КОМПОЗИТНЫЕ МАТЕРИАЛЫ С УЛУЧШЕННЫМИ МЕХАНИЧЕСКИМИ СВОЙСТВАМИ ПРИ ПОВЫШЕННЫХ ТЕМПЕРАТУРАХ

FIELD: production of composite materials.SUBSTANCE: present invention relates to a composite material containing a matrix of aluminum alloy and filler particles. Matrix contains, wt %: Si 0.05–0.30; Fe 0.04–0.6; Mn 0.80–1.50; Mg 0.80–1.50; the rest is aluminum and unavoidable impurities, and the filler particles are dispersed in the matrix. Matrix may contain Cu and/or Mo. As filler composite material contains BC, as well as one or more additives from group: Ti, Cr, V, Nb, Zr, Sr, Sc and any their combination.EFFECT: technical result is obtaining material with high strength at high temperatures.20 cl, 2 dwg, 7 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК C22C 32/00 C22C 21/08 C22C 21/00 C22C 21/06 (11) (13) 2 722 378 C2 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 32/00 (2019.05); C22C 21/08 (2019.05); C22C 21/00 (2019.05); C22C 21/06 (2019.05) (21)(22) Заявка: 2017137742, 29.04.2016 (24) Дата начала отсчета срока действия патента: Дата регистрации: 29.05.2020 01.05.2015 US 62/155,556 (43) Дата публикации заявки: 03.06.2019 Бюл. № 16 (45) Опубликовано: 29.05.2020 Бюл. № 16 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.12.2017 (56) Список документов, цитированных в отчете о поиске: WO 2013133978 A1, 12.09.2013. WO 2014075194 A1, 22.05.2014. EP 1956107 A1, 13.08.2008. WO 2014201565 A1, 24.12.2014. 2 7 2 2 3 7 8 (73) Патентообладатель(и): ЮНИВЕРСИТЕ ДЮ КВЕБЕК А ШИКУТИМИ (CA) Приоритет(ы): (30) Конвенционный приоритет: R U 29.04.2016 (72) Автор(ы): ЛОРЭН, Жан-Алан (CA), ПАРСОН, Николя С. (CA), РУ, Марио (CA), ЧЭНЬ, Сяо-Гуан (CA), ЛЮ, Кунь (CA) CA 2016/050498 (29.04.2016) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 7 2 2 3 7 8 WO 2016/176766 (10.11.2016) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) КОМПОЗИТНЫЕ МАТЕРИАЛЫ С УЛУЧШЕННЫМИ МЕХАНИЧЕСКИМИ СВОЙСТВАМИ ПРИ ...

Смешанная режущая керамика и способ изготовления режущей пластины из смешанной режущей керамики

Изобретение относится к порошковой металлургии, в частности к изготовлению режущих пластин из смешанной керамики. Может использоваться для оснащения режущего инструмента для обработки труднообрабатываемых сталей и сплавов, а также высокопрочных и серых чугунов на металлообрабатывающих станках. Смешанная режущая керамика содержит, мас. %: оксид алюминия 27-30, оксид кремния SiО2 27-31, карбид тантала TaC 9-10, карбид титана TiC 23-24, карбид вольфрама WC 9-10. Смесь оксида кремния и оксида алюминия прокаливают при температуре 1750-1760°С, подвергают тонкому виброизмельчению на виброустановке в течение 3,5-4,5 ч и сушат. После сушки вводят карбид титана, карбид тантала, карбид вольфрама и осуществляют смешивание до их равномерного распределения по объему и образования водной суспензии, в которую вводят раскисляющие добавки катализаторов в виде оксида магния МgO, оксида кальция СаО, оксида натрия Nа2O, и подвергают распылительной сушке с получением смеси. Полученную смесь прессуют с формированием ...

ФУНКЦИОНАЛЬНО-ГРАДИЕНТНЫЙ ЛИСТ ИЗ КОМПОЗИЦИОННОГО МАТЕРИАЛА С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ

... 1. Способ изготовления функционально-градиентного изделия из композиционного материала с металлической матрицей, включающий этапы, на которых: ! подают расплавленный металл, содержащий твердые частицы, на пару движущихся литейных поверхностей, при этом размер твердых частиц составляет, по меньшей мере, около 30 мкм; ! отверждают расплавленный металл при его перемещении между движущимися литейными поверхностями с формированием изделия, содержащего первый твердый наружный слой, второй твердый наружный слой и полутвердый центральный слой между ними, при этом полутвердый центральный слой имеет более высокую концентрацию твердых частиц, чем первый или второй наружные слои; ! отверждают полутвердый центральный слой с формированием твердого металлического изделия, состоящего из наружных слоев и затвердевшего центрального слоя после прохождения полутвердым центральным слоем зазора между парой движущихся литейных поверхностей; и ! извлекают твердое металлическое изделие из зазора между литейными ...

РЕЖУЩИЙ ИНСТРУМЕНТ

FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, namely to production of cutting tool containing hard-alloy substrate, which contains controlled amount of finely dispersed eta-phase. Method of making a cutting tool comprising a hard-alloy substrate comprises the steps of: providing a first sintered hard-alloy body containing WC, a metal binder phase, wherein the metal of the binding phase is selected from one or more of Co, Fe and Ni, and the eta-phase containing carbides MeC and/or MeC, where Me is selected from W, Mo and one or more metals of the binding phase, wherein the sub-stoichiometric content of carbon in the solid alloy ranges from −0.30 to −0.16 % by weight, heat treatment of said first sintered hard-alloy body at temperature of 500 to 830 °C for period of 1 to 24 hours.EFFECT: cutting tool made using the disclosed method has high resistance to flanges cracking.15 cl, 3 dwg, 4 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 726 135 C1 (51) МПК C22C 1/10 (2006.01) C22C 29/08 (2006.01) B22F 3/12 (2006.01) B22F 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 1/1068 (2020.02); C22C 29/08 (2020.02); B22F 3/12 (2020.02); B22F 5/00 (2020.02) (21)(22) Заявка: 2019120816, 20.12.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): САНДВИК ИНТЕЛЛЕКЧУАЛ ПРОПЕРТИ АБ (SE) Дата регистрации: 09.07.2020 (56) Список документов, цитированных в отчете о поиске: EP 2691198 B8, 18.03.2015. EP 493352 B1, 15.02.1995. RU 2135328 C1, 27.08.1999. EP 1048750 A1, 02.11.2000. US 4842482 A1, 11.04.1989. (45) Опубликовано: 09.07.2020 Бюл. № 19 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 22.07.2019 (86) Заявка PCT: EP 2016/081929 (20.12.2016) 2 7 2 6 1 3 5 Приоритет(ы): (22) Дата подачи заявки: 20.12.2016 R U 20.12.2016 (72) Автор(ы): ГАРСИА, Хосе, Луис (SE), САРАЙВА, Марта (SE) 2 7 2 6 1 3 5 R U WO 2018/113923 (28.06.2018) C 1 C 1 (87) Публикация заявки ...

VERBUNDWERKSTOFF AUS BORHALTIGER KERAMIK UND ALUMINIUMMETALL UND VERFAHREN ZU DESSEN HERSTELLUNG

Aluminum-matrix material for building contains concentration gradient of magnesium silicide

The aluminum-matrix material contains reinforcing components embedded in it, which include a magnesium silicide content of 8-30 wt.%. A concentration gradient of magnesium silicide is present in the material. The magnesium silicide is in the form of embedded particles of increasing concentration from bottom to top over the cross section of the material.

Improved method of making shaped bodies of hard material

Hard substances, e.g. carbides, silicides, nitrides or borides of tungsten, molybdenum titanium, vanadium, zirconium, cerium, silicon, boron, aluminium, beryllium or chromium, which have been fused in the presence of atomic hydrogen as described in Specification 478,016, [Group III], are powdered and mixed with powdered metals, e.g. of the iron group or alloys thereof with vanadium, chromium, tungsten, manganese or molybdenum and heated in a refractory mould to above the melting point of the bonding metal. Pressure may be applied. The products are suitable for inserts for core drills and deep well boring tools.

Coated diamonds for use in impregnated diamond bits

Hard metal materials

Hard metal materials

Hard metal materials

Hard metal materials

PROCEDURE FOR THE PRODUCTION OF A SILICON CARBIDE KOMPOSITS

COMPOSITE MATERIALS FROM METALLIC MASSIF GLASS AND GRAPHITE

PROCEDURE FOR THE PRODUCTION OF CARBIDES, BORIDE, SILIZIDE OR NITRIDES HIGH-FUSIBLE INORGANIC MATERIALS

VERFAHREN ZUR HERSTELLUNG VON METALLSCHÄUMEN UND METALLSCHAUM

COMPOSITE MATERIAL MADE OF BORHALTIGER CERAMIC(S) AND ALUMINUM METAL AND PROCEDURE FOR ITS PRODUCTION

Procedure for the production of a molybdänhaltigen alloy

Poured wearing parts from hard alloys and procedures for the production the same

PROCEDURE FOR THE PRODUCTION OF A COMPOSITE MATERIAL

Method for manufacturing a composite material

PCT No. PCT/NL96/00102 Sec. 371 Date Nov. 25, 1997 Sec. 102(e) Date Nov. 25, 1997 PCT Filed Mar. 6, 1996 PCT Pub. No. WO96/27566 PCT Pub. Date Sep. 12, 1996The invention relates to a method for manufacturing a composite material wherein by dynamic densification of an amount of granular or powdered relatively brittle material or a mixture of one or more of such materials, a continuous porous product is obtained, whereafter, by infiltration thereof with a second material, the brittle material particles are embedded in a continuous network of the second material. The invention further relates to a composite comprising ceramic particles embedded in a continuous matrix of a second material, obtainable by a method according to the invention, and to products manufactured from such composite.

CERAMIC/METAL COMPOSITE MATERIAL AND METHOD FOR MAKING SAME

An ceramic/metal composite material is disclosed which is fully reacted with aluminum. The composite is made from a ceramic preform, such as silicon carbide, having a binding agent, such as silica, that is contacted with a metal mixture or alloy, such as aluminum/silicon, that reacts with the bindi ng agent to form a ceramic/metal composite material. Also disclosed is a method of making the composite material and articles made incorporating the materia l.

COMPOSITE MATERIAL HAVING IMPROVED MECHANICAL PROPERTIES AT ELEVATED TEMPERATURES

The present disclosure concerns composite material having improved strength at elevated temperatures. The composite material comprises a matrix of an aluminum alloy (comprising, in weight percent, Si 0.05 - 0.30, Fe 0.04 - 0.6, Mn 0.80 - 1.50, Mg 0.80 -1.50 and the balance being aluminum and unavoidable impurities) as well as particles of a filler material dispersed within the matrix. The matrix can optionally comprise Cu and/or Mo. In some embodiments, the composite material comprises, as a filler material, B4C as well as an additive selected from the group consisting of Ti, Cr, V, Nb, Zr, Sr, Sc and any combination thereof. The present disclosure also provides processes for making such composite materials.

Verfahren zur Herstellung von beliebig grossen Mengen der Karbide der Wolframgruppe.

Verfahren zur Herstellung sehr harter, gegen Bruch widerstandsfähiger Metallegierungen für Werkzeuge.

Verfahren zur Herstellung feinkristalliner sehr harter Körper.

Verfahren zur Herstellung von Hartmetallen.

Gegossener Verschleissteil aus einer Hartlegierung und Verfahren zur Herstellung eines solchen

Verfahren zur Herstellung von Wolframcarbid-Kobalt-Mischungen

Process for producing cast inorganic materials of high melting point

Aluminum alloy for automotive engine vibration damping component and die casting method.

Die Erfindung betrifft eine Aluminiumlegierung für eine Schwingungsdämpfungskomponente eines Automobilmotors, dadurch gekennzeichnet, dass die Aluminiumlegierung Nano-ZrB2-Keramikpartikeln und folgende Elementen enthält: 8.0 Gew.% ≤ Si ≤ 11.0 Gew.%, 2.0 Gew.% ≤ Cu ≤ 3.5 Gew.%, 3.0 Gew.% ≤ Zr ≤ 5.0 Gew.%, 0.5 Gew.% ≤ B ≤ 1.0 Gew.%, 1.5 Gew.% ≤ Zn ≤ 2.5 Gew.%, 0.5 Gew.% ≤ Mg ≤1.0 Gew.%, 1.0 Gew.% ≤ Fe ≤ 1.5 Gew.%, 0.5 Gew.% ≤ Mn ≤ 1.0 Gew.%, 0.5 Gew.% ≤ Ni ≤ 1.0 Gew.%, 0.1 Gew.% ≤ Er ≤ 0.15 Gew.%, Restmenge Al. Die Erfindung betrifft auch ein Druckgussverfahren zur Herstellung eines Druckgussteils aus einer Aluminiumlegierung für eine Schwingungsdämpfungskomponente eines Automobilmotors, ...

БУРОВОЕ ДОЛОТО

Изобретение относится к композициям и способам изготовления корпуса долота для бурения скважины. Корпус долота может содержать твердые частицы, которые содержат по меньшей мере одно из следующего: карбид, нитрид, борид и оксид, а также их твердые растворы и связующее, которое связывает названные твердые частички. Связующее может содержать по меньшей мере один металл, выбранный из кобальта, никеля, железа, и возможно по меньшей мере один компонент, который снижает температуру плавления, выбранный из карбида переходного металла с содержанием в диапазоне от 30 до 60 массовых процентов, бора с содержанием в диапазоне до 10 массовых процентов, кремния с содержанием в диапазоне до 20 массовых процентов, хрома с содержанием в диапазоне до 20 массовых процентов, и марганца с содержанием в диапазоне до 25 массовых процентов от общей массы связующего. Кроме этого, твердые частицы могут содержать по меньшей мере одно из следующего: частицы литого карбида, частички карбида переходного металла, который ...

МАТЕРИАЛЫ НА ОСНОВЕ ЖЕЛЕЗА ДЛЯ НАПЛАВКИ ТВЕРДЫМ СПЛАВОМ

Описаны способ изготовления сварочного расходуемого железного материала, содержащего карбид, и способ создания поверхностного упрочнения на подходящей основе с использованием упомянутого расходного материала. Способ изготовления расходного материала содержит следующие этапы: получают гомогенный расплав с требуемой концентрацией основных элементов, таких как углерод, хром и марганец, для упомянутого расходного материала, и получают из упомянутого расплава расходуемый материал.

