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CARBO-NITRIDING PROCESS FOR MARTENSITIC STAINLESS STEEL AND STAINLESS STEEL ARTICLE HAVING IMPROVED CORROSION RESISTANCE

机译：马氏体不锈钢和不锈钢制品的碳氮共渗工艺具有增强的耐腐蚀性

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摘要

A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

机译：一种生产表面硬化马氏体不锈钢制品的方法，该方法包括：提供一种至少部分包含马氏体不锈钢的制品，在1625°F.-1680°F（885°F）的温度范围内对该制品进行渗碳。 C.-916°C），然后在1575°F.-1625°F（857°C-885°C）的温度范围内碳氮化该制品。还公开了一种包括这种表面硬化马氏体不锈钢的制品，例如轴承环。

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公开/公告号US2018320262A1

专利类型
公开/公告日2018-11-08

原文格式PDF
申请/专利权人 UES INC.;MIDWEST THERMAL-VAC INC;AKTIEBOLAGET SKF;
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申请/专利号US201816039564
发明设计人 HITESH K. TRIVEDI;FREDERICK J. OTTO;TIMOTHY W. PIAZZA;BRYAN A. MCCOY;RABI S. BHATTACHARYA;
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申请日2018-07-19
分类号C23C8/32;F16C33/64;C23C8/58;C22C38/48;C22C38/46;C22C38/44;C22C38/04;C22C38/02;C22C38/52;
国家 US
入库时间 2022-08-21 12:57:10

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