base material surface is previously coated with a coating film composition containing an epoxy resin to form a coating film having an uneven shape and a metal thermal spray is applied to the surface having such an uneven shape.Patent Literature 1: JP 3106480 B1In the method of roughening the base material surface by the blasting and forming the uneven shape, however, there are problems ...

WEAR RESISTANT AND CORROSION RESISTANT COBALT-BASED ALLOY POWDERS AND APPLICATIONS THEREOF

Cobalt-based alloy compositions are described herein having properties compatible with thermal spray and sintering techniques. Such alloy compositions can provide claddings to a variety of metallic substrates having complex geometries, wherein the claddings exhibit desirable density, hardness, wear resistance and corrosion resistance. Briefly, an alloy composition described herein comprises 15-25 wt. % chromium, 15-20 wt. % molybdenum, 0-15 wt. % tungsten, 10-20 wt. % nickel, 2.5-3.5 wt. % boron, 2.5-4.5 wt. % silicon, 1-2 wt. % carbon and the balance cobalt, wherein a ratio of boron to silicon (B/Si) in the alloy composition ranges from 0.5 to 1.0. 1. A wear and corrosion resistant alloy composition comprising:15-25 wt. % chromium, 15-20 wt. % molybdenum, 0-15 wt. % tungsten, 10-20 wt. % nickel, 2.5-3.5 wt. % boron, 2.5-4.5 wt. % silicon, 1-2 wt. % carbon and the balance cobalt, wherein a ratio of boron to silicon (B/Si) in the alloy composition ranges from 0.5 to 1.0.2. The wear and corrosion resistant alloy composition of claim 1 , wherein the B/Si ratio ranges from 0.65 to 0.85.3. The wear and corrosion resistant alloy of claim 1 , wherein a ratio of nickel to a sum of boron and silicon in the alloy [Ni/(B+Si)] is in the range of 2.0-3.0.4. The wear and corrosion resistant alloy composition of claim 3 , wherein the Ni/(B+Si) ratio ranges from 2.1-2.5.5. The wear and corrosion resistant alloy of having a solidus temperature less than 1150° C.6. The wear and corrosion resistant alloy of claim 1 , having a melting range of 50° C. to 70° C.7. An article comprising:a metallic substrate; anda sintered alloy coating adhered to the metallic substrate, the sintered alloy coating comprising 15-25 wt. % chromium, 15-20 wt. % molybdenum, 0-15 wt. % tungsten, 10-20 wt. % nickel, 2.5-3.5 wt. % boron, 2.5-4.5 wt. % silicon, 1-2 wt. % carbon and the balance cobalt.8. The article of claim 7 , wherein the sintered alloy coating has less than 2 vol. % porosity.9. The article of ...

MANUFACTURING METHOD FOR COMPONENT IN PLASMA PROCESSING APPARATUS

A manufacturing method for a component in a plasma processing apparatus is provided. The method includes: performing a surface conditioning on a surface of an underlying layer on which a film is to be formed by thermal spraying, the surface of the underlying layer includes a surface of a base or a surface of a layer formed on the surface of the base; and forming the film on the surface of the underlying layer by thermally spraying yttrium fluoride. A high velocity oxygen fuel spraying method or an atmospheric plasma spraying method is used in the forming of the film. 1. A manufacturing method for a component in a plasma processing apparatus , the manufacturing method comprising:performing a surface conditioning on a surface of an underlying layer on which a film is to be formed by thermal spraying, the surface of the underlying layer includes a surface of a base or a surface of a layer formed on the surface of the base; andforming the film on the surface of the underlying layer by thermally spraying yttrium fluoride,wherein, a high velocity oxygen fuel spraying method or an atmospheric plasma spraying method is used in the forming of the film, andin the forming of the film, a slurry containing yttrium fluoride particles having an average diameter ranging from 1 μm to 8 μm is supplied, from a nozzle of a spraying gun configured to jet a flame in the high velocity oxygen fuel spraying method or from a nozzle of a spraying gun configured to discharge a plasma jet in the atmospheric plasma spraying method, to a position distanced apart from the nozzle of the spraying gun toward a downstream side in a direction of a central axis line of the nozzle of the spraying gun or to a position corresponding to a tip end of the nozzle of the spraying gun.2. The manufacturing method of claim 1 ,wherein the high velocity oxygen fuel spraying method is used in the forming of the film, andthe position to which the slurry is supplied is in the range from 0 mm to 100 mm from the tip end ...