HARD-ALLOY MATERIALS

High elasticity hyper eutectic aluminum alloy and method for manufacturing the same

FUNCTIONALLY GRADED METAL MATRIX COMPOSITE SHEET

Method of making a functionally graded metal matrix composite (MMC) product (20) having a solid central layer (18) enriched with particulate matter (10) sandwiched between outer shells (6, 8) by providing molten metal (M) containing particulate matter (10) to a pair of advancing casting surfaces (D1, D2), solidifying the molten metal (M), and withdrawing the MMC product (20) from between the casting surfaces (D1, D2). The solid central layer (18) contains a higher concentration of particulate matter (10) than either of the outer layers (6, 8). The MMC product (20) combines easy mechanical working characteristics and appearance of the metallic outer layers with the enhanced properties provided by the solid central layer (18).

Polycrystalline diamond compact and method of making same

A polycrystalline diamond compact includes a substrate and a polycrystalline diamond table attached to the substrate. The polycrystalline diamond table includes an upper surface and at least one peripheral surface. Diamond grains of the polycrystalline diamond table define a plurality of interstitial regions. The polycrystalline diamond table includes a region having silicon carbide positioned within at least some of the interstitial regions thereof. In an embodiment, the first region extends over only a selected portion of the upper surface and/or at least a portion of the at least one peripheral surface. In another embodiment, the first region substantially contours the upper surface and a chamfer.

Milling cone for a compression crusher

The present invention discloses a composite milling cone for compression crushers, said milling cone comprising a ferrous alloy at least partially reinforced with titanium carbide according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas (2) essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy.

Method of manufacturing a part comprising at least one block made from a dense material consisting of hard particles dispersed in a binding phase: application to cutting or drilling tools.

Procédé pour fabriquer une pièce comprenant au moins un bloc en matériau dense (1, 40, 50) constitué de particules dures, de nature identique ou différente, dispersées dans une phase liante, le matériau dense étant susceptible d'être enrichi localement en phase liante par imbibition d'un matériau d'imbibition, caractérisé en ce qu'on dépose sur tout ou partie de la surface du bloc en laissant libre au moins une aire d'imbibition (4) d'une surface (3) du bloc, un matériau de protection (7) capable d'empêcher la migration du matériau d'imbibition à travers les parois sur lesquelles il est déposé et éventuellement de modifier la cinétique de migration de la phase liante dans le bloc, on met l'aire d'imbibition (4) de la surface (3) du bloc (1) au contact d'un matériau d'imbibition (2), puis on soumet le bloc dense au contact du matériau d'imbibition à un cycle thermique adapté constitué d'un chauffage, d'un maintien en température et d'un refroidissement, de façon à faire passer partiellement ...

ФУНКЦИОНАЛЬНО-ГРАДИЕНТНЫЙ ЛИСТ ИЗ КОМПОЗИЦИОННОГО МАТЕРИАЛА С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ

FIELD: metallurgy. SUBSTANCE: functional gradient item (20) from composite material with metal matrix (CMM) has solid central layer (18) enriched with solid particles (10) enclosed between external covers (6, 8). Item is obtained by supplying the molten metal (M) containing solid particles (10) to a pair of moving casting surfaces (D1, D2), curing of molten metal (M) and removing of item (20) from CMM from the gap between casting surfaces (D1, D2). Solid central layer (18) has higher concentration of solid particles (10) than any of external layers (6, 8). EFFECT: item from composite material with metal matrix combines easy metal processing and improved mechanical properties. 13 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 429 936 (13) C2 (51) МПК B22D 11/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009141589/02, 11.04.2008 (24) Дата начала отсчета срока действия патента: 11.04.2008 (73) Патентообладатель(и): АЛКОА ИНК. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 11.04.2007 US 11/734,121 (72) Автор(ы): ТОМЗ Дэвид А. мл. (US), УАЙАТТ-МАЙР Гэйвин Ф. (US), ТИММОНС Дэвид В. (US), УНАЛ Али (US) (43) Дата публикации заявки: 20.05.2011 Бюл. № 14 2 4 2 9 9 3 6 2 4 2 9 9 3 6 R U (56) Список документов, цитированных в отчете о поиске: KARNEZIS Р.А., DURRANT G., CANTOR В., Characterization of reinforcement distribution in cast AL-alloy/SiCp composites, MATERIALS CHARACTERIZATION, 1998, 40(2), с.97-109. SU 1838441 C1, 30.08.1993. US 6672368 A, 06.01.2001. US 5514228 A, 04.05.1996. RU 2025527 C1, 30.12.1994. US 5942057 A, 24.08.1999. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 11.11.2009 (86) Заявка PCT: US 2008/060060 (11.04.2008) (87) Публикация заявки РСТ: WO 2008/128061 (23.10.2008) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат. пов. А.В.Мицу, рег.№ 364 (54) ФУНКЦИОНАЛЬНО- ...

БУРОВОЕ ДОЛОТО

... 1. Корпус долота, коническая шарошка, вставная коническая шарошка или шарошка, содержащие материал, включающий твердые частицы, содержащие, по меньшей мере, один из следующих материалов: карбид, нитрид, борид, силицид, оксид и их твердые растворы, и связку, содержащую, по меньшей мере, один металл, выбранный из кобальта, никеля, железа и их сплавов.2. Корпус долота, коническая шарошка, вставная коническая шарошка или шарошка по п.1, в которых связка дополнительно содержит, по меньшей мере, один компонент, понижающий температуру плавления, выбранный из, по меньшей мере, одного из следующих материалов: карбид переходного металла, борид или силицид с содержанием до 60 вес.%, переходный металл с содержанием до 50 вес.%, бор с содержанием до 10 вес.%, кремний с содержанием до 20 вес.%, хром с содержанием до 20 вес.% и марганец с содержанием до 25 вес.% от общего веса связки.3. Корпус долота, коническая шарошка, вставная коническая шарошка или шарошка по п.2, в которых компонент, понижающий температуру ...

ЛИТАЯ ДЕТАЛЬ С ПОВЫШЕННОЙ ИЗНОСОСТОЙКОСТЬЮ

... 1. Литая деталь с повышенной износостойкостью, структурно усиленная с помощью, по меньшей мере, одного компонента, выбранного из группы карбидов металлов, нитридов металлов, боридов, оксидов металлов и интерметаллических соединений, отличающаяся тем, что указанные компоненты получены посредством реакции на месте из исходных материалов, действующих как реагенты для указанных компонентов, причем указанные реагенты перед литьем помещают в форму (1) для отливки в виде вставок (3) предварительно заданной формы из уплотненных порошков, или в виде пасты (4), реакцию в указанных порошках запускают на месте посредством заливки металла, в результате протекания указанной реакции на месте получают пористый конгломерат, указанный заливаемый в форму металл пропитывает указанный пористый конгломерат, в результате чего достигают включения указанного конгломерата в структуру металла, используемого для отливки, таким образом, получая структурно усиленную литую деталь (2) повышенной износостойкости. 2. Литая ...

Aluminium-copper alloy for casting

Process for the manufacture of castable hard alloys

Castable hard alloys containing carbides of metals or non-metals are made by using as starting material carbon-containing iron alloys such as ferro-molybdenum, ferro-tungsten, ferro-chromium, or iron-boron, with additions of metals such as tungsten, chromium, cobalt, or molybdenum, or of alloys containing boron or silicon, or of tungstic acid, or of molybdenum alloyed with cobalt or chromium. Iron alloys containing respectively 80 per cent of tungsten carbide, 90 per cent of tungsten chromium double carbide, and 87 per cent of chromium carbide, are referred to.

Boron realms, carbon and silicon containing alloy and procedure for their production

Procedure for the production of a powdered, intimate mixture of tungsten carbide and cobalt

VERFAHREN ZUR HERSTELLUNG VON METALLSCHÄUMEN UND METALLSCHAUM

Producing metal foam with stabilizing particles in the metal matrix, comprises: producing a foamable starting material; foaming this starting material; and generating the stabilizing particles during the production of the foamable starting material, in an in-situ reaction of a reactive substance and a molten metal, comprising adding the reactive substance to the molten metal under stirring, mixing, heating to greater than 1023 K, allowing to stand at this temperature for 1-5 hours, and forming spinel as stabilizing particles with a diameter in a range of nanometer to submicrometer. Producing metal foam with stabilizing particles in the metal matrix, comprises: producing a foamable starting material; foaming this starting material; and generating the stabilizing particles during the production of the foamable starting material, in an in-situ reaction of a reactive substance and a molten metal, comprising adding the reactive substance comprising silicon dioxide (2.5-7.5 wt.%, based on the ...

Composite material having improved mechanical properties at elevated temperatures

The present disclosure concerns composite material having improved strength at elevated temperatures. The composite material comprises a matrix of an aluminum alloy (comprising, in weight percent, Si 0.05 - 0.30, Fe 0.04 - 0.6, Mn 0.80 - 1.50, Mg 0.80 -1.50 and the balance being aluminum and unavoidable impurities) as well as particles of a filler material dispersed within the matrix. The matrix can optionally comprise Cu and/or Mo. In some embodiments, the composite material comprises, as a filler material, B ...

HARD METAL MATERIALS

Abstract A hard metal material and a method of manufacturing a component of the hard metal material are disclosed. The hard metal material comprises 5-50 volume % particles of a refractory material dispersed in a host metal. The method comprises forming a slurry of 5-50 volume % particles of the refractory material dispersed in a liquid host metal in an inert atmosphere and pouring the slurry into a mould and forming a casting of the component. 3565797_1 (GHMatters) P83238.AU.1 sX -X :. . s ( s sX -::X~ -...> s:: sX sXs s.S :. .. s , sXs s sXs 0094 2010/01/18 16:46 30 um Figure 1 ...

Additives for improving the castability of aluminum-boron carbide composite material

The present disclosure provides additives capable of undergoing a peritectic reaction with boron in aluminum-boron carbide composite materials. The additive may be selected from the group consisting of vanadium, zirconium, niobium, strontium, chromium, molybdenum, hafnium, scandium, tantalum, tungsten and combination thereof, is used to maintain the fluidity of the molten composite material, prior to casting, to facilitate castability.

EARTH-BORING BITS

... ²²²The present invention relates to compositions and methods for forming a bit ²body for an earth-boring bit. The bit body may comprise hard particles, ²wherein the hard particles comprise at least one carbide, nitride, boride, and ²oxide and solid solutions thereof, and a binder binding together the hard ²particles. The binder may comprise at least one metal selected from cobalt, ²nickel, and iron, and, optionally, at least one melting point reducing ²constituent selected from a transition metal carbide in the range of (30) to ²(60) weight percent, boron up to (10) weight percent, silicon up to (20) ²weight percent, chromium up to (20) weight percent, and manganese up to (25) ²weight percent, wherein the weight percentages are based on the total weight ²of the binder. In addition, the hard particles may comprise at least one of ²(i) cast carbide (WC + W2C) particles, (ii) transition metal carbide particles ²selected from the carbides of titanium, chromium, vanadium, zirconium, ²hafnium ...

PROCESS FOR FORMING METAL-CERAMIC COMPOSITES

... of the Invention A method is taught for the in-situ precipitation of ceramic materials in a metal matrix. By means of the solvent assisted reaction, metal-ceramic composites having highly superior properties may be obtained. The invention involves the reaction of the ceramic forming constituents in a metal solvent medium to provide very finely-dispersed ceramic particles in the metal matrix. Exemplary materials include titanium diboride in an aluminum matrix.

METHOD OF OBTAINING CAST REFRACTORY INORGANIC MATERIALS

METHOD OF OBTAINING CAST REFRACTORY INORGANIC MATERIALS A method of obtaining cast refractor inorganic materials comprises mixing at least one oxide of a metal selected from the IV, V and VI groups of the periodic system with a metallic reducer and a non-metal or an oxide thereof. Then a small portion of the mixture surface is ignited to produce a combustion zone. Combustion is conducted in a gaseous medium under a pressure of 1 to 5,000 atm. The proposed method permits obtaining cast carbides, borides, silicides and nitrides of metals of the IV, V and VI groups of the periodic system, as well as cast hard alloys based thereon. The resulting compounds exhibit high hardness, strength and wear resistance.

EARTH-BORING BITS

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of (30) to (60) weight percent, boron up to (10) weight percent, silicon up to (20) weight percent, chromium up to (20) weight percent, and manganese up to (25) weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC + W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum ...

COPPER INFILTRATED MOLYBDENUM AND/OR TUNGSTEN BASE POWDER METAL ALLOY FOR SUPERIOR THERMAL CONDUCTIVITY

A sintered material for use in an internal combustion engine, such as a valve seat insert, is provided. The material includes a pressed base powder metal mixture and a Cu-rich phase infiltrated in pores of the base powder metal mixture. The base powder metal mixture includes at least one of Mo and W, and at least one additive, such as B, N, and/or C. The amount of the Mo and/or W is 50 wt. % to 85 wt. %, based on the total weight of the material. The at least one additive is present in a total amount of 0.2 to 25 wt. %, based on the total weight of the material, and the Cu-rich phase is present in an amount of 15 wt. % to 50 wt. %, based on the total weight of the material. The material also has a thermal conductivity of at least 70 W/mK.

FUNCTIONALLY GRADED METAL MATRIX COMPOSITE SHEET

Method of making a functionally graded metal matrix composite (MMC) product (20) having a solid central layer (18) enriched with particulate matter (10) sandwiched between outer shells (6, 8) by providing molten metal (M) containing particulate matter (10) to a pair of advancing casting surfaces (D1, D2), solidifying the molten metal (M), and withdrawing the MMC product (20) from between the casting surfaces (D1, D2). The solid central layer (18) contains a higher concentration of particulate matter (10) than either of the outer layers (6, 8). The MMC product (20) combines easy mechanical working characteristics and appearance of the metallic outer layers with the enhanced properties provided by the solid central layer (18).

CAST WEAR PART AND METHOD FOR ITS PRODUCTION

МАТЕРИАЛЫ НА ОСНОВЕ ЖЕЛЕЗА ДЛЯ НАПЛАВКИ ТВЕРДЫМ СПЛАВОМ

Описаны способ изготовления сварочного расходуемого железного материала, содержащего карбид, и способ создания поверхностного упрочнения на подходящей основе с использованием упомянутого расходного материала. Способ изготовления расходного материала содержит следующие этапы: получают гомогенный расплав с требуемой концентрацией основных элементов, таких как углерод, хром и марганец, для упомянутого расходного материала, и получают из упомянутого расплава расходуемый материал.

