发明公开
EP0671479A1 Chromized heat-resistant alloy members and a process for the production thereof
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ChromiertewärmebeständigeLegierungselemente und Verfahren zur ihrer Herstellung。
- 专利标题： Chromized heat-resistant alloy members and a process for the production thereof
- 专利标题（中）： ChromiertewärmebeständigeLegierungselemente und Verfahren zur ihrer Herstellung。
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申请号： EP95103354.7申请日： 1995-03-08
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公开(公告)号： EP0671479A1公开(公告)日： 1995-09-13
- 发明人: Nakahama, Syuhei , Nagahara, Hisamichi , Kawasaki, Masamichi , Harada, Yoshio
- 申请人： EBARA CORPORATION , TOCALO CO. LTD.
- 申请人地址： 11-1, Haneda Asahi-cho Ohta-ku, Tokyo JP
- 专利权人： EBARA CORPORATION,TOCALO CO. LTD.
- 当前专利权人： EBARA CORPORATION,TOCALO CO. LTD.
- 当前专利权人地址： 11-1, Haneda Asahi-cho Ohta-ku, Tokyo JP
- 代理机构： Wagner, Karl H., Dipl.-Ing.
- 优先权： JP64398/94 19940309; JP32813/95 19950131
- 主分类号： C23C10/38
- IPC分类号： C23C10/38
摘要：
To provide heat-resistant alloy members that maintain the resistance to corrosion at high temperature of the chromized layer formed on Ni- or Co-base heat-resistant alloys and which yet are improved in various mechanical properties. The improved Ni- or Co-base heat-resistant alloy member having a chromized layer that is characterized by having a chromium concentration of 25 - 80% and a thickness of 10 - 100 µm. This member is produced by controlling both the vapor pressure of a chromium halide being used in chromization and the temperature therefor in such a way that the chromized layer being formed is adjusted to have a chromium concentration and a thickness within the ranges specified above.
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