HIGH VELOCITY SPRAY TORCH FOR SPRAYING INTERNAL SURFACES

A thermal spray apparatus to apply coatings to external and internal surfaces in restricted areas is provided. The apparatus includes: a fuel input line; an oxidizing gas input line; coolant input and outlet; a combustion chamber that facilitates primary combustion; a diverging section that splits the primary combustion flow into two or more streams; an elbow section that redirects the combustion streams; a convergent/divergent nozzle; a convergence section that recombines the combustion streams into a single combustion stream within an injection zone of the convergent/divergent nozzle; and a feedstock injector for the injection of feedstock material for forming said coatings into said injection zone of the convergent/divergent nozzle; wherein the convergent/divergent nozzle has a nozzle throat downstream of the injection zone whereby in operation the injection pressure of the feedstock material upstream of the nozzle throat approximates the pressure of the combustion stream within the injection zone. The apparatus may also include the use of an accelerating gas. 1: A high velocity oxygen fuel (HVOF) or high velocity air fuel (HVAF) thermal spray apparatus to apply coatings to external and internal surfaces , said apparatus comprising:a. a fuel input line;b. an oxidizing gas input line;c. coolant input and outlet;d. a combustion chamber for primary combustion of the fuel;e. a convergent/divergent nozzle comprising a feedstock injection zone and a nozzle throat downstream of said injection zone;f. a divergence section upstream of said convergent/divergent nozzle that splits the primary combustion flow into two or more combustion streams;g. an elbow section downstream of said divergence section which redirects the diverged combustion streams by an angle greater than 30 degrees relative to the longitudinal axis of said combustion chamber;h. a convergence section downstream of said elbow section that recombines the diverged combustion streams into a single combustion ...

Coating for Components of Internal Combustion Engines

A coating for components of internal combustion engines, in particular for cylinder and/or piston surfaces that includes chromium with a mass fraction between 1 and 30%, iron with a mass fraction between 0 and 50%, carbides and/or oxides with a mass fraction between 0 and 50%, and a solid lubricant with a mass fraction between 0 and 30%. 1. A coating composition for components of internal combustion engines comprising:chromium present in a mass fraction between 1 and 30%;iron present in a mass fraction between 0 and 50%;compounds composed of at least one of carbides, oxides or carbide/oxide mixtures present in a mass fraction between 0 and 50%; anda solid lubricant present in a mass fraction between 0 and 30%.2. The coating of claim 1 , wherein the oxides are aluminum oxide and/or zirconium oxide.3. The coating of claim 1 , wherein the carbides are chromium carbide and/or boron carbide.4. The coating of claim 1 , wherein the solid lubricant is molybdenum dioxide claim 1 , tungsten dioxide and/or iron oxide.5. The coating of wherein the carbides are chromium carbide and/or boron carbide claim 1 , carbides are chromium carbide and/or boron carbide claim 1 , solid lubricant is molybdenum dioxide claim 1 , tungsten dioxide and/or iron oxide and wherein the composition is applied to at least one surface defined on a cylinder and/or a piston and. wherein the applied coating contains pores.6. The coating of claim 5 , wherein the pores have a pore surface greater than 1 claim 5 ,000 μm.7. The coating of claim 5 , wherein the pores have an average pore volume between 1 claim 5 ,000 and 60 claim 5 ,000 μm.8. The coating of claim 5 , wherein the coating has a peak roughness less than 0.30.9. The coating of claim 8 , wherein the coating has a core roughness less than 0.40.10. A process for imparting a corrosion- and wear-resistant cylinder surface and/or surface of a piston for internal combustion engines for low friction comprising the step of wire spraying a material having a ...

Component with Composite Coating for Enhanced Wear Resistance and Method for Making Same