A manufacturing method of brass having anti-corrosion

cone de moagem de material compósito, processo de fabricação por fundição de um cone de moagem de material compósito e cone de moagem

REINFORCED ROLL AND METHOD OF MAKING SAME

PARTICULATE ALUMINIUM MATRIX NANO-COMPOSITES AND PROCESS FOR PRODUCING THE SAME

The present invention provides a process for reinforced aluminum matrix composite. The aluminum matrix composite is reinforced with compound selected from the group consisting of Titanium carbide, Titanium boride, Vanadium and Zirconium compounds. The process is carried out pneumatically using pressurized carrier gas. The pressurized carrier gas also provides efficient stirring during the process which leads to uniform dispersion of the particulate in the aluminum matrix.

SILICON CARBIDE COMPOSITES AND METHODS FOR MAKING SAME

Cette invention se rapporte à des composites de carbure de silicium améliorés, que l'on produit par un processus d'infiltration et qui possèdent une phase métallique en plus d'une phase de silicium résiduelle. On améliore ainsi non seulement les propriétés telles que la ténacité mécanique, mais, grâce à la conception de la matière infiltrante, on diminue en outre considérablement les quantités d'expansion de cette matière, lors de la solidification, améliorant ainsi les capacités du composite à produire des formes nettes. Des matières infiltrantes à composants multiples peuvent également avoir une température dite "liquidus" inférieure à celle du silicium pur, offrant ainsi à l'opérateur un plus grand contrôle du processus d'infiltration. L'infiltration peut plus particulièrement être effectuée à des températures inférieures, au niveau desquelles des matériaux d'assise ou de barrière moins coûteux mais efficaces peuvent terminer le processus d'infiltration, une fois que la matière infiltrante ...

REINFORCED ROLL AND METHOD OF MAKING SAME

A method of one of manufacturing and maintaining a grinding roll comprises removably attaching an article adapted for use as a wear resistant working surface to an external surface a cylindrical core. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material comprising a metal or a metal alloy. The melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. Hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite wears away when the grinding roll is in use, thereby providing or preserving gaps between the hard elements at a working surface of the roll.

HARD METAL MATERIALS

COMPOSITE WEAR PART

АЛЮМИНИЙ-МЕДНЫЙ СПЛАВ ДЛЯ ЛИТЬЯ

FIELD: chemistry. SUBSTANCE: aluminium-copper alloy for casting, containing in fact insoluble particles, which occupy inter-dendritic regions of the alloy, and free titanium in an amount, sufficient for crushing the granular structure in the casting alloy. The alloy contains, wt %: Cu 3.0-6.0 , Mg 0.0-1.5, Ag 0.0-1.5, Mn 0.0-0.8, Fe 0.0-1.5, Si 0.0-1.5, Zn 0.0-4.0, Sb 0.0-0.5, Zr 0.0-0.5, Co 0.0-0.5, free titanium >0.15-1.0, insoluble particles 0.5-20, Al and inevitable admixtures - the remaining part. The insoluble particles occupy the inter-dendritic regions of the alloy and contain particles of titanium diboride. EFFECT: aluminium-copper alloy possesses high plasticity and tensile strength, as well as fatigue life. 8 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 556 247 C2 (51) МПК C22C 21/12 (2006.01) C22C 1/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012138290/02, 10.02.2011 (24) Дата начала отсчета срока действия патента: 10.02.2011 (72) Автор(ы): ФОРД,Джон (GB), СТОТТ,Уильям (GB) (73) Патентообладатель(и): АЭРОМЕТ ИНТЕРНЭШНЛ ПЛС (GB) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.03.2014 Бюл. № 8 R U 10.02.2010 GB 1002236.6 (45) Опубликовано: 10.07.2015 Бюл. № 19 2008072972 А1, 19.06.2008; . WO 2006019946 А1, 23.02.2006. RU 2159823 С2, 27.11.2000. SU 1650746 А, 23.05.1991 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.09.2012 2 5 5 6 2 4 7 (56) Список документов, цитированных в отчете о поиске: GB 2334966 А, 08.09.1999. WO 2 5 5 6 2 4 7 R U GB 2011/050240 (10.02.2011) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2011/098813 (18.08.2011) Адрес для переписки: 107061, Москва, Преображенская площадь, д. 6, ООО "Вахнина и Партнеры" (54) АЛЮМИНИЙ-МЕДНЫЙ СПЛАВ ДЛЯ ЛИТЬЯ (57) Реферат: Алюминий-медный сплав для литья, 0,0-0,5, Со 0,0-0,5, свободный титан >0,15-1,0, содержащий по существу нерастворимые частицы, нерастворимые ...

БУРОВОЕ ДОЛОТО И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

Предложенная группа изобретений относится к породоразрушающему инструменту, в частности к способу изготовления буровых долот с неподвижными режущими элементами. Техническим результатом является увеличение срока службы инструмента за счет повышения износостойкости, прочности и ударной вязкости корпуса долота. Корпус бурового долота с неподвижными режущими элементами выполнен из спеченного материала металлургического порошка. При этом металлургический порошок включает твердые частицы, содержащие, по меньшей мере, один из следующих материалов: карбид, нитрид, борид, силицид, оксид и их твердые растворы, и связку, составляющую до 35% от веса металлургического порошка и содержащую, по меньшей мере, один металл, выбранный из следующих материалов: кобальт, никель, железо и их сплавов. Способ изготовления корпуса долота с неподвижными режущими элементами включает следующие стадии: уплотнение металлургического порошка для формирования сырой, неспеченной заготовки или уплотненного порошка и формирование ...

СПОСОБ ФОРМИРОВАНИЯ ПО МЕНЬШЕЙ МЕРЕ ЧАСТИ БУРИЛЬНОГО ИНСТРУМЕНТА И СФОРМИРОВАННОЕ ПОСРЕДСТВОМ НЕГО ИЗДЕЛИЕ

1. Способ формирования по меньшей мере части бурильного инструмента, при выполнении которого:помещают по меньшей мере одну вставку в полость литейной формы;помещают зернистый материал, содержащий твердый материал, в полость литейной формы;расплавляют металл и твердый материал для формирования расплавленной смеси, включающей эвтектическую или близкую к эвтектической смесь металла и твердого материала; изаливают расплавленную смесь внутрь полости литейной формы.2. Способ по п.1, в котором дополнительно вводят модификатор в полость литейной формы для управления ростом зерен при затвердевании расплавленной смеси, включающей эвтектическую или близкую к эвтектической смесь металла и твердого материала.3. Способ по п.1 или 2, в котором дополнительно корректируют стехиометрию по меньшей мере одной фазы твердого материала по меньшей мере части бурильного инструмента.4. Способ по п.1 или 2, в котором при расплавлении металла и твердого материала для формирования расплавленной смеси формируют эвтектическую или близкую к эвтектической смесь кобальта и карбида вольфрама.5. Способ по п.1 или 2, в котором при расплавлении металла и твердого материала для формирования расплавленной смеси, расплавляют смесь, содержащую примерно от 40 до 90 мас.% кобальта или сплава кобальта, примерно от 0,5 до 3,8 мас.% углерода, а остальную часть смеси по меньшей мере в основном составляет вольфрам.6. Способ по п.1 или 2, в котором при расплавлении металла и твердого материала для формирования расплавленной смеси расплавляют смесь, содержащую примерно 69 мас.% кобальта или сплава кобальта, примерно 1,9 мас.% углерода и примерно 29,1 мас.% вольфрама.7. Спосо� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B22D 19/06 (13) 2012 155 100 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012155100/02, 19.05.2011 (71) Заявитель(и): БЕЙКЕР ХЬЮЗ ИНКОРПОРЕЙТЕД (US) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): СТИВЕНС Джон Х. (DE), ИЗОН ...

КОМПОЗИТНЫЕ МАТЕРИАЛЫ С УЛУЧШЕННЫМИ МЕХАНИЧЕСКИМИ СВОЙСТВАМИ ПРИ ПОВЫШЕННЫХ ТЕМПЕРАТУРАХ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2017 137 742 A (51) МПК C22C 21/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2017137742, 29.04.2016 (71) Заявитель(и): ЮНИВЕРСИТЕ ДЮ КВЕБЕК А ШИКУТИМИ (CA) Приоритет(ы): (30) Конвенционный приоритет: 01.05.2015 US 62/155,556 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.12.2017 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2016/176766 (10.11.2016) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Композитный материал, содержащий (i) матрицу из алюминиевого сплава, содержащую, в массовых процентах: Si 0,05-0,30, Fe 0,04-0,6, Mn 0,80- 1,50, Mg 0,80-1,50, Cu макс 0,20, и остальное составляют алюминий и постоянные примеси; и (ii) частицы материала-наполнителя, диспергированные в матрице, причем материалнаполнитель представляет собой B4C, и частицы, по меньшей мере частично, покрыты продуктом реакции между добавкой и B, и добавка выбрана из группы, состоящей из Ti, Cr, Mo, V, Nb, Zr, Sr, Sc и любой их комбинации. 2. Композитный материал по п. 1, отличающийся тем, что добавка представляет собой Ti. 3. Композитный материал по п. 2, полученный добавлением к алюминиевому сплаву от 0,20 до 2,00, в массовых процентах, Ti перед добавлением частиц к композитному материалу. 4. Композитный материал по п. 2, полученный добавлением к алюминиевому сплаву Стр.: 1 A 2 0 1 7 1 3 7 7 4 2 (54) КОМПОЗИТНЫЕ МАТЕРИАЛЫ С УЛУЧШЕННЫМИ МЕХАНИЧЕСКИМИ СВОЙСТВАМИ ПРИ ПОВЫШЕННЫХ ТЕМПЕРАТУРАХ 2 0 1 7 1 3 7 7 4 2 CA 2016/050498 (29.04.2016) R U (43) Дата публикации заявки: 03.06.2019 Бюл. № 16 (72) Автор(ы): ЛОРЭН Жан-Алан (CA), ПАРСОН Николя С. (CA), РУ Марио (CA), ЧЭНЬ Сяо-Гуан (CA), ЛЮ Кунь (CA) A 2 0 1 7 1 3 7 7 4 2 A R U 2 0 1 7 1 3 7 7 4 2 Стр.: 2 R U около 1,0, в массовых процентах, Ti перед добавлением частиц к композитному материалу. 5. Композитный материал по любому из пп ...

СТАЛЬНОЙ ЛИСТ ДЛЯ ГОРЯЧЕЙ ШТАМПОВКИ

FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, namely, to steel sheet used for making hot parts of vehicle structural parts. Sheet has a structure containing bainite, fresh martensite and martensite tempering with area of 80 % or more in total. Product of numerical density (pcs/mcm) of carbides and fraction of carbides released in preceding austenite grains is 0.50 or more.EFFECT: use of the sheet allows to obtain hot-stamped parts having high strength and ability to suppress failure at low voltage.4 cl, 7 tbl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 712 670 C1 (51) МПК C22C 38/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 38/00 (2019.08) (21)(22) Заявка: 2019122159, 17.01.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 30.01.2020 R U 17.01.2017 (72) Автор(ы): АБУКАВА, Генки (JP), ХАЯСИ, Кунио (JP), ХИКИДА, Казуо (JP), КАВАСАКИ, Каору (JP) (73) Патентообладатель(и): НИППОН СТИЛ КОРПОРЕЙШН (JP) (56) Список документов, цитированных в отчете о поиске: JP 2014-019941 A, 03.02.2014. RU 2574568 C2, 10.02.2016. JP 2002-356747 A, 13.12.2002. JP 2013-185243 A, 19.09.2013. WO 2015041159 A1, 26.03.2015. (45) Опубликовано: 30.01.2020 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 19.08.2019 (86) Заявка PCT: JP 2017/001358 (17.01.2017) 2 7 1 2 6 7 0 Приоритет(ы): (22) Дата подачи заявки: 17.01.2017 2 7 1 2 6 7 0 R U WO 2018/134872 (26.07.2018) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СТАЛЬНОЙ ЛИСТ ДЛЯ ГОРЯЧЕЙ ШТАМПОВКИ (57) Реферат: Изобретение относится к области карбидов и доли карбидов, выделившихся в металлургии, а именно к стальному листу, предшествующих аустенитных зернах, составляет используемому для изготовления горячей 0,50 или более. Использование листа позволяет штамповкой конструктивных деталей обеспечить получение горячештампованных автомобиля. Лист ...

EUTEKTISCH ERSTARRTE KARBIDHARTLEGIERUNG

An aluminium-copper-titanium alloy comprising insoluble particles

A cast aluminium-copper alloy comprises sufficient free titanium to result in a refined cast grain structure and also comprises substantially insoluble particles which occupy interdendritic / intergranular regions of the alloy. The alloy can comprise (by weight): 3.0-6.0 % Cu, 0.01-1.0 % Ti, 0-1.5 % Mg, 0-1.5 % Ag, 0-0.8 % Mn, 0-1.5 % Fe, 0-1.5 % Si, 0-4.0 % Zn, 0-0.5 % Sb, 0-0.5 % Zr, 0-0.5 % Co, up to 20 % insoluble particles, with the balance being aluminium and impurities. With a size of 1-25 microns, the insoluble particles (e.g. titanium diboride, silicon carbide, aluminium oxide, zirconium diboride, boron carbide or boron nitride) are at least one order of magnitude smaller than the dendrite arm spacing / grain size.

Producing carbide pellets

Carbide pellets including relatively small amounts (less than 3 weight percent) of metallic binder are produced by steps of pressing a carbide powder mixture to form a green compact, comminuting the compact to form faceted granules, shaping the granules to form substantially spherical pellets and then sintering the pellets. The carbide pellets may be used as wear resistant hard facing materials that are applied to various types of tools. The carbide pellets provide improved mechanical properties such as hardness and abrasiveness while maintaining required levels of toughness and strength. The carbide is preferably tungsten carbide. Also claimed is a hard facing rod for applying a wear resistant layer to a workpiece comprising a casing and a plurality of carbide pellets. Further claimed is a wear resistant hard facing composition comprising sintered carbide pellets.

Improvements in and relating to alloys

An alloy consists of: .B.78-84% .C.9-14% .and Si.6-13% and has a rhombohedral boron carbide structure. The alloy may be made by fusing a mixture of sand, boric acid and carbon, or silicon and boron carbide, in an electric arc or resistance furnace, preferably in an inert atmosphere. The alloy may be used as a neutron absorber, an abradant, a refractory or for the preparation of flame sprayed coatings.

