Case hardening method for high performance long life martensitic stainless steel bearings
Номер патента: EP3074542A1
Опубликовано: 05-10-2016
Автор(ы): David A. Haluck, Herbert A. Chin, Michael A. MOULIN, William P. Ogden
Принадлежит: United Technologies Corp
Опубликовано: 05-10-2016
Автор(ы): David A. Haluck, Herbert A. Chin, Michael A. MOULIN, William P. Ogden
Принадлежит: United Technologies Corp
Реферат: A method for cost effectively case hardening a component formed from a martensitic stainless steel material with a desired metallurgical condition for high temperature, high rolling contact fatigue, corrosion and spall initiation and propagation resistance bearing performance. The method describes a method to significantly reduce the carburization or carbo-nitriding process times for appreciable reduction in manufacturing cost. The Method includes the steps of: forming the component from a martensitic stainless steel material having an ASTM grain size of 9 or finer; and subjecting the component to one of a carburization and a carbo-nitriding treatment with significantly lower case hardening times for manufacturing cost-effectiveness.
Case hardening method for high performance long life martensitic stainless steel bearings
Номер патента: US20190040486A1. Автор: William P. Ogden,Herbert A. Chin,David A. Haluck,Michael A. MOULIN. Владелец: United Technologies Corp. Дата публикации: 2019-02-07.