A component includes a body and a wear layer. The body has a substrate surface. The wear layer is applied to the body such that the wear layer is in overlying relationship with at least a portion of the substrate surface. The wear layer is thermal-spray bonded to the body. The wear layer comprises a composite of a steel alloy and a copper alloy. 1. A component comprising:a body, the body having a substrate surface; anda wear layer, the wear layer applied to the body such that the wear layer is in overlying relationship with at least a portion of the substrate surface, the wear layer being thermal-spray bonded to the body, and the wear layer comprising a composite of a steel alloy and a copper alloy.2. The component according to claim 1 , wherein the composite includes a volume claim 1 , the volume including a first volume fraction of the steel alloy and a second volume fraction of the copper alloy claim 1 , and wherein the first volume fraction is at least five percent of the volume of the composite.3. The component according to claim 1 , wherein the composite includes a volume claim 1 , the volume including a first volume fraction of the steel alloy and a second volume fraction of the copper alloy claim 1 , and wherein the first volume fraction is in a range between ten percent and fifty percent of the volume of the composite.4. The component according to claim 1 , wherein the composite includes a volume claim 1 , the volume including a first volume fraction of the steel alloy and a second volume fraction of the copper alloy claim 1 , and wherein the first volume fraction is in a range between twenty-five percent and fifty percent of the volume of the composite.5. The component according to claim 1 , wherein the composite includes a volume claim 1 , the volume including a first volume fraction of the steel alloy and a second volume fraction of the copper alloy claim 1 , and wherein the first volume fraction and the second volume fraction are substantially equal to ...

METHOD FOR COATING A SUBSTRATE

A method of coating a substrate is proposed, in which a starting material in the form of a process beam is sprayed onto a surface of the substrate by means of thermal spraying, wherein the surface of the substrate is initially pretreated with a plasma flame of a plasma spray device without material deposition and the process beam including the starting material is subsequently applied onto the surface. 1. A method of coating a substrate in which a starting material in the form of a process beam is sprayed onto a surface of the substrate by means of thermal spraying , wherein the surface of the substrate is initially pretreated with a plasma flame of a plasma spray device without material deposition and the process beam including the starting material is subsequently applied onto the surface.2. The method in accordance with claim 1 , in which the substrate is metallic.3. The method in accordance with claim 1 , in which the starting material is a metallic material or a ceramic material.4. The method in accordance with claim 1 , in which the thermal spraying is a plasma spraying.5. The method in accordance with claim 1 , which is carried out at a process pressure which is smaller than the atmospheric pressure.6. The method in accordance with claim 1 , in which a thermal spray apparatus for generating the process beam and the plasma spray device are commonly moved relative to the surface of the substrate separate from one another in time or space claim 1 , such that the plasma flame initially pretreats a region of the surface and subsequently after a predeterminable time frame claim 1 , the process beam is subsequently applied onto the same region.7. The method in accordance with claim 1 , in which the surface of the substrate is pretreated by the plasma spray device without material deposition and the process beam is subsequently generated for the coating with the same plasma spray device.8. The method in accordance with claim 7 , in which the plasma flame for ...

DEVICE FOR FORMING AMORPHOUS FILM AND METHOD FOR FORMING SAME

PROBLEM: To provide a large device and a method which is advantageous for forming a large-area amorphous film. 19-. (canceled)10. A device for forming amorphous film , which sprays a flame including a particulate material with a spraying machine toward a substrate , melts said particulate material with the flame , and cools said particulate material and said flame before said particulate material and said flame reach the substrate , whereinthe spraying machine has a front side provided with a series of particulate material spraying ports and a series of flame spraying ports each placed along a straight line such that said flame including the particulate material has an oblong cross section;a series of spraying ports of an inert gas for rectification and cooling of the flame is placed along said straight line, on both sides across all of said series of particulate material spraying ports and said series of flame spraying ports; anda series of spraying ports of a mist for cooling of the flame is placed along said straight line, on both sides across all of said series of particulate material spraying ports, said series of flame spraying ports, and said series of inert gas spraying ports, andsaid mist is a water mist; and when the mist is sprayed, a quantity of oxygen sprayed from said series of flame spraying ports is 50 to 80% of oxygen requirements for complete combustion.11. A device for forming amorphous film , which sprays a flame including a particulate material with a spraying machine toward a substrate , melts said particulate material with the flame , and cools said particulate material and said flame before said particulate material and said flame reach the substrate , whereinthe spraying machine has a front side provided with a series of particulate material spraying ports and a series of flame spraying ports each placed along a straight line such that said flame including the particulate material has an oblong cross section; a series of spraying ports of an ...