Improved alloys of high melting point

... 264,528. Kropf, A. Jan. 16, 1926, [Convention date]. Alloys.-An alloy of high melting-point comprising 20-90 per cent of molybdenum, 5-80 per cent of tungsten, and 0.5-5 per cent of carbon is made by melting together molybdenum and tungsten in the presence of carbon, the amount of carbon taken up from the melt being determined by the proportions of tungsten and molybdenum, increase of the tungsten content being accompanied by progressive decrease of the carbon content. The tungsten may be replaced wholly or partly, and the molybdenum partly, by tantalum; and 0.5-20 per cent of one or more of the following elements may also be present :-cobalt, uranium, chromium, vanadium, titanium, zirconium. silicon. The carbon may be present in the charge as tungsten carbide, and in some cases the charge may include oxides of some of the metals which are reduced in the presence of excess of carbon.

ALLOY WITH A HIGH CONTENT OF PRIMARY CARBIDES AND A METHOD FOR THE MANUFACTURING OF THE ALLOY

... 1339420 Casting processes UDDEHOLMS AB 7 Jan 1971 [7 Jan 1970] 886/70 Heading B3F [Also in Division C7] A TiC-containing carbide component is incorporated into a Fe, Co or Ni based alloy. This may be carried out by an electroslag process in which the carbide is included as a core in the electrode, Fig. 7 (not shown), is formed as a separate electrode attached to the main one, Fig. 9 (not shown), or is included in containers remote from the electrode, Fig. 10 (not shown) the heat from the slag causing melting of said containers. The process may also be carried out by mixing the carbide and alloy in a crucible 13 of aluminium oxide contained within a vacuum furnace and then lowering the crucible into a cooling chamber 5 so that cooling begins at the bottom of the crucible.

PIECES OF FOUNDRY WITH IMPROVED ABRASION RESISTANCE

IRON METAL CASTING MATERIALS, IN PARTICULAR FOR ROLLING ROLES

Hartmetall-Cermet-Verbundwerkstoff und Verfahren zu dessen Herstellung

Es wird ein Hartmetall-Cermet-Verbundwerkstoff (1) bereitgestellt, mit: einer zusammenhängenden Phase (2) aus Wolframkarbid-basiertem Hartmetall, die einen metallischen Binder (2b) aus Co, Ni, Fe oder einer Legierung von diesen und in dem metallischen Binder (2b) eingebettete Wolframkarbid-Teilchen (2a) aufweist; in der zusammenhängenden Phase (2) eingebetteten verteilten Bereichen (3) eines Titankarbid-, Titannitrid- oder Titankarbonitrid-basierten Cermets, die einen zweiten metallischen Binder (3b) aus Co, Ni, Fe oder einer Legierung von diesen und in dem zweiten metallischen Binder (3b) eingebettete Hartstoffteilchen (3a) aufweist, wobei zumindest 97 Vol.-% der eingebetteten Bereiche (3) des Cermets einen längsten Durchmesser <35 m haben und zumindest 20 Vol.-% der eingebetteten Bereiche (3) des Cermets einen kürzesten Durchmesser von zumindest dem Dreifachen des mittleren Durchmessers der Wolframkarbid-Teilchen (2a) in der zusammenhängenden Phase (2) haben.

PROCEDURE FOR THE PRODUCTION OF CARBIDES, BORIDE, SILIZIDE OR NITRIDES ABSTENTION HIGH-FUSIBLE INORGANIC MATERIALS

VERFAHREN ZUR HERSTELLUNG VON KARBIDE, BORIDE, SILIZIDE ODER NITRIDE HOCHSCHMELZBAREN ANORGANISCHEN STOFFEN

MEAL CONE FOR A COMPRESSION CRUSHER

Procedure for the production of tungsten or molybdenum carbide.

METAL-CERAMIC COMPOSITES

STEEL SHEET FOR HOT STAMPING

This steel plate for hot stamping has a steel structure in which the total area fraction of bainite, fresh martensite, and tempered martensite is 80% or more and the product of the number density of carbides (carbides/µm2) and the ratio of carbides precipitated within prior austenite grains among the carbides is 0.50 or more.

COMPOSITES HAVING AN INTERMETALLIC CONTAINING MATRIX

This invention relates to a composite material comprising an in-situ precipitated second phase in an intermetallic matrix, and to the process for making such a composite.

COATED DIAMONDS FOR USE IN IMPREGNATED DIAMOND BITS

An insert for an impreg bit that includes coated diamond particles disposed in a matrix material, wherein the coated diamond particles include a boride, a nitride, and a carbide of a group IVA, V4, VI transition metal or silicon disposed on synthetic, natural, TSP diamonds, or combinations thereof is disclosed. A method of forming a diamond-impregnated insert, including coating a plurality of diamond particles with a coating formed from a boride, a nitride, and a carbide of a group IVA, VA, VI transition metal or silicon or mixtures thereof, and forming a diamond impregnated insert body is also disclosed.

REACTION SINTERED CERMET

REINFORCED ROLL AND METHOD OF MAKING SAME

An article in the form of one of a plate, a sheet, a cylinder, and a portion of a cylinder, which is adapted for use as at least a portion of a wear resistant working surface of a roll is disclosed. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material. The matrix material includes at least one of a metal and a metal alloy, wherein the melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. A plurality of hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite preferentially wears away when the article is in use, thereby providing or preserving gaps between each of the plurality of hard elements at a working surface of the article.

HIERARCHICAL COMPOSITE MATERIAL

The invention relates to a hierarchical composite material that comprises a ferrous alloy reinforced with titanium carbides according to a predetermined geometry, wherein said reinforced portion includes an alternating macro-microstructure of millimetric areas with a concentration of globular micrometric titanium carbide particles separated by millimetric areas substantially free of globular micrometric titanium carbide particles, said areas having a concentration of globular micrometric titanium carbide particles defining a microstructure in which the micrometric gaps between the globular particles are also filled by said ferrous alloy.

Method of manufacturing a part comprising at least one block made from a dense material

A method for making the element comprising at least one dense material block (1, 40, 50) which is constituted by hard particles dispersed in a binder phase with the same or different property, wherein the dense material is locally enriched with binder phase by impregnation of impregnating material. Protective material is deposited on the whole or partial surface of the block and at least one impregnating area is reserved. The protective material can prevent the impregnating material from passing through the wall with deposited protective material thereon to transfer, and can change transfer dynamics of binder phase block, and then at least one impregnating area (4) of the surface (3) of the block (1) enables the block to contact with the impregnating material (2) enriched with binder phase locally, then the block contacting with the impregnating material subjected to a suitable thermal cycle constituted by heating, temperature maintenance and cooling, thus impregnating material and bonding ...

Silicon carbide composites and methods for making same

CARBIDE ALLOYS SUITABLE FOR CUTTING TOOLS AND WEAR PARTS

PART OF CASTING CONSUMING WITH STRENGTHENED STRUCTURE AND METHOD OF ATTAINMENT

PROCESS FOR THE MANUFACTURE OF CASTING IRON OR STEEL, PRODUCT OF CASTING IRON OR STEEL AND PROCESS FOR THE MANUFACTURE OF A LAMINATING CYLINDER

Aluminium-copper alloy for casting

An aluminium-copper alloy comprising substantially insoluble particles which occupy the interdendritic regions of the alloy, provided with free titanium in quantity sufficient to result in a refinement of the grain structure in the cast alloy.

Methods of fabricating a polycrystalline diamond structure

In an embodiment, a method of fabricating a polycrystalline diamond structure includes forming an assembly including a sintered polycrystalline diamond body positioned between an aluminum-containing layer and a substrate. The method further includes subjecting the assembly to a high-pressure/high-temperature process to form the polycrystalline diamond structure including a polycrystalline diamond table bonded to the substrate.

HARD METAL MATERIALS

A hard metal material and a method of manufacturing a component of the hard metal material are disclosed. The hard metal material comprises 5-50 volume % particles of a refractory material dispersed in a host metal. The method comprises forming a slurry of 5-50 volume % particles of the refractory material dispersed in a liquid host metal in an liquid atmosphere and pouring the slurry into a mould and forming a casting of the component. 1. A hard metal material comprising 5-50 volume % particles of a refractory material dispersed in a host metal , wherein the refractory material comprises particles of carbides and/or nitrides and/or borides of any one or more than one of titanium , zirconium , hafnium , vanadium , niobium , tantalum , chromium , and molybdenum.2. The hard metal material defined in wherein the particles of the refractory material also comprise tungsten.3. The hard metal material defined in comprises 5-40 volume % particles of the refractory material dispersed in the host metal.4. The hard metal material defined in comprises greater than 10 volume % particles of the refractory material dispersed in the host metal.5. The hard metal material defined in comprises less than 30 volume % particles of the refractory material dispersed in the host metal.6. The hard metal material defined in wherein the host metal comprises a ferrous alloy claim 1 , a stainless steel claim 1 , an austenitic-manganese steel claim 1 , or an iron-based or a nickel-based or a cobalt-based superalloy.7. A method of manufacturing a component of a hard metal material comprising:(a) forming a slurry of a hard metal material comprising 5-50 volume % particles of a refractory material dispersed in a liquid host metal in an inert atmosphere, and(b) pouring the slurry into a mould and forming a casting of the component in an inert atmosphere.8. The method defined in comprises forming the slurry and thereafter forming the casting of the component in a chamber under vacuum conditions which ...

Earth-boring tools comprising eutectic or near-eutectic compositions

Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.

METHODS OF MANUFACTURING OXIDE/METAL COMPOSITE COMPONENTS AND THE COMPONENTS PRODUCED THEREFROM

Methods for producing components for use in high temperature systems that include reacting a fluid reactant and a porous preform that has a pore volume and contains a solid oxide reactant that defines a solid volume of the porous preform. The method includes infiltrating the fluid reactant into the porous preform to react with the solid oxide reactant to produce a oxide/metal composite component, during which a displacing metal replaces a displaceable species of the solid oxide reactant to produce at least one solid oxide reaction product that has a reaction product volume that at least partially fills the pore volume. The oxide/metal composite component includes at least one oxide phase and at least one metal phase. The component is exposed to temperatures greater than 500° C. and the at least one oxide phase and the at least one metal phase exhibit thermal expansion values within 50% of one another. 1. A method for producing an oxide/metal composite component for use in a high temperature system , the method comprising:reacting a fluid reactant and a porous preform that has a pore volume and contains a solid oxide reactant that defines a solid volume of the porous preform, the fluid reactant comprising at least one displacing metal and the solid oxide reactant of the preform having at least one displaceable species, the at least one displacing metal of the fluid reactant being capable of displacing the at least one displaceable species in the solid oxide reactant to produce at least one solid oxide reaction product;allowing the fluid reactant to infiltrate the porous preform and react with the solid oxide reactant to produce the oxide/metal composite component, during which the at least one displacing metal at least partially replaces the at least one displaceable species of the solid oxide reactant to produce the at least one solid oxide reaction product that has a reaction product volume, the pore volume is at least partially filled by the reaction product ...

Degradable Metal Matrix Composite

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations.

TiCB-AL SEED ALLOY, MANUFACTURING METHOD THEREOF AND HERITABLE ALUMINUM ALLOY

The present disclosure provides a TiCB-Al seed alloy, a manufacturing method thereof and a heritable aluminum alloy. The TiCB-Al seed alloy includes an Al matrix and TiC@TiBC seed crystals dispersed on the Al matrix, wherein the TiC@TiBC seed crystal comprises a core part and a shell part, the core part contains B-doped TiC, and the shell part covers at least a part of the core part and contains a TiBC ternary phase, wherein the B-doped TiCrefers to a TiCphase formed by B atoms occupying C vacancies in a TiCcrystal, and the TiBC ternary phase refers to a ternary phase composed of Ti, B and C, wherein x<1. 1. A TiCB—Al seed alloy , comprising an Al matrix and TiC@TiBC seed crystals dispersed on the Al matrix , wherein the TiC@TiBC seed crystal comprises a core part and a shell part , the core part contains B-doped TiC , and the shell part covers at least a part of the core part and contains a TiBC ternary phase , wherein the B-doped TiCrefers to a TiCphase formed by B atoms occupying C vacancies in a TiCcrystal , and the TiBC ternary phase refers to a ternary phase composed of Ti , B and C , wherein x<1.2. The TiCB—Al seed alloy of claim 1 , wherein a content of C in the core part is higher than a content of C in the shell part claim 1 , and a content of B in the core part is lower than a content of B in the shell part.3. The TiCB—Al seed alloy of claim 1 , wherein the B-doped TiCis represented by TiCB claim 1 , wherein 0.72 Подробнее

Aluminum Based Alloy Containing Cerium and Graphite

The present invention provides an aluminum hybrid metal matrix composite including cerium and graphite. The aluminum-cerium intermetallic is stable at temperatures up to a melting point of aluminum and graphite provides in situ lubrication. This stability is advantageous in applications such as cylinder liners and other applications where strength and stiffness at elevated temperatures are required. 1. An aluminum cast alloy having the following composition:between 6 and 16 weight percent cerium;between 1 and 20 volume percent graphite; andthe remainder being aluminum.2. The aluminum cast alloy of wherein the graphite is coated with a metal promoting wettability with aluminum.3. The aluminum cast alloy of . wherein the graphite is coated with nickel claim 2 , the graphite coated nickel having between 30 and 70 weight percent nickel.4. The aluminum cast alloy of wherein the aluminum alloy further comprises between 1 and 7 weight percent nickel.5. The aluminum cast alloy of wherein the aluminum alloy further comprises between 4 and 25 weight percent silicon.6. The aluminum cast alloy of wherein the aluminum alloy further comprises up to 25 volume percent silicon carbide.7. The aluminum cast alloy of wherein the aluminum alloy further comprises between 0.3 and 10 weight percent magnesium.8. The aluminum cast alloy of wherein the aluminum alloy forms an AlCeintermetallic.9. A method for manufacturing an aluminum cast alloy comprising: first, mixing between 4 and 25 weight percent silicon or up to 25 volume percent silicon carbide into a melted base of aluminum;', 'second, mixing between 1 and 20 volume percent graphite into the melted base of aluminum;', 'third, mixing between 6 and 16 weight percent cerium into the melted base of aluminum;, 'preparing a melted base of aluminum by'}pouring the melted base of aluminum into a mold;cooling the melted base of aluminum to solidify the aluminum composite within the mold;removing the aluminum composite from the mold; ...

