发明授权
US4908072A In-process formation of hard surface layer on Ti/Ti alloy having high
resistance
失效
在具有高电阻的Ti / Ti合金上进行硬表面层的在线形成
- 专利标题: In-process formation of hard surface layer on Ti/Ti alloy having high resistance
- 专利标题(中): 在具有高电阻的Ti / Ti合金上进行硬表面层的在线形成
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申请号: US242336申请日: 1988-09-08
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公开(公告)号: US4908072A公开(公告)日: 1990-03-13
- 发明人: Kazuhiro Taki , Yasuhiro Mitsuyoshi , Takeshi Shiraki
- 申请人: Kazuhiro Taki , Yasuhiro Mitsuyoshi , Takeshi Shiraki
- 申请人地址: JPX Tokyo
- 专利权人: Nippon Mining Co., Ltd.
- 当前专利权人: Nippon Mining Co., Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX62-226867 19870910; JPX63-106149 19880428
- 主分类号: B21B45/00
- IPC分类号: B21B45/00 ; C22F1/00 ; C22F1/18 ; C23C8/02 ; C23C8/20 ; C23C8/24 ; C23C8/30 ; C23C8/44 ; C23C8/48 ; C23C8/54 ; H01M4/66
摘要:
A process for producing a titanium material with excellent corrosion resistance, which comprises first applying a degree of cold working of 10% or more of the total working reduction while causing an oil to exist on the surface of the titanium material during cold working thereof and then subjecting the titanium material to in-situ heat treatment at a temperature of 300.degree. C. or higher, thereby forming a layer with excellent corrosion resistance containing at least one of Ti.sub.2 N, TiC and Ti(CN) on the titanium material surface.
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