APPARATUS FOR CONTINUOUS HOT-DIP METAL COATING TREATMENT AND METHOD FOR HOT-DIP METAL COATING TREATMENT USING SAME

The disclosure provides a fully new method for hot-dip metal coating treatment, as a method for treating surfaces of a metal strip by hot-dip metal coating, by which inherent issues in conventional immersion coatings and spray coatings are avoided. In the disclosed method for hot-dip metal coating treatment, a surface of a metal strip is coated by discharging a droplet of a molten metal toward the surface of the metal strip, using a nozzle system configured to discharge the droplet of the molten metal from a nozzle due to an action of the Lorentz force generated on the molten metal by sending an electric current to the molten metal in a chamber, the chamber being applied with magnetic flux in a given direction, while the electric current sent in a direction perpendicular to the given direction. 1. An apparatus for continuous hot-dip metal coating treatment comprising:a coating furnace defining a space of a non-oxidizing atmosphere in which a metal strip continuously travels; anda nozzle system configured to discharge a molten metal droplet toward a surface of the metal strip, a nozzle cartridge defining a chamber through which a molten metal passes, and comprising a nozzle, on a tip of the nozzle cartridge, that defines a discharge port in communication with the chamber;', 'a magnetic flux generation mechanism configured to generate magnetic flux in a given direction in at least a part of the chamber; and', 'a current generation mechanism configured to send an electric current, in a direction perpendicular to the given direction, to the molten metal positioned in the at least a part of the chamber where the magnetic flux is applied,', 'wherein the nozzle system is configured to discharge a droplet of the molten metal from the discharge port toward the surface of the metal strip due to an action of the Lorentz force generated on the molten metal by sending the electric current to the molten metal using the current generation mechanism., 'the nozzle system comprising2 ...

ROLLS OF WINDING EQUIPMENT IN HOT-ROLLING FACTORY

In rolls of winding equipment in a hot-rolling factory, each roll includes a lower cladding layer formed on the surface of the roll barrel and a self-fluxing alloy layer formed on the lower cladding layer by thermal spraying and containing carbide particles dispersed therein. The lower cladding layer includes an Fe-based cladding layer which has a Shore hardness of 60 or greater and which contains, in terms of mass %, 0.1-0.4 C, up to 2.0 Si, up to 3.0 Mn, 1.0-15.0 Cr, and 2.5-5.0 Ni. The lower cladding layer further contains one or more of Mo, V, and Co, the contents of Mo, V, and Co being 0.1-5.0 mass %, 0.1-3.0 mass %, and 0.5-5.0 mass %, respectively. 1. A roll of winding equipment in a hot-rolling factory , the roll including a lower cladding layer formed on a surface of a barrel of the roll and a self-fluxing alloy layer formed on the lower cladding layer by thermal spraying and containing carbide particles dispersed therein , whereinthe lower cladding layer includes an Fe-based cladding layer which has a Shore hardness of 60 or more and contains 0.1 to 0.4 mass % C, 2.0 mass % or less Si, 3.0 mass % or less Mn, 1.0 to 15.0 mass % Cr, and 2.5 to 5.0 mass % Ni.2. The roll of winding equipment in a hot-rolling factory according to claim 1 , wherein the lower cladding layer further contains one or more of Mo claim 1 , V claim 1 , and Co claim 1 , and contents of Mo claim 1 , V claim 1 , and Co are 0.1 to 5.0 mass % claim 1 , 0.1 to 3.0 mass % claim 1 , and 0.5 to 5.0 mass % claim 1 , respectively.3. The roll of winding equipment in a hot-rolling factory according to claim 1 , wherein the lower cladding layer has a Shore hardness of 60 or more even when the self-fluxing alloy thermally-sprayed layer is fused a plurality of times. The present invention relates to rolls of winding equipment in a hot-rolling factory, and in particular, a composition of a coating layer which coats the surface of each roll.Rolls provided in winding equipment in a hot-rolling factory ...

Use of Specially Coated Powdered Coating Materials and Coating Methods Using Such Coating Materials

The present invention relates to the use of a particle-containing powdered coating material, wherein the surface of the particles is at least partially covered with a coating additive, in cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying. Furthermore, the present invention relates to coating methods, in particular the above-named methods, using the powdered coating material according to the invention. 1. A process for producing a coating comprising:introducing a particle-containing powdered coating material in a coating method selected from the group consisting of cold gas spraying, flame spraying, high-speed flame spraying, thermal plasma spraying and non-thermal plasma spraying, wherein the particles on the surface are at least partially covered with at least one coating additive which has a boiling point or decomposition temperature of below 500° C.2. The process according to claim 1 , wherein the weight proportion of the at least one coating additive is at least 0.01 wt.-% claim 1 , relative to the total weight of the coating material and the coating additive.3. The process according to claim 1 , wherein the weight proportion of the at least one coating additive at most 80 wt.-% claim 1 , relative to the total weight of the coating material and the coating additive.4. The process according to claim 1 , wherein the particles comprise metal particles claim 1 , and the metal is selected from the group which consists of silver claim 1 , gold claim 1 , platinum claim 1 , palladium claim 1 , vanadium claim 1 , chromium claim 1 , manganese claim 1 , cobalt claim 1 , germanium claim 1 , antimony claim 1 , aluminum claim 1 , zinc claim 1 , tin claim 1 , iron claim 1 , copper claim 1 , nickel claim 1 , titanium claim 1 , silicon claim 1 , alloys and mixtures thereof.5. The process according to claim 1 , wherein the carbon content of the powdered coating material is from 0.01 wt.-% to 15 wt.-% claim 1 , in ...