Composite system

A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a composite system that has advantageous energy absorbing characteristics. The multiple phases of this composite system include an aggregate phase of hard particles bound with a matrix phase. The matrix phase has at least two phases with varying amounts of aluminum, nickel, and titanium. The matrix phase forms a bond with the hard particles and has varying degrees of hard and ductile phases. The composite system may be used alone or bonded to other materials such as bodies of titanium or ceramic in the manufacture of ballistic armor tiles.

Downhole Tools Comprising Degradable Components

A component of a downhole tool utilized in oil and natural gas exploration and production comprises inorganic hydrolysable compound-containing materials. The inorganic hydrolysable compounds grant the component the degradability/dissolution in aqueous environment. The inorganic hydrolysable compounds include, but not are limited to, hydrolysable carbides, nitrides, and sulfides, such as aluminum carbide (AlC), calcium carbide (CaC), magnesium carbide (MgCor MgC), manganese carbide (MnC), aluminum nitride (AlN), calcium nitride (CaN), magnesium nitride (MgN), aluminum sulfide (AlS), aluminum magnesium carbide (AlMgC), and aluminum zinc carbide (AlZnC). 1. A downhole tool comprising at least one component made of an inorganic hydrolysable compound-containing material , wherein the inorganic hydrolysable compound is selected from the group consisting of hydrolysable carbides , nitrides , sulfides , and any combination thereof;wherein the hydrolysable carbides, nitrides, and sulfides are binary, ternary, or multicomponent; andwherein the inorganic hydrolysable compound has various shapes and sizes.2. The downhole tool of claim 1 , wherein the downhole tool is selected from the group consisting of a wellbore isolation device claim 1 , a perforation tool claim 1 , a cementing tool claim 1 , a completion tool claim 1 , a drilling tool claim 1 , a testing tool claim 1 , a slickline tool claim 1 , a wireline tool claim 1 , an autonomous tool claim 1 , a tubing conveyed perforating tool claim 1 , and any combination thereof.3. The downhole tool of claim 1 , wherein the component is selected from the group consisting of a mandrel of a packer or plug claim 1 , a spacer ring claim 1 , a slip claim 1 , a wedge claim 1 , a retaining ring claim 1 , an extrusion limiter or backup shoe claim 1 , a mule shoe claim 1 , a ball claim 1 , a ball seat claim 1 , a flapper claim 1 , a sleeve claim 1 , a perforation gun housing claim 1 , a cement dart claim 1 , a wiper dart claim 1 , a ...

METHOD AND APPARATUS FOR PREPARING ALUMINUM MATRIX COMPOSITE WITH HIGH STRENGTH, HIGH TOUGHNESS, AND HIGH NEUTRON ABSORPTION

The present invention relates to an aluminum matrix composite (AMC), and particularly to a method and apparatus for preparing an AMC with a high strength, a high toughness, and a high neutron absorption. The present invention combines a high-neutron-absorption and highly stable micro-BC extrinsic reinforcement with an in-situ nano-reinforcement containing elements B, Cd, and Hf and having high neutron capture ability, achieves efficient absorption of neutrons by using the large cross-sectional area of the micro-reinforcement, achieves effective capture of rays penetrating gaps of the micro-reinforcement by means of the highly dispersed in-situ nano-reinforcement, and significantly improves the toughness of the composite material by means of the high-dispersion toughening effect of the nano-reinforcement, obtaining a particle-reinforced aluminum matrix composite (PAMC) having high toughness and high neutron absorption. 1. (canceled)2. (canceled)3. A method for preparing an aluminum matrix composite with a high strength , a high toughness , and a high neutron absorption , wherein through a siphon channel in a center of a melt surface generated by a radial magnetic field , a micro-BC extrinsic ceramic reinforcement and an intermediate alloy or compound with B , Cd , Hf , Ti , and Zr are introduced into a melt , and a high temperature and a high pressure caused by cavitation and acoustic streaming generated through a high-energy ultrasonic field below a liquid surface of the siphon channel help to achieve infiltration and dispersion of the micro-BC extrinsic ceramic reinforcement and promote generation of an in-situ nano-reinforcement from the intermediate alloy or compound with B , Cd , Hf , Ti , and Zr and uniform dispersion of the in-situ nano-reinforcement , such that the aluminum matrix composite reinforced by a cross-scale hybrid of the micro-BC extrinsic ceramic reinforcement and the in-situ nano-reinforcement is prepared , wherein a micro-BC powder of the micro- ...

METHODS OF MAKING FLUX-COATED BINDER AND METAL-MATRIX DRILL BODIES OF THE SAME

A method of making a flux-coated binder includes treating metal binder slugs to have an adherent surface, adding a flux powder to the treated metal binder slugs, and distributing the flux powder on the adherent surface of the metal binder slugs. A method of making a metal-matrix composite-based drill bit body includes loading a matrix powder into a bit body mold, loading a flux-coated binder into the mold on top of the matrix powder to form a load assembly, and heating the load assembly to allow the binder to infiltrate into the matrix powder. 1. A method of making a flux-coated binder , the method comprising:treating metal binder slugs to have an adherent surface;adding a flux powder to the treated metal binder slugs; anddistributing the flux powder on the adherent surface of the metal binder slugs.2. The method according to claim 1 , wherein the treating the metal binder slugs comprises distributing a binding material on the surface of the metal binder slugs.3. The method according to claim 2 , wherein the method further comprises vibration shaking or tumbling the treated metal binder slugs and the binding material.4. The method according to claim 1 , wherein the treating the metal binder slugs to have the adherent surface comprises heating the metal binder slugs to a temperature at which the flux powder adheres to the surface of the metal binder slugs.5. The method according to claim 4 , wherein the metal binder slugs are heated to a temperature below the melting temperature of the binder slugs.6. The method according to claim 1 , wherein the distributing the flux powder comprises vibration shaking or tumbling the metal binder slugs with the flux powder.7. A method of making a metal-matrix composite-based drill bit body claim 1 , the method comprising:loading a matrix powder into a bit body mold;loading a flux-coated binder into the mold on top of the matrix powder to form a load assembly; andheating the load assembly to allow the binder to infiltrate into the ...

Composite Material having Improved Mechanical Properties at Elevated Temperatures

The present disclosure concerns composite material having improved strength at elevated temperatures. The composite material comprises a matrix of an aluminum alloy (comprising, in weight percent, Si 0.05-0.30, Fe 0.04-0.6, Mn 0.80-1.50, Mg 0.80-1.50 and the balance being aluminum and unavoidable impurities) as well as particles of a filler material dispersed within the matrix. The matrix can optionally comprise Cu and/or Mo. In some embodiments, the composite material comprises, as a filler material, BC as well as an additive selected from the group consisting of Ti, Cr, V, Nb, Zr, Sr, Sc and any combination thereof. The present disclosure also provides processes for making such composite materials. 1. A composite material comprising: Si 0.05-0.30,', 'Fe 0.04-0.6,', 'Mn 0.80-1.50,', 'Mg 0.80-1.50,', 'Cu 0.20 max, and', 'the balance being aluminum and unavoidable impurities; and, '(i) a matrix of an aluminum alloy comprising, in weight percent{'sub': '4', '(ii) particles of a filler material dispersed within the matrix, wherein the filler material is BC, the particles are at least partially coated with a reaction product between an additive and B and the additive is selected from the group consisting of Ti, Cr, Mo, V, Nb, Zr, Sr, Sc and any combination thereof.'}2. The composite material of claim 1 , wherein the additive is Ti.3. The composite material of obtained by adding between 0.20 to 2.00 claim 2 , in weight percent claim 2 , of Ti to the aluminum alloy prior to the addition of the particles to the composite material.4. The composite material of obtained by adding about 1.0 claim 2 , in weight percent claim 2 , of Ti to the aluminum alloy prior to the addition of the particles to the composite material.5. The composite material of claim 1 , wherein the matrix further comprises Mo.6. The composite material of claim 5 , wherein the Mo content of the matrix is 0.25 maximum claim 5 , in weight percent.7. The composite material of claim 1 , wherein the Si content ...

Mold Transfer Assemblies and Methods of Use

A mold transfer assembly includes a transfer housing providing an interior defined by one or more sidewalls and a top. The transfer housing is sized to receive and encapsulate a mold as the mold is moved between a furnace and a thermal heat sink. An arm is coupled to the transfer housing to move the transfer housing and the mold encapsulated within the transfer housing between the furnace and a thermal heat sink. The transfer housing exhibits one or more thermal properties to control a thermal profile of the mold. 1. A mold transfer assembly , comprising:a transfer housing providing an interior defined by one or more sidewalls and a top, the transfer housing being sized to receive and encapsulate a mold as the mold is moved between a furnace and a thermal heat sink; andan arm coupled to the transfer housing to move the transfer housing and the mold encapsulated within the transfer housing between the furnace and a thermal heat sink, wherein the transfer housing exhibits one or more thermal properties to control a thermal profile of the mold.2. The mold transfer assembly of claim 1 , further comprising an insulation enclosure sized to receive the mold.3. The mold transfer assembly of claim 2 , wherein the insulation enclosure is further sized to receive the mold while encapsulated by the transfer housing.4. The mold transfer assembly of claim 1 , further comprising one or more internal features defined on one or more inner surfaces of the transfer housing to maintain the mold at least one of radially and axially offset from the transfer housing.5. The mold transfer assembly of claim 1 , wherein the transfer housing comprises:a first cylinder defining a first opening sized to receive the mold; anda second cylinder concentric with the first cylinder and defining a second opening sized to receive the mold, wherein at least one of the first and second cylinders is movable with respect to the other to transition the transfer housing between an open configuration, where ...

Aluminum-silicon-carbide composite and method of manufacturing same

[Problem to be Solved] Provided are an aluminum-silicon-carbide composite having high thermal conductivity, low thermal expansion, and low specific gravity and a method for producing the composite. [Solution] Provided is an aluminum-silicon-carbide composite formed by impregnating a porous silicon carbide molded body with an aluminum alloy. The ratio of silicon carbide in the composite is 60 vol % or more, and the composite contains 60-75 mass % of silicon carbide having a particle diameter of 80 μm or more and 800 μm or less, 20-30 mass % of silicon carbide having a particle diameter of 8 μm or more and less than 80 μm, and 5-10 mass % of silicon carbide having a particle diameter of less than 8

Methods of fabricating oxide/metal composites and components produced thereby

Methods for producing oxide/metal composite components for use in high temperature systems, and components produced thereby. The methods use a fluid reactant and a porous preform that contains a solid oxide reactant. The fluid reactant contains yttrium as a displacing metal and the solid oxide reactant of the preform contains niobium oxide, of which niobium cations are displaceable species. The preform is infiltrated with the fluid reactant to react its yttrium with the niobium oxide of the solid oxide reactant and produce an yttria/niobium composite component, during which yttrium at least partially replaces the niobium cations of the solid oxide reactant to produce yttria and niobium metal, which together define a reaction product. The pore volume of the preform is at least partially filled by the reaction product, whose volume is greater than the volume lost by the solid oxide reactant as a result of reacting yttrium and niobium oxide.

PROCESS FOR GUIDING RAPID DEVELOPMENT OF NOVEL CERMETS

A method for screening a large design space of compositions with possible application as binders in cermet and powder metallurgy applications allows rapid elimination of large portions of the design space from contention so that resource intensive procedures, such as computationally intensive modeling techniques and experimental testing, can be focused on potential binder compositions with a high likelihood of being used successfully. The method relies on parameters such as surface tension, contact angle, viscosity, a special capillary metric that is used to characterize capillary behavior, and melting point, which are relatively easy to calculate or determine, to screen out large portions of the design space. Exemplary binder compositions are obtained using the method.

Degradable Metal Matrix Composite

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations. 1. A degradable composite including:a. plurality of ceramic or intermetallic particles having a hardness greater than 50 HRC;b. galvanically-active elements that include one or more elements selected from the group consisting of iron, nickel, copper, cobalt, titanium silver, gold, gallium, bismuth, palladium, carbon, or indium; andc. degradable metal matrix that includes magnesium, aluminum, magnesium alloy or aluminum alloy, said degradable alloy matrix constituting greater than 50 wt. % magnesium or greater than 50 wt. % aluminum;wherein said degradable composite material includes a plurality of degradation catalyst particles, zones, or regions that are galvanically-active; andwherein said ceramic or intermetallic particles were precoated with said galvanically-active elements prior to being combined with said degradable metal matrix; andwherein a content of said plurality of ceramic or intermetallic particles in said degradable composite is 20 vol. % to 90 vol. % of said degradable composite; andwherein said degradable composite has a hardness of greater than 22 Rockwell C; andwherein said degradable composite has a degradation rate of 0.02-5 mm/hr. at 35-200° C. in 100-100,000 ppm freshwater or brine.26. The degradable composite as defined in claim 1 , wherein the ceramic or intermetallic particles include one or more materials selected from the group consisting of metal carbides claim 1 , borides claim 1 , oxides claim 1 , silicides claim 1 , or nitrides such as BC claim 1 , TiB claim 1 , TiC claim 1 , AlO claim 1 , MgO claim 1 , SiC claim 1 , SiN claim 1 , ZrO claim 1 , SiB claim 1 , SiAlON claim 1 , and WC.3. The degradable ...

Degradable Metal Matrix Composite

The present invention relates to the composition and production of an engineered degradable metal matrix composite that is useful in constructing temporary systems requiring wear resistance, high hardness, and/or high resistance to deformation in water-bearing applications such as, but not limited to, oil and gas completion operations. 133.-. (canceled)34. A method for forming a degradable composite , said method comprises:a. providing ceramic particles, a plurality of said ceramic particles having a hardness of greater than 50 HRC;b. providing one or more galvanically-active elements selected from the group consisting of iron, carbon, nickel, copper, cobalt, gallium, indium, and titanium;c. combining ceramic particles and said one or more galvanically-active elements with a degradable metal material, said degradable metal material selected from magnesium, magnesium alloy including greater than 50 wt. % magnesium, and an aluminum alloy;d. dispersing said plurality of ceramic particles and said one or more galvanically-active elements in said degradable metal material while said degradable metal material is in a molten state to form a mixture; and,{'sup': '2', 'e. cooling said mixture to form said degradable composite, said degradable composite having a degradation rate of at least 5 mg/cm/hr. in freshwater or brine at a temperature of at least 90° C.'}35. The method as defined in claim 34 , wherein said degradable composite has a hardness of greater than 22 Rockwell C.36. The method as defined in claim 34 , wherein said degradable composite includes at least 10 vol. % degradable metal material claim 34 , at least 0.03 vol. % galvanically-active elements claim 34 , and at least 10 vol. % ceramic particles.37. The method as defined in claim 34 , wherein said degradable composite includes one or more metals selected from the group constating of calcium claim 34 , barium claim 34 , lithium claim 34 , sodium claim 34 , potassium claim 34 , silver claim 34 , gold claim 34 ...

