发明授权
- 专利标题： Austenitic stainless steel with high corrosion resistance and high strength when heat treated
- 专利标题（中）： 奥氏体不锈钢具有高耐蚀性和高强度的热处理
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申请号： US786960申请日： 1985-10-03
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公开(公告)号： US4689198A公开(公告)日： 1987-08-25
- 发明人: Kazuo Fujiwara , Yasushi Torii , Koujiro Kitahata , Tsuyoshi Inoue , Tadamasa Yokoyama, deceased
- 申请人： Kazuo Fujiwara , Yasushi Torii , Koujiro Kitahata , Tsuyoshi Inoue , Tadamasa Yokoyama, deceased
- 申请人地址： JPX Kobe
- 专利权人： Kabushiki Kaisha Kobe Seiko Sho
- 当前专利权人： Kabushiki Kaisha Kobe Seiko Sho
- 当前专利权人地址： JPX Kobe
- 优先权： JPX59-23702 19840209; JPX59-72068 19840410
- 主分类号： C21D6/00
- IPC分类号： C21D6/00 ; C22C38/46 ; C22C38/50 ; C22C38/58 ; C22C38/44
摘要：
Disclosed herein is a high strength austenitic stainless steel with excellent corrosion resistance even in oxidative enviroments, and a method for producing such stainless steel, in which the kinds and proportions of the component elements are strictly restricted, especially limiting the contents of C and N to achieve solution strengthening while preventing degradations in corrosion resistance and defects of steel ingots which would be caused if they are added excessively. Besides, V is added under coexistence with Cr and Ni to increase the strength by precipitation of carbides and nitrides of V while preventing production of Cr carbides.
公开/授权文献
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