METAL OXIDE TARGET AND METHOD FOR PRODUCING SAID METAL OXIDE TARGET

A sputtering target for the production of layers such as optical layers, the layers produced by the target, and a method for producing the target are described. In addition to Si or a combination of Si and Al, the sputtering target contains metal oxide(s), a combination of at least two metal oxides, or a combination containing at least one metal oxide in the form of an alloy or in the form of a mixture. The sputtering target has a metal oxide fraction generated by the Si and Al and the metal oxide(s) or the combination thereof. Preferably, the metal oxide in the sputtering target is a metal oxide selected from ZrO, TaO, YO, HfO, CaO, MgO, CeO, AlO, TiOand NbO. 116-. (canceled)17. A sputtering target for producing layers , wherein the target comprises the elements Si and Al or an Si—Al alloy and at least one metal oxide , at least one combination of at least two metal oxides , or a combination comprising at least one metal oxide in the form of an alloy or in the form of a mixture , wherein a sputtering target having a metal oxide fraction is generated by the Si and Al or the alloy thereof and by the at least one metal oxide or the combination thereof.18. The sputtering target according to claim 17 , wherein the at least one metal oxide is selected from ZrO claim 17 , TaO claim 17 , YO claim 17 , HfO claim 17 , CaO claim 17 , MgO claim 17 , CeO claim 17 , AlO claim 17 , TiOand NbO.19. The sputtering target according to claim 17 , wherein the target comprises a combination of ZrOand YO.20. The sputtering target according to claim 17 , wherein the target has an aluminum content ranging from 1 to 35 at %.21. The sputtering target according to claim 17 , wherein the target has a metal oxide content ranging from 10 to 50 mol %.22. The sputtering target according to claim 17 , wherein the target comprises an oxide alloy ZrO:YOhaving a YOfraction ranging from 4 to 8 mol %.23. A sputtering target for producing layers claim 17 , wherein the target comprises the element Si or ...

SPUTTERING TARGET AND METHOD OF PRODUCING SPUTTERING TARGET

A sputtering target of the present invention is a sintered body containing: 0.5 at % to 10 at % of at least one metal element selected from Ni and Al; 0.01 ppm by weight to 10000 ppm by weight of B or P; and a balance including Si and inevitable impurities, in which the sintered body has a volume resistivity of 10 Ω·cm or lower, a theoretical density ratio of 85% to 99%, and a bending strength of 65 N/mmor higher.

COVETIC MATERIALS

This disclosure provides a graded composition including at least a first, second, and third material property zone each having a crystallographic configuration distinct from other zones. In some implementations, the graded composition has a first material in the first material property zone including a metal, the first material composed of metallic bonds between metal atoms present in the first material property zone; a second material that at least partially overlaps the first material in the first material property zone including carbon, the second material composed of covalent bonds between the carbon in the second material and the metal in the first material; and, a third material that at least partially overlaps the second material property zone including carbon, the third material composed of covalent bonds between the carbon of the third material. Each crystallographic configuration may include a cubic crystallographic lattice, a hexagonal lattice, a face or body-centered cubic lattice.