Буровое долото, способ изготовления корпуса бурового долота, композит с металлической матрицей и способ изготовления композита с металлической матрицей

Изобретение раскрывает буровое долото, содержащее корпус, который содержит композит с металлической матрицей (MMC), причем MMC содержит: смесь, содержащую одно множество частиц и другое множество частиц, при этом каждая из другого множества частиц мягче, чем каждая из одного множества частиц и металлический связующий материал, металлургически связанный с каждой из одного множества частиц и другого множества частиц, причем MMC имеет модуль Вейбулла больше 20. Также раскрыт способ изготовления корпуса бурового долота, композит с металлической матрицей и способ изготовления композита с металлической матрицей. 4 н. и 111 з.п. ф-лы, 3 табл., 8 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 753 565 C2 (51) МПК E21B 10/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК E21B 10/42 (2021.05) (21)(22) Заявка: 2019136716, 01.05.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 17.08.2021 R U 01.05.2017 (72) Автор(ы): ВАН, Чжунмин (US), БЭЛЛ, Эндрю (US), ХОРСУЭЛЛ, Роберт (US), ВИСВАНАДХАМ, Рамамурту (US) (73) Патентообладатель(и): ЭРЛИКОН МЕТКО (ЮЭс) ИНК. (US) (43) Дата публикации заявки: 03.06.2021 Бюл. № 16 (45) Опубликовано: 17.08.2021 Бюл. № 23 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.12.2019 (56) Список документов, цитированных в отчете о поиске: WO 2017052504 A1, 30.03.2017. Mitra at al. Interfaces in Discontinuously Reinforced Metal-matrix Composites. Defence Science Jouma1, Vol 43, No 4, October 1993, pp 397-418. RU 2457281 C2, 27.07.2012. US 7051783 B1, 30.05.2006. (86) Заявка PCT: 2 7 5 3 5 6 5 Приоритет(ы): (22) Дата подачи заявки: 01.05.2017 2 7 5 3 5 6 5 R U (87) Публикация заявки PCT: C 2 C 2 US 2017/030473 (01.05.2017) WO 2018/203880 (08.11.2018) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) БУРОВОЕ ДОЛОТО, СПОСОБ ИЗГОТОВЛЕНИЯ КОРПУСА БУРОВОГО ДОЛОТА, КОМПОЗИТ С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ И ...

Patent RU2019136716A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 136 716 A (51) МПК E21B 10/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019136716, 01.05.2017 (71) Заявитель(и): ЭРЛИКОН МЕТКО (ЮЭс) ИНК. (US) Приоритет(ы): (22) Дата подачи заявки: 01.05.2017 (43) Дата публикации заявки: 03.06.2021 Бюл. № 16 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.12.2019 (72) Автор(ы): ВАН, Чжунмин (US), БЭЛЛ, Эндрю (US), ХОРСУЭЛЛ, Роберт (US), ВИСВАНАДХАМ, Рамамурту (US) (86) Заявка PCT: US 2017/030473 (01.05.2017) WO 2018/203880 (08.11.2018) R U (54) БУРОВОЕ ДОЛОТО, СПОСОБ ИЗГОТОВЛЕНИЯ КОРПУСА БУРОВОГО ДОЛОТА, КОМПОЗИТ С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ И СПОСОБ ИЗГОТОВЛЕНИЯ КОМПОЗИТА С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ (57) Формула изобретения 1. Буровое долото, содержащее корпус, который содержит композит с металлической матрицей (MMC), причем MMC содержит смесь, содержащую одно множество частиц и другое множество частиц, при этом каждая из другого множества частиц мягче, чем каждая из одного множества частиц; и металлический связующий материал, металлургически связанный с каждой из одного множества частиц и другого множества частиц, причем MMC имеет модуль Вейбулла больше 20. 2. Буровое долото по п. 1, в котором каждая из одного множества частиц содержит первый материал, каждая из другого множества частиц содержит второй материал, и удельная теплопроводность второго материала больше удельной теплопроводности первого материала. 3. Буровое долото по пп. 1 и 2, в котором каждая из другого множества частиц имеет плотность величиной 0,7–1,3 от плотности каждой из одного множества частиц. 4. Буровое долото по любому из предшествующих пунктов, в котором удельная теплопроводность первого материала не больше 120 Wm–1K–1. 5. Буровое долото по любому из предшествующих пунктов, в котором одно Стр.: 1 A 2 0 1 9 1 3 6 7 1 6 A Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры ...

Process for forming metal-second phase composites and product thereof

내용 없음. No content.

Particulate aluminium matrix nano-composites and a process for producing the same

本发明提供一种生产增强型铝基复合材料的工艺。铝基复合材料中的增强化合物选自碳化钛、硼化钛、钒和锆化合物。该工艺使用压力载气来实施气动注入。压力载气在处理期间还进行高效搅拌，致使增强颗粒在铝基中均匀散布。

Hard metal materials

초경합금 물질 및 초경합금 물질의 제조 방법이 개시되어 있다. 초경합금 물질은 호스트 금속에 분산되어 있는 내화성 물질의 입자를 5 내지 50 부피% 포함한다. 이 방법은 불활성 대기중에서 액체 호스트 금속에 분산되어 있는 내화성 물질 입자 5 내지 50 부피%의 슬러리를 형성시키는 단계 및 상기 슬러리를 몰드에 주입하는 단계 및 부품의 주조물을 형성시키는 단계를 포함한다.

Steel sheet for hot stamping

本申请的热冲压用钢板具有由贝氏体、初生马氏体和回火马氏体的面积分率：总计80％以上、碳化物的数密度(个/μm 2 )与碳化物之中向原奥氏体晶内析出的碳化物的比例之积：0.50以上表示的钢组织。

Cutting tool

本发明涉及一种制造切削刀具的方法，该方法包括提供第一烧结硬质合金主体，所述第一烧结硬质合金主体包括WC、金属粘结剂相和η相，并且其中，所述硬质合金中的亚化学计量碳含量在‑0.30重量％至5‑0.16重量％之间。使所述第一烧结硬质合金主体在500℃至830℃之间的温度下经受时间在1小时至24小时之间的热处理。本发明还涉及根据该方法制造的切削刀具。所述切削刀具将具有增加的抵抗梳状裂纹的抗性。

Earth-boring bits

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Earth-boring bits

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Reinforced Roll and Method of Making Same

An article in the form of one of a plate, a sheet, a cylinder, and a portion of a cylinder, which is adapted for use as at least a portion of a wear resistant working surface of a roll is disclosed. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material. The matrix material includes at least one of a metal and a metal alloy, wherein the melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. A plurality of hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite preferentially wears away when the article is in use, thereby providing or preserving gaps between each of the plurality of hard elements at a working surface of the article.

Methods of forming at least a portion of earth-boring tools

Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W 2 C.

Methods of forming at least a portion of earth-boring tools, and articles formed by such methods

Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and a hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.

High-strength matrix body

A new composition for making an improved high-strength matrix body and methods of making the matrix body are disclosed. The new composition includes large-grain carburized tungsten carbide, an infiltration binder, and optionally cast tungsten carbide. The high-strength matrix body is formed from the new composition by an infiltration process. Suitable infiltration binders include all transition metals and all main group metals. To obtain optimal physical properties, large-grain carburized tungsten carbide is mixed with cast tungsten carbide and Ni powder before infiltration. The high-strength matrix body has improved braze strength. Such matrix bodies are suitable for manufacturing bit bodies for PDC drill bits and other earth-boring devices.

Earth-boring bits

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Infiltration of hard particles with molten liquid binders including melting point reducing constituents, and methods of casting bodies of earth-boring tools

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components

Binder compositions for use in forming a bit body of an earth-boring bit includes at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at least one of a transition metal carbide up to 60 weight percent, a transition metal boride up to 60 weight percent, and a transition metal silicide up to 60 weight percent, wherein the weight percentages are based on the total weight of the binder. Earth-boring bit bodies include a cemented tungsten carbide material comprising tungsten carbide and a metallic binder, wherein the tungsten carbide comprises greater than 75 volume percent of the cemented tungsten carbide material.

Cast cones and other components for earth-boring tools and related methods

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W 2 C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Downhole tools and parts and methods of formation

Methods, systems, and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a downhole tool or tool part is fabricated. Mold material is applied to the external periphery of the model. The mold material is permitted to harden to form a mold about the model. The model is eliminated and a composite matrix material is cast within the mold to form a finished downhole tool or tool part.

Reinforced roll and method of making same

An article in the form of one of a plate, a sheet, a cylinder, and a portion of a cylinder, which is adapted for use as at least a portion of a wear resistant working surface of a roll is disclosed. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material. The matrix material includes at least one of a metal and a metal alloy, wherein the melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. A plurality of hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite preferentially wears away when the article is in use, thereby providing or preserving gaps between each of the plurality of hard elements at a working surface of the article.

Grinding roll including wear resistant working surface

A grinding roll includes a core comprising an external surface, and at least one wear resistant article adapted for use as a working surface that is removably attached to the external surface of the core. The at least one wear resistant article comprises a metal matrix composite comprising a plurality of inorganic particles dispersed in a metal matrix material comprising one of a metal and a metal alloy, and a plurality of hard elements interspersed in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements.

Earth-boring tools comprising eutectic or near-eutectic compositions

Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.

Methods of forming at least a portion of earth-boring tools, and articles formed by such methods

Cast cones and other components for earth-boring tools and related methods

The present invention relates to compositions and methods for forming a bit body for an earth-boring bit. The bit body may comprise hard particles, wherein the hard particles comprise at least one of carbide, nitride, boride, and oxide and solid solutions thereof, and a binder binding together the hard particles. The binder may comprise at least one metal selected from cobalt, nickel, and iron, and, optionally, at least one melting point reducing constituent selected from a transition metal carbide in the range of 30 to 60 weight percent, boron up to 10 weight percent, silicon up to 20 weight percent, chromium up to 20 weight percent, and manganese up to 25 weight percent, wherein the weight percentages are based on the total weight of the binder. In addition, the hard particles may comprise at least one of (i) cast carbide (WC+W2C) particles, (ii) transition metal carbide particles selected from the carbides of titanium, chromium, vanadium, zirconium, hafnium, tantalum, molybdenum, niobium, and tungsten, and (iii) sintered cemented carbide particles.

Methods of forming at least a portion of earth-boring tools

Methods of forming at least a portion of an earth-boring tool include providing particulate matter comprising a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and adjusting a stoichiometry of at least one hard material phase of the at least a portion of the earth-boring tool. Methods of forming a roller cone of an earth-boring rotary drill bit comprise forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and converting an eta-phase region within the roller cone to at least one of WC and W 2 C.

Polycrystalline diamond compact

In an embodiment, a polycrystalline diamond compact includes a substrate and a preformed polycrystalline diamond table having an upper surface, an interfacial surface, and at least one side surface extending therebetween. The interfacial surface of the polycrystalline diamond table is bonded to the substrate. The polycrystalline diamond table includes bonded diamond grains defining interstitial regions. The polycrystalline diamond table includes a first region extending inwardly from at least a portion of the upper surface and at least a portion of the at least one side surface. The first region spaced from the interfacial surface. The polycrystalline diamond table includes at least a second region extending inwardly from the interfacial surface to the upper surface. The first region includes at least a first infiltrant disposed interstitially between the bonded diamond grains thereof. The second region includes at least a second infiltrant disposed interstitially between the bonded diamond grains thereof.

Additives for improving the castability of aluminum-boron carbide composite material

본 개시내용은 알루미늄-붕소 카바이드 복합 물질에서 붕소와 포정 반응을 진행할 수 있는 첨가물을 제공한다. 상기 첨가물은 바나듐, 지르코늄, 니오븀, 스트론튬, 크로뮴, 몰리브데늄, 하프늄, 스칸듐, 탄탈럼, 텅스텐 및 이들의 조합으로 이루어진 그룹으로부터 선택될 수 있으며, 주조성을 촉진시키기 위해, 주조 전에, 용융된 복합 물질의 유동성을 유지하기 위해 사용된다. The present disclosure provides additives capable of conducting a positive reaction with boron in an aluminum-boron carbide composite material. The additive may be selected from the group consisting of vanadium, zirconium, niobium, strontium, chromium, molybdenum, hafnium, scandium, tantalum, tungsten, and combinations thereof, and before casting, molten composite It is used to maintain the fluidity of the material.

WAYS OF FORMING AT LEAST PART OF A DRILLING TOOL

1. Способ формирования по меньшей мере части бурильного инструмента, при осуществлении которого:помещают в полость литейной формы зернистый материал, включающий твердый материал;расплавляют металл и твердый материал для формирования расплавленной смеси, включающей эвтектическую или близкую к эвтектической смесь металла и твердого материала;заливают расплавленную смесь в полость литейной формы для формирования в ней по меньшей мере части бурильного инструмента; икорректируют стехиометрию по меньшей мере одной фазы твердого материала по меньшей мере части бурильного инструмента.2. Способ по п.1, в котором при корректировке стехиометрии по меньшей мере одной фазы твердого материала по меньшей мере части бурильного инструмента преобразуют по меньшей мере одну из MC и MC фаз в по меньшей мере одну из MC и MC фаз, где M представляет собой по меньшей мере один элемент металла, а C - углерод.3. Способ по п.2, в котором при преобразовании по меньшей мере одной из MC и MC фаз в по меньшей мере одну из MC и MC фаз преобразуют WCOC в WC, при этом x находится в пределах примерно от 0,5 до 6 и у находится в пределах примерно от 0,5 до 6.4. Способ по любому из п.п.1-3, в котором при расплавлении металла и твердого материала для формировании расплавленной смеси, расплавляют смесь, содержащую примерно от 40 до 90 мас.% кобальта или сплава кобальта, и примерно от 0,5 до 3,8 мас.% углерода, при этом остальную часть смеси по меньшей мере в основном составляет вольфрам.5. Способ по п.4, в котором при расплавлении металла и твердого материала для формирования расплавленной смеси расплавляют смесь, содержащую примерно от 55 до 85 мас.% кобальта или сплава кобальта и приме РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B22D 19/06 (13) 2012 155 101 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012155101/02, 19.05.2011 (71) Заявитель(и): БЕЙКЕР ХЬЮЗ ИНКОРПОРЕЙТЕД (US) Приоритет(ы): (30) Конвенционный приоритет: 20.05.2010 US 61/346, ...

