发明公开
- 专利标题： CARBO-NITRIDING PROCESS FOR MARTENSITIC STAINLESS STEEL AND STAINLESS STEEL ARTICLE HAVING IMPROVED CORROSION RESISTANCE
- 专利标题（中）： 方法碳氮共渗具有改进的耐腐蚀性的马氏体不锈钢条不锈钢
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申请号： EP12792569申请日： 2012-05-31
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公开(公告)号： EP2739761A4公开(公告)日： 2015-08-19
- 发明人: TRIVEDI HITESH K , OTTO FREDERICK J , PIAZZA TIMOTHY W , MCCOY BRYAN A , BHATTACHARYA RABI S
- 申请人： SKF AB , UES INC , MIDWEST THERMAL VAC INC
- 专利权人： SKF AB,UES INC,MIDWEST THERMAL VAC INC
- 当前专利权人： SKF AB,UES INC,MIDWEST THERMAL VAC INC
- 优先权： US201161492675 2011-06-02
- 主分类号： C23C8/00
- IPC分类号： C23C8/00
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.
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