SELF-HEALING COATINGS FOR OIL AND GAS APPLICATIONS

A coated article comprises a substrate and a self-healing coating disposed on a surface of the substrate, the self-healing coating comprising a metallic matrix; and a plurality of micro- or nano-sized particles dispersed in the metallic matrix; the micro- or nano-sized particles comprising an active agent disposed in a carrier comprising a micro- or nano-sized metallic container, a layered structure, a porous structure, or a combination comprising at least one of the foregoing. 1. A coated article comprising:a substrate; anda self-healing coating disposed on a surface of the substrate; a metallic matrix; and', 'a plurality of micro- or nano-sized particles dispersed in the metallic matrix;, 'the self-healing coating comprising'}the micro- or nano-sized particles comprising an active agent disposed in a carrier comprising a layered structure, a porous structure, or a combination comprising at least one of the foregoing.2. The coated article of claim 1 , wherein the micro- or nano-sized particles comprise an active agent intercalated between layers of a material having a layered structure.3. The coated article of claim 2 , wherein the material having a layered structure comprises a hydrotalcite claim 2 , nanoclay claim 2 , zeolite claim 2 , metal organic frameworks (MOF) claim 2 , an oxide layered material claim 2 , or a combination comprising at least one of the foregoing.4. The coated article of claim 1 , wherein the micro- or nano-sized particles comprise an active agent adsorbed or absorbed in a material having a porous structure.5. The coated article of claim 4 , wherein the material having a porous structure comprises nanoclay claim 4 , a zeolite claim 4 , a molecular sieve claim 4 , a metal organic framework (MOF) claim 4 , or a combination comprising at least one of the foregoing.6. The coated article of claim 1 , wherein the active agent comprises a corrosion inhibitor claim 1 , a scale inhibitor claim 1 , or a combination comprising at least one of the ...

HIGH BORON HARDFACING ELECTRODE

Electrodes for depositing hardfacing alloys containing boron, carbon, chromium, manganese, and silicon on the surface of metal components that are subjected to high thermal and mechanical stresses. The deposited hardfacing alloys have from about 2.5 to about 14.0 atomic weight percent boron and have a hardness on the Rockwell “C” scale of at least about 65 HRC in the first layer of the weld deposit. 1. An electrode for depositing a hardfacing alloy for application to a metal surface , the hardfacing alloy comprising by atomic weight percent electrode:from about 2.5 to about 14.0 percent boron;from about 15.0 to about 26.0 percent chromium;from about 14.0 to about 25.0 percent carbon;from about 0.75 to about 3.0 percent manganese;from about 0.75 to about 3.0 percent silicon;and the balance iron.2. The hardfacing alloy deposited by the electrode of claim 1 , wherein said boron comprises from about 4.0 to about 13 percent.3. The hardfacing alloy deposited by the electrode of claim 2 , wherein said boron comprises from about 7.0 to about 12 percent.4. The hardfacing alloy deposited by the electrode of claim 2 , wherein said boron comprises about 4.42 atomic percent and said alloy has a hardness on the Rockwell “C” scale of at least about 65 HRC.5. The hardfacing alloy deposited by the electrode of claim 2 , wherein said boron comprises about 4.08 percent and said alloy has a hardness on the Rockwell “C” scale of at least about 65 HRC.6. The hardfacing alloy deposited by the electrode of claim 4 , wherein said chromium comprises about 16.69 percent claim 4 , said carbon comprises about 14.81 percent claim 4 , said manganese comprises about 1.71 percent claim 4 , and said silicon comprises about 1.01 percent.7. The hardfacing alloy deposited by the electrode of claim 5 , wherein said chromium comprises about 16.81 percent claim 5 , said carbon comprises about 17.67 percent claim 5 , said manganese comprises about 1.66 percent claim 5 , and said silicon comprises about 1. ...

ELECTROPLATING CONDUCTOR ROLL

The purpose of the present invention is to provide an electroplating conductor roll with excellent high temperature abrasion resistance and corrosion resistance and excellent high temperature hardness. In an electroplating conductor roll, a composite carbide cermet-based thermally sprayed coating, which includes a composite carbide of WC and CrC, and a ternary intermetallic compound binder metal of Cr, Ni and W, is formed on the surface of a metal roll. When the thermally sprayed coating is 100 mass %, the content of the composite carbide is 55-93 mass % and the content of the ternary intermetallic compound is 7-45 mass %. When the composite carbide is 100 mass %, the content of WC is 64-85 mass % and the content of CrCis 15-36 mass %. 1. A conductor roll for electroplating , comprising a composite carbide cermet-based thermally-sprayed coating formed on a surface of a metal roll , the composite carbide cermet-based thermally-sprayed coating including a composite carbide comprising WC and CrC , and a ternary intermetallic compound comprising Cr , Ni , and W as a binder metal.2. The conductor roll for electroplating according to claim 1 , wherein claim 1 , when the thermally-sprayed coating is 100 mass % claim 1 , the composite carbide is contained in an amount of 55 to 93 mass % claim 1 , and the ternary intermetallic compound is contained in an amount of 7 to 45 mass %.3. The conductor roll for electroplating according to claim 1 , wherein claim 1 , when the composite carbide is 100 mass % claim 1 , the WC is contained in an amount of 64 to 85 mass % claim 1 , and the CrCis contained in an amount of 15 to 36 mass %. The present invention relates to a conductor roll for electroplating.In an electroplating line of cold-rolled steel sheets, a plating treatment is performed through a series of processes including an alkali washing process, a pickling process, a plating process, a washing process, and a chemical treatment process while conveying a cold-rolled steel ...

