发明名称 |
Chromized heat-resistant alloy members and a process for the production thereof |
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 mu m. 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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申请公布号 |
US5882439(A) |
申请公布日期 |
1999.03.16 |
申请号 |
US19960712180 |
申请日期 |
1996.09.11 |
申请人 |
EBARA CORPORATION;TOCALO CO., LTD. |
发明人 |
NAKAHAMA, SYUHEI;NAGAHARA, HISAMICHI;KAWASAKI, MASAMICHI;HARADA, YOSHIO |
分类号 |
C23C10/10;C22C19/05;C22C19/07;C23C10/38;(IPC1-7):C23C8/00 |
主分类号 |
C23C10/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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