Method of obtaining refractory inorganic materials

DRILL BIT, METHOD FOR MANUFACTURING BODY OF A DRILL BIT, COMPOSITE WITH METAL MATRIX AND METHOD FOR MANUFACTURING COMPOSITE WITH METAL MATRIX

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 136 716 A (51) МПК E21B 10/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019136716, 01.05.2017 (71) Заявитель(и): ЭРЛИКОН МЕТКО (ЮЭс) ИНК. (US) Приоритет(ы): (22) Дата подачи заявки: 01.05.2017 (43) Дата публикации заявки: 03.06.2021 Бюл. № 16 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.12.2019 (72) Автор(ы): ВАН, Чжунмин (US), БЭЛЛ, Эндрю (US), ХОРСУЭЛЛ, Роберт (US), ВИСВАНАДХАМ, Рамамурту (US) (86) Заявка PCT: US 2017/030473 (01.05.2017) WO 2018/203880 (08.11.2018) R U (54) БУРОВОЕ ДОЛОТО, СПОСОБ ИЗГОТОВЛЕНИЯ КОРПУСА БУРОВОГО ДОЛОТА, КОМПОЗИТ С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ И СПОСОБ ИЗГОТОВЛЕНИЯ КОМПОЗИТА С МЕТАЛЛИЧЕСКОЙ МАТРИЦЕЙ (57) Формула изобретения 1. Буровое долото, содержащее корпус, который содержит композит с металлической матрицей (MMC), причем MMC содержит смесь, содержащую одно множество частиц и другое множество частиц, при этом каждая из другого множества частиц мягче, чем каждая из одного множества частиц; и металлический связующий материал, металлургически связанный с каждой из одного множества частиц и другого множества частиц, причем MMC имеет модуль Вейбулла больше 20. 2. Буровое долото по п. 1, в котором каждая из одного множества частиц содержит первый материал, каждая из другого множества частиц содержит второй материал, и удельная теплопроводность второго материала больше удельной теплопроводности первого материала. 3. Буровое долото по пп. 1 и 2, в котором каждая из другого множества частиц имеет плотность величиной 0,7–1,3 от плотности каждой из одного множества частиц. 4. Буровое долото по любому из предшествующих пунктов, в котором удельная теплопроводность первого материала не больше 120 Wm–1K–1. 5. Буровое долото по любому из предшествующих пунктов, в котором одно Стр.: 1 A 2 0 1 9 1 3 6 7 1 6 A Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры ...

The high-strength antifatigue in-situ nano reinforced aluminium alloy of one kind and its pressure casting method

本发明涉及铝基复合材料，特指一种高强抗疲劳原位纳米强化铝合金及其压铸方法。通过原位纳米强化和合金成分调控，并结合优化的非线性高压压铸工艺获得压铸件。借助原位纳米ZrB 2 增强体和纳米Al 3 Er析出相的尺度效应、界面效应、异质形核效应，显著提高合金的强度、抗疲劳性能和阻尼性能；与此同时，提高了Mg、Zn和Fe元素含量，并引入Mn和Ni元素，在提高强化相含量、获得高强度的同时，使Al‑Fe等有害的粗大析出相有效细化和圆顿化，并保障合金良好的压铸性能；从而，采用本发明合金及其压铸方法所生产的构件表现出高强塑性、高抗疲劳性、高阻尼性能以及良好的压铸性能的特点。

Hard metal materials

本发明公开了硬金属材料和制造所述硬金属材料的部件的方法。所述硬金属材料包含分散于主体金属中的5-50vol％的耐火材料的颗粒。所述方法包括在惰性气氛中形成分散于液体主体金属中的5-50vol％的耐火材料颗粒的浆液，以及将所述浆液倾倒入模具中并形成所述部件的铸件。

Bulk metallic glass / graphite composites

Steel sheet for hot stamping

ホットスタンプ用鋼板は、ベイナイト、フレッシュマルテンサイト及び焼戻しマルテンサイトの面積分率：合計で８０％以上、炭化物の数密度（個／μｍ ２ ）と炭化物のうち旧オーステナイト粒内に析出した炭化物の割合との積：０．５０以上、で表される鋼組織を有する。 The steel sheet for hot stamping has an area fraction of bainite, fresh martensite and tempered martensite: 80% or more in total, the number density of carbides (pieces / μm 2 ), and the proportion of carbides precipitated in the prior austenite grains Product: A steel structure represented by 0.50 or more.

Second hardening type martensite alloy and preparation method thereof

본 발명은 이차경화형 마르텐사이트 합금 및 이의 제조방법에 관한 것으로, 본 발명의 일 측면은, 탄소(C) 0.1 중량% 내지 0.5 중량%, 크로뮴(Cr) 1 중량% 내지 5 중량%, 몰리브덴(Mo) 1 중량% 내지 5 중량%, 코발트(Co) 5 중량% 내지 10 중량%, 니켈(Ni) 5 중량% 내지 15 중량%, 바나듐(V) 0.1 중량% 내지 3 중량% 및 잔부 철(Fe)을 포함하는, 이차경화형 마르텐사이트 합금을 제공한다. The present invention relates to a secondary hardening type martensite alloy and a method for manufacturing the same, and one aspect of the present invention is 0.1 wt% to 0.5 wt% of carbon (C), 1 wt% to 5 wt% of chromium (Cr), and molybdenum (Mo) ) 1 wt% to 5 wt%, cobalt (Co) 5 wt% to 10 wt%, nickel (Ni) 5 wt% to 15 wt%, vanadium (V) 0.1 wt% to 3 wt%, and the balance iron (Fe) It provides a secondary hardening type martensite alloy comprising a.

Hierarchical composite material

본 발명은 규정된 기하학적 형상에 따라 티타늄 카바이드에 의해 보강된 철계 합금을 포함하는 계층적 복합 재료에 관한 것이며, 상기 보강된 부분은 실질적으로는 구형 마이크로미터 크기의 티타늄 카바이드 입자가 없는 밀리미터 크기의 영역에 의해 분리된 구형 마이크로미터 크기의 티타늄 카바이드 입자의 농도를 갖는 밀리미터 크기 영역의 번갈아 있는 매크로-미세구조를 포함하고, 상기 영역은 상기 구형 입자 사이에 마이크로미터 크기의 간극이 상기 철계 합금에 의해 또한 채워지는 미세 구조를 규정하는 구형 마이크로미터 크기의 티타늄 카바이드 입자의 농도를 갖는다. The present invention relates to a layered composite material comprising an iron-based alloy reinforced with titanium carbide according to a defined geometry, said reinforced portion having a millimeter-sized area substantially free of spherical micrometer-sized titanium carbide particles Micro-structure of a millimeter size region having a concentration of spherical micrometer-sized titanium carbide particles separated by an iron-based alloy, wherein said micrometer-sized gap between said spherical particles is Has a concentration of spherical micrometer-sized titanium carbide particles that define the microstructure to be filled.

PROCESS FOR THE PREPARATION OF CAST MINERAL REFRACTORY MATERIALS

PROCESS FOR MANUFACTURING A WORKPIECE COMPRISING AT LEAST ONE BLOCK OF DENSE MATERIAL CONSISTING OF HARD PARTICLES DISPERSE IN A BINDER PHASE: APPLICATION TO CUTTING OR DRILLING TOOLS.

PROCESS FOR PRODUCING ALLOY POWDER CONTAINING MOLYBDENE AND TUNGSTENE

Boron-containing ceramic-aluminum metal composite and method of forming the composite

붕소 함유 세라믹-알루미늄 금속 복합체는 붕소 함유 세라믹을 알루미늄 또는 이의 합금으로 이루어진 금속 분말과 혼합하고, 혼합물을 다공성 예비성형물로 성형하고, 예비성형물을 금속 분말보다 낮은 온도에서 용융하는 알루미늄 또는 이의 합금으로 이루어진 침투 금속과 접촉시키고, 예비성형물과 침투 금속을 침투 금속을 용융시키기에는 충분하지만 금속 분말을 용융시키기에는 불충분한 온도로 가열하여, 침투 금속이 다공성 예비성형물에 침투하여 복합체를 형성하도록 함으로써 형성한다. 형성된 복합체는 차량용 부품으로 사용할 수 있다. The boron-containing ceramic-aluminum metal composite consists of aluminum or an alloy thereof, which mixes the boron-containing ceramic with a metal powder of aluminum or an alloy thereof, molds the mixture into a porous preform, and melts the preform at a lower temperature than the metal powder. It is formed by contacting the penetrating metal and heating the preform and the penetrating metal to a temperature sufficient to melt the penetrating metal but insufficient to melt the metal powder so that the penetrating metal penetrates into the porous preform to form a composite. The formed composite can be used as a vehicle component.

METHOD FOR MANUFACTURING WEAR LINING FOR GUIDE BAND SAW, WEAR LINING AND USE OF STEEL FOR MANUFACTURING LINING

1. Способ изготовления износной накладки направляющей полотна ленточной пилы, подверженной износу от движущегося полотна ленточной пилы, отличающийся тем, что он включает следующие стадии:- получение методом порошковой металлургии износостойкой стали следующего состава, масс.%:и дополнительноот 7,5 до 14 (V+Nb/2), где содержание N, с одной стороны, и (V+Nb/2), с другой стороны, сбалансированы относительно друг друга так, что содержание указанных элементов находится внутри области I'', F'', G, Н, I'' в перпендикулярной плоской системе координат, где содержание N отложено по оси абсцисс, а содержание (V+Nb/2) отложено по оси ординат, и координатами указанных точек являются:и максимально 7 любого из Ti, Zr и Al,остальное составляет по существу только железо и неизбежные примеси;- горячее изостатическое прессование полученного порошка в течение 3 часов при температуре от 1000 до 1350°С, предпочтительно от 1100 до 1150°С и давлении 100 МПа до получения максимально плотного или по меньшей мере близкого к максимально плотному тела;- горячая обработка плотного тела путем закалки от температуры аустенизации, составляющей от 950 до 1150°С, и низкотемпературного отпуска при температуре от 200 до 450°С, 2×2 часа, или высокотемпературного отпуска при температуре от 450 до 700°С, 2×2 часа, с получением стальной износной накладки, имеющей микроструктуру, включающую равномерное распределение до 50 об.% частиц твердой фазы типа МХ, MX и/или МС/МС, размер которых в их наибольшем протяжении составляет от 1 до 10 мкм, при этом до 20 об.% указанных частиц твердой фазы представляют собой карбиды, нитриды и/или карбонитриды MX, где М в основном является Cr, a X в основном является N, и от 5 до 40 о РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B23D 55/08 (13) 2012 139 083 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012139083/02, 09.03.2011 (71) Заявитель(и): Уддехолмс АБ (SE) Приоритет(ы): (30) ...

Patent FR2317253B1

Hierarchical composite material.

La presente invención describe un material compuesto jerarquizado que contiene una aleación ferrosa reforzada con carburos de titanio, según una geometría definida en la que, la parte reforzada contiene una macro-microestructura alternada de zonas milimétricas concentradas en partículas globulares micrométricas de carburo de titanio separadas por zonas milimétricas esencialmente exentas de partículas globulares micrométricas de carburo de titanio; dichas zonas concentradas en partículas globulares micrométricas de carburo de titanio forman una microestructura en la que los intersticios micrométricos entre dichas partículas globulares también están ocupados por dicha aleación ferrosa.

Patent GB1305603A

1305603 High carbon alloys AEROJETGENERAL CORP 13 Feb 1970 [26 Feb 1969] 6958/70 Heading C7A A carbidic composite alloy consists, apart from up to 10 atom % of incidental ingredients and impurities, of (a) Hf, Ti or Zr (b) W in an amount of 30-70 atom % and (c) C in such amounts that where the metal from the first group is Ti the composition falls within the area ABCDA in Fig.4 of the drawings and when it is Hf or Zr the composition falls within the area ABCDA in Fig.5. The alloy is derived from a pseudobinary eutectic or near eutectic composition, has a monocarbide phase, containing both W and Group IVa metal, in a W-rich metal phase and exhibits a fine-grained lamellar microstructive Part of the W may be replaced by one of up to 20 atom % Mo, up to 10 atom % Cr, up to 20 atom % Re or up to 5 atom % of one or more of Nb, Ta and V; part of the Hf, Ti or Zr may be replaced by up to 20 atom % in total of the other two; and the incidental elements may comprise one or more of Co, Cu, Fe, Mn, Ni and rare earth metals. The alloys may be made by melting and casting (e.g. centrifugally) with a preferred cooling rate of at least 20‹C/sec. (e.g. at least 30‹C/sec.) or by powder metallurgical techniques. Uses:- Tools

Steel sheet for hot stamping

STRENGTHENED ROLLER AND METHOD FOR ITS MANUFACTURE

1. Изделие в виде одного из пластины, листа, цилиндра и части цилиндра, выполненное с возможностью использования в качестве по меньшей мере части износостойкой рабочей поверхности валка, содержащее:композит с металлической матрицей, содержащий множество неорганических частиц, диспергированных в материале матрицы, содержащем по меньшей мере одно из металла и металлического сплава, при этом температура плавления неорганических частиц выше температуры плавления материала матрицы; имножество твердых элементов, рассеянных в композите с металлической матрицей,причем износостойкость композита с металлической матрицей меньше износостойкости твердых элементов ипри этом композит с металлической матрицей преимущественно изнашивается при использовании изделия, тем самым обеспечивая или сохраняя промежуток между каждым из множества твердых элементов на рабочей поверхности изделия.2. Изделие по п.1, в котором твердые элементы содержат по меньшей мере одно из металла с высокой твердостью, металлического сплава с высокой твердостью, спеченного цементированного карбида и керамического материала.3. Изделие по п.2, в котором твердые элементы содержат сплав с высокой твердостью, представляющий собой инструментальную сталь.4. Изделие по п.1, в котором каждый из твердых элементов содержит спеченный цементированный карбид.5. Изделие по п.4, в котором спеченный цементированный карбид содержит частицы по меньшей мере одного карбида металла из группы IVB, группы VB и группы VIB Периодической таблицы химических элементов, диспергированные в непрерывном связующем, содержащем по меньшей мере одно из кобальта, сплава кобальта, ник� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C22C 1/00 (13) 2012 105 015 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012105015/02, 23.06.2010 (71) Заявитель(и): ТИ ДИ УАЙ ИНДАСТРИЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 14.07.2009 US 12/502,277 (85) Дата начала рассмотрения заявки PCT на ...