Abradable Material

A blade outer airseal comprising a body having: an inner diameter (ID) surface; an outer diameter (OD) surface; a leading end; a trailing end; a metallic substrate; and a coating system atop the substrate along at least a portion of the inner diameter surface. At least over a first area of the inner diameter surface, the coating system comprises an abradable layer comprising a metallic matrix and a filler. The filler forms at least 20% by volume of the abradable layer with agglomerates or aggregates of oxide particles, the oxide particles having a D50 size ≤200 nm. 117.-. (canceled)19. The method of wherein the D50 size is:10 nm to 50 nm.20. The method of wherein:the metallic matrix is sprayed from a source having particles of the matrix with a D50 size of 22-90 micrometers.21. The method of wherein:the filler is sprayed from the source having the aggregates.22. The method of wherein:the particles have a D50 size ≤200 nm form at least 50 weight percent of the aggregates.23. The method of further comprising forming the aggregates by calcining and sintering agglomerates.24. The method of further comprising forming the agglomerates by drying a slurry.25. The method of wherein the filler comprises:alumina, silica, titania, zirconia, hafnia, dysprosia, gadolinia, yttria, magnesia, nickel oxide, and/or chromia forming at least 40% by volume of the abradable layer.26. The method of wherein the filler comprises:alumina and magnesia forming aggregates that occupy at least 40% by volume of the abradable layer.27. The method of wherein:the magnesia forms 0.1% to 2% weight percent of the total of alumina and magnesia.28. The method of wherein the metallic matrix comprises an MCrAlY.29. The method of wherein the metallic matrix comprises an MCrAlY.30. The method of wherein the filler comprises:alumina, silica, titania, zirconia, hafnia, dysprosia, gadolinia, yttria, magnesia, nickel oxide, and/or chromia forming at least 40% by volume of the abradable layer.31. The method of ...

NEW MATERIAL FOR HIGH VELOCITY OXY FUEL SPRAYING, AND PRODUCTS MADE THEREFROM

The inventors have developed a new alloy which is useful in HVOF-spraying of a substrate, such as plungers which are used in glass manufacture. When coated with said alloy, these parts display high wear resistance and consequently longer lifetime. 1. A metal powder suitable for a HVOF spraying process , the powder consisting of (all percentages in wt %) carbon 2.2-2.85; silicon 2.1-2.7; boron 1.2-13; iron 1.3-2.6; chromium 5.7-8.5; tungsten 32.4-33.6; cobalt 4.4-5.2; the balance being nickel.2. Metal powder according to claim 1 , the powder consisting of carbon 2.3-2.7; silicon 2.15-2.6; boron 1.4-1.6; iron 1.5-2.05; chromium 7.3-7.5; tungsten 32.4-33.6; cobalt 4.4-5.2; the balance being nickel.3. Metal powder according to claim 1 , the powder having a particle size of 20-53μm as measured by sieve analysis.4. Method for coating a surface by high velocity oxy fuel spraying claim 1 , wherein the powder according to is used.5. Component manufactured by the method according to . Thermal surfacing with self-fluxing nickel based alloys plays an important role in the wear protection of tools in the glass container industry. Bottle machine tools work under very severe conditions, subjected to both wear, corrosion and fast thermal cycling.Major properties of self-fluxing nickel based alloys are good abrasive resistance and good corrosion resistance at high temperatures. This has led to the extensive use of nickel alloys for surfacing cast iron parts in the glass bottle manufacturing industry. Hardfacing processes with powder welding, Flame spraying, High velocity oxy-fuel (HVOF) spraying and PTA welding use self-fluxing powder in the production of new molds, plungers, baffles, neck rings, plates etc. as well as for repair and maintenance.Essential elements in a self-fluxing alloy are silicon (Si) and boron (B). These two elements have a very strong influence on the liquidus temperature. The melting temperature for pure nickel (Ni) is 1455° C. The alloy liquidus can be ...