Composite member

A composite member suitable for a heat radiation member of a semiconductor element and a method of manufacturing the same are provided. This composite member is a composite of magnesium or a magnesium alloy and SiC, and it has porosity lower than 3%. This composite member can be manufactured by forming an oxide film on a surface of raw material SiC, arranging coated SiC having the oxide film formed in a cast, and infiltrating this coated SiC aggregate with a molten metal (magnesium or the magnesium alloy). The porosity of the composite member can be lowered by improving wettability between SiC and the molten metal by forming the oxide film. According to this manufacturing method, a composite member having excellent thermal characteristics such as a coefficient of thermal expansion not lower than 4 ppm/K and not higher than 10 ppm/K and thermal conductivity not lower than 180 W/m·K can be manufactured.

Aluminum based alloy containing cerium and graphite

The present invention provides an aluminum hybrid metal matrix composite including cerium and graphite. The aluminum-cerium intermetallic is stable at temperatures up to a melting point of aluminum and graphite provides in situ lubrication. This stability is advantageous in applications such as cylinder liners and other applications where strength and stiffness at elevated temperatures are required.

Method of producing ceramic-metal composite materials

FIELD: metallurgy. SUBSTANCE: invention relates to powder metallurgy, particularly, to production of blanks from composite ceramic-metal materials or articles made therefrom. It can be used for creation of composite material with metal matrix containing 40–80 % of refractory ceramic phase, with improved mechanical properties. To form a refractory ceramic frame, the initial powders of titanium, soot, graphite, aluminium and silicon are mixed in a ball mill with accuracy of 0.1 g for 1 hour at a ratio of balls and initial powders of 3:1. Obtained mixture is pressed into a cylindrical or prismatic briquette with relative porosity of 0.4–0.6, combustion is initiated, which ensures self-propagating high-temperature synthesis flow to produce a refractory ceramic frame which is heated to 1200–3000 °C. Obtained frame is brought into contact with the liquid metal to ensure its spontaneous impregnation. EFFECT: higher hardness, wear resistance, impact strength and electrical conductivity, simplified production technology, shorter duration of production cycle, as well as wider industrial range of products. 6 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 733 524 C1 (51) МПК C22C 1/10 (2006.01) B22F 3/26 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22C 1/10 (2020.05); B22F 3/26 (2020.05); C22C 1/1068 (2020.05); C22C 2001/1073 (2020.05) (21)(22) Заявка: 2019139339, 02.12.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 02.12.2019 (45) Опубликовано: 02.10.2020 Бюл. № 28 2 7 3 3 5 2 4 R U (56) Список документов, цитированных в отчете о поиске: US 4990180 A1, 05.02.1991. US 5710382 A1, 20.01.1998. RU 2189367 C2, 20.09.2002. RU 2637198 C1, 30.11.2017. RU 2707055 C1, 21.11.2019. EP 1314498 B1, 08.10.2008. US 6830724 B2, 14.12.2004. (54) Способ получения керамико-металлических композиционных материалов (57) Реферат: Изобретение относится к порошковой пористостью 0 ...

Preparation method of in-situ ternary nanoparticle reinforced aluminum matrix composite

本发明提供一种原位三元纳米颗粒增强铝基复合材料的制备方法。该方法采用原位反应生成技术，以含有生成增强颗粒形成元素的粉剂作为反应物，结合低频旋转磁场/超声场调控技术，采用纳米颗粒中间合金重熔制备铝基复合材料。本发明制备的三元纳米颗粒增强AA6016基复合材料，其颗粒平均粒度为65nm，比较单元和双相纳米颗粒有明显细化现象。室温力学性能测试表明，本发明制备的三元纳米颗粒增强AA6016基复合材料，与基体铝合金相比，抗拉强度提高了27.46％‑33.5％，延伸率提高了23.56％‑30.89％，在航空、航天、尖端武器、汽车工业、精密仪器等领域以及其他民用工业存在很大的应用潜力。

Hard metal materials

A hard metal material and a method of manufacturing a component of the hard metal material are disclosed. The hard metal material comprises 5-50 volume % particles of a refractory material dispersed in a host metal. The method comprises forming a slurry of 5-50 volume % particles of the refractory material dispersed in a liquid host metal in an inert atmosphere and pouring the slurry into a mould and forming a casting of the component.

Hierarchical composite material

Cutting tool

The present invention relates to a method of making a cutting tool comprising providing a first sintered cemented carbide body comprising a WC, a metallic binder phase and eta phase and wherein the substoichiometric carbon content in the cemented carbide is between -0.30 to 5 -0.16 wt%. Subjecting said first sintered cemented carbide body to a heat treatment at a temperature of between 500 to 830˚C for at time between 1 to 24 h. The present invention also relates to a cutting tool made according to this method. The cutting tool will have an increased resistance against comb cracks.

Thermally stable polycrystalline diamond compact

In a process, a thermally stable diamond table body and a substrate are stacked on each other at an interface which includes a layer of a imbibiting material interposed between a bottom surface of the body and an upper surface of the substrate. The stack is subjected to a suitable thermal cycle, constituted by heating, temperature maintenance and cooling, which brings at least some of the imbibiting material into the liquid state for migration into the thermally stable diamond table body and substrate at and about the interface so as to join the thermally stable diamond table body to the substrate The substrate may be produced as a block of dense material constituted by hard particles dispersed in a binder phase, wherein the dense material has been enriched locally with binder phase by imbibition.

Aluminium-copper alloy for casting

An aluminium-copper alloy comprising substantially insoluble particles which occupy the interdendritic regions of the alloy, provided with free titanium in quantity sufficient to result in a refinement of the grain structure in the cast alloy.

Ways to prepare a carbide of molybdenum and tungsten

The present invention relates to a process for the production of an alloy powder (Mo, W) for powder metallurgy, which comprises chemically or mechanically mixing molybdenum and tungsten in the form of compounds and reducing the mixed powder with hydrogen, and a process for the production of a hard solid solution (Mo, W)C from the alloy powder (Mo, W), which comprises carburizing the alloy powder (Mo, W).

Functionally graded metal matrix composite sheet and method for its production

In situ process for producing an aluminium alloy containing titanium carbide particles

An in situ process is provided for producing an aluminium alloy containing titanium carbide particles, the process comprising introducing into an aluminium-titanium melt, graphite in bulk form, preferably manufactured in the form of a rotor, under conditions which facilitate the reaction of titanium in the melt with graphite to produce a dispersion of fine titanium carbide particles within the melt, and finally solidifying the melt so as to retain the uniform distribution of the in situ formed titanium carbide particles in the product. Aluminium alloys containing titanium carbide particles produced according to the process of the present invention are good candidates for various wear-resistant, light-weight composite material applications. Another preferred use for alloys produced by the present invention is as master alloys for grain refining aluminium-based metals, particularly those which are known to exhibit the so-called 'positioning effect'.

Hard metal materials

A hard metal material and a method of manufacturing a component of the hard metal material are disclosed. The hard metal material comprises 5-50 volume % particles of a refractory material dispersed in a host metal. The method comprises forming a slurry of 5-50 volume % particles of the refractory material dispersed in a liquid host metal in an inert atmosphere and pouring the slurry into a mould and forming a casting of the component.

Functionally graded metal matrix composite sheet

The present invention discloses an aluminum alloy product having a first outer layer, a central layer, and a second outer layer. The central layer of the aluminum alloy product has a higher concentration of particulate matter than said first or second outer layers. The particular matter has a size of at least about 30 microns. And, the aluminum alloy product has a thickness ranging from between about 0.004 inches to about 0.25 inches.

Reinforced roll and method of making same

An article in the form of one of a plate, a sheet, a cylinder, and a portion of a cylinder, which is adapted for use as at least a portion of a wear resistant working surface of a roll is disclosed. The article includes a metal matrix composite comprising a plurality of inorganic particles dispersed in a matrix material. The matrix material includes at least one of a metal and a metal alloy, wherein the melting temperature of the inorganic particles is greater than the melting temperature of the matrix material. A plurality of hard elements are embedded in the metal matrix composite. The wear resistance of the metal matrix composite is less than the wear resistance of the hard elements, and the metal matrix composite preferentially wears away when the article is in use, thereby providing or preserving gaps between each of the plurality of hard elements at a working surface of the article.

Hierarchical composite material

The present invention discloses a hierarchical composite material comprising a ferrous alloy reinforced with titanium carbides according to a defined geometry, in which said reinforced portion comprises an alternating macro-microstructure of millimetric areas concentrated with micrometric globular particles of titanium carbide separated by millimetric areas essentially free of micrometric globular particles of titanium carbide, said areas concentrated with micrometric globular particles of titanium carbide forming a microstructure in which the micrometric interstices between said globular particles are also filled by said ferrous alloy.

Process of making tungsten alloys

Boron containing ceramic-aluminum metal composite and method to form the composite

A boron containing ceramic-aluminum metal composite is formed by mixing a boron containing ceramic with a metal powder comprised of aluminum or alloy thereof, shaping the mixture into a porous preform, contacting the preform with an infiltrating metal comprised of aluminum or alloy thereof that melts at a lower temperature than the metal powder and heating to a temperature sufficient to melt the infiltrating metal, but insufficient to melt the metal powder, such that the infiltrating metal infiltrates the porous preform to form the composite. The composite that is formed may be used for vehicular parts.

FERREAS METAL ALLOYS, IN PARTICULAR TO COLAR ROLLERS OF LAMINATORS.

UN METODO PARA FABRICAR METALES FERROSOS DE INGENIERIA QUE COMPRENDE LOS PASOS DE: AÑADIR AL METAL FERROSO LIQUIDO DE INGENIERIA, PARTICULAS DE CARBURO DE UNA ALEACION SOLIDA, Y ASI CONSEGUIR LA SOLIDIFICACION DEL METAL FERROSO. LAS PARTICULAS DE CARBURO DE LA ALEACION ESTAN RECUBIERTAS DE HIERRO O UNA ALEACION DEL MISMO PARA PERMITIR QUE SE PRODUZCA EL HUMEDECIMIENTO ENTRE EL POLVO Y EL METAL FERROSO LIQUIDO, Y LAS PARTICULAS TIENEN UNA DENSIDAD QUE COINCIDE CON LA DEL METAL FERROSO PARA PROPORCIONAR UNA DISTRIBUCION UNIFORME DE LAS PARTICULAS DEL CARBURO EN EL METAL FERROSO. SE PUEDE FABRICAR UN RODILLO QUE TIENE AL MENOS UN CAPARAZON HECHO DE METAL MEDIANTE DICHO METODO POR LA FUNDICION CENTRIFUGA O REFUNDICION DE SOLDADURA POR RETROCESO. A METHOD FOR MANUFACTURING FERROUS ENGINEERING METALS THAT INCLUDES THE STEPS OF: ADDING TO THE FERROUS METAL ENGINEERING LIQUID, CARBIDE PARTICLES OF A SOLID ALLOY, AND SO GET THE SOLIDIFICATION OF THE FERROUS METAL. THE CARBIDE PARTICLES OF THE ALLOY ARE COATED WITH IRON OR AN ALLOY OF THE SAME TO ALLOW THE MOISTURE TO BE PRODUCED BETWEEN THE POWDER AND THE LIQUID FERROUS METAL, AND THE PARTICLES HAVE A DENSITY THAT COINCIDES WITH A DISTRIBUTION OF THE METAL OF THE CARBIDE PARTICLES IN THE FERROUS METAL. YOU CAN MANUFACTURE A ROLLER THAT HAS AT LEAST A HEART MADE OF METAL THROUGH SUCH METHOD BY THE CENTRIFUGE FOUNDATION OR REFUNDING OF BACKWELD WELDING.

Element-dropped Si-Cr-M solid solution powder and preparation method thereof

本发明公开了一种元素掺杂的Si‑Cr‑M固溶体粉末及其制备方法，其制备方法为：将质量百分比为10~85％的Si、5~15％的Cr和5~80％的过渡元素M放入真空度为真空烘箱中烘烤温度低于150℃，烘烤时间不少于3小时，然后随炉降温至50℃以下取出待用；再选用高纯石墨坩埚，将经烘烤的部分单晶硅原料放入高纯石墨坩埚底部，中部放入金属铬，上部放入单晶硅和金属M；再用真空感应炉熔炼，充分熔化后浇铸得到合金浇铸料；再将浇铸料破碎成粒度小于75μm的合金粉末，将该粉末通过高能球磨50~100 h，获得合金粉末。该方法可获得的Si‑Cr‑M固溶体粉末，操作简单，生产周期短，能耗低，易于实现工业化生产。

Reaction sintered cermet

Abstract Cermet body formed by reaction sintering at pressures ranging from subatmospheric to superatmospheric of admixed and shaped reactants, which can be elements, compounds, intermetallic compounds and/or alloys, in stoichiometric proportions to substantially form 30-95 mole percent of first phase or phases being boride, carbide, nitride/ silicide, sulfide or combination thereof of one or more of the elements of Groups 2a, 3a exclusive of B, 4a, 2b, 3b including lanthanide and actinide series elements, 4b, 5b, 6b, 7b And 8, and 5-70 mole percent of second phase or phases being metal, alloy, intermetallic compound or combination thereof of one or more of the elements of Groups 3a exclusive of B, 4a, lb, 2b, 4b, 5b, 6b, 7b and 8, wherein the maximum grain size of the first phase or phases is substantially not greater than 10 µm and which body contains O to 4 weight percent oxygen. Also component of electrowinning or electrorefining cell, which component in use is normally in contact with molten aluminum or in electrical contact with another component which is in contact with molten aluminum. Surface and/or inner portion of component is made of the cermet body with first phase or phases being boride, carbide, nitride, silicide, sulfide or combination thereof of one or more of the elements of Groups 4b, 5b and 6b, and 5-70 mole percent of second phase or phases being aluminum, alloy or intermetallic compound thereof 7 or combination thereof. Also production cell, and method of producing aluminum in such cell, with the reaction sintered cermet component.