ROLL FOR WINDING EQUIPMENT IN HOT ROLLING FACTORY

A roll for winding equipment in a hot rolling factory is obtained by forming a base build-up layer on the surface of the body of the roll and forming on the base build-up layer a self-fluxing alloy thermal spraying layer, in which carbide particles are dispersed. The base build-up layer has a Shore hardness of 60 or higher and includes an iron-based build-up layer that contains, in terms of mass %, 0.4-1.0% of C, 2.0% or less of Si, 3.0% or less of Mn, 1.0-15.0% of Cr and 0.5-5.0% of Nb. 1. A roll of winding equipment in a hot-rolling factory , the roll including a lower cladding layer formed on a surface of a barrel of the roll and a self-fluxing alloy layer formed on the lower cladding layer by thermal spraying and containing carbide particles dispersed therein , whereinthe lower cladding layer includes an Fe-based cladding layer which has a Shore hardness of 60 or more and contains 0.4 to 1.0 mass % C, 2.0 mass % or less Si, 3.0 mass % or less Mn, 1.0 to 15.0 mass % Cr, and 0.5 to 5.0 mass % Nb.2. The roll of winding equipment in a hot-rolling factory according to claim 1 , wherein the lower cladding layer further contains one or more of Mo claim 1 , V claim 1 , Co claim 1 , W and Ti claim 1 , and contents of Mo claim 1 , V claim 1 , Co claim 1 , W and Ti are 0.1 to 5.0 mass % claim 1 , 0.1 to 3.0 mass % claim 1 , 0.5 to 5.0 mass % claim 1 , 0.5 to 5.0 mass % and 0.1 to 1.0 mass % claim 1 , respectively.3. The roll of winding equipment in a hot-rolling factory according to claim 1 , wherein the lower cladding layer has a Shore hardness of 60 or more even when the self-fluxing alloy thermally-sprayed layer is fused a plurality of times. The present invention relates to rolls of winding equipment in a hot-rolling factory, and in particular, a composition of a coating layer which coats the surface of each roll.Rolls provided in winding equipment in a hot-rolling factory are worn by sliding with a threading material and impact during entry of the threading material. ...

METHODS AND SYSTEMS FOR ENGINE BLOCK THERMAL CONDUCTIVITY

Methods and systems are provided for coatings of a portion of an engine block shaping a combustion chamber. In one example, the engine block includes a first coating with a thermal conductivity higher than a conductivity of the engine block arranged in an upper region of the combustion chamber and a second coating with a thermal conductivity lower than the conductivity of the engine block arranged in a lower region of the combustion chamber, and where the second coating touches the first coating. 1. An engine block comprising:a first coating arranged on interior surfaces of a cylinder near a top-dead center position of a piston and a second coating arranged on the interior surfaces near a bottom-dead center position of the piston, the first coating comprising a hypereutectic aluminum-silicon alloy and the second coating comprising an iron-based alloy with a thermal conductivity lower than the first coating and the interior surfaces.2. The engine block of claim 1 , wherein the interior surfaces comprise aluminum or an aluminum alloy claim 1 , and where an interior surfaces thermal conductivity is less than a first coating thermal conductivity is and greater than a second coating thermal conductivity.3. The engine block of claim 1 , wherein a silicon content of the first coating is greater than 10%.4. The engine block of claim 1 , wherein the second coating comprises a portion with an iron-carbon alloy comprising between 0.5 to 2% carbon.5. The engine block of claim 1 , wherein the second coating comprises between 20 to 50% iron claim 1 , and where the iron-based alloy further comprises one or more of chromium claim 1 , tungsten claim 1 , niobium claim 1 , boron claim 1 , molybdenum claim 1 , manganese claim 1 , and carbon.6. The engine block of claim 1 , wherein the first coating is arranged on the interior surfaces of the cylinder at the top-dead center position and extends up to an upper threshold position equal to a 50° rotational angle value of the piston.7. The ...

STEAM TURBINE ROTOR BLADE, METHOD FOR MANUFACTURING STEAM TURBINE ROTOR BLADE, AND STEAM TURBINE

A steam turbine rotor blade for forming a turbine rotor cascade of a steam turbine includes a rotor blade main body having a blade portion, a blade base portion and a first coupling portion, which has first facing surfaces, provided on opposite end sides of the blade portion, and a second coupling portion provided in an intermediate portion of the blade portion and having second facing surfaces. The steam turbine rotor blade also includes a coating layer which is made of a Co-based alloy having a single composition on a surface of at least one of the first and facing surfaces with a diffusion layer having a thickness of 10 μm or less provided between the coating layer and the surface.