发明名称 |
HIGH CHROMIUM FERRITIC STEEL WITH 0.5 ATOMIC % HAFNIUM, PART OF WHICH IS ION IMPLANTED |
摘要 |
<p>The application relates to the problem of improving the corrosion resistance and creep properties of standard Cr-steels like E911 (table 1) at high temperatures. To solve this problem, a method of adding up to 0.5 atomic % Hf both during casting or molding and by ion implantation is provided. The addition of Hf improves the corrosion resistance and creep properties inter alia, as it forms a finely distributed stable second phase and as the harmful M23C6 disappears, because all carbon is taken by Hf to form HfC.</p> |
申请公布号 |
EP1737996(A1) |
申请公布日期 |
2007.01.03 |
申请号 |
EP20050735995 |
申请日期 |
2005.04.01 |
申请人 |
LOUGHBOROUGH UNIVERSITY ENTERPRISES LIMITED |
发明人 |
FAULKNER, ROY |
分类号 |
C22C33/06;C22C38/18;C22C38/22;C22C38/24;C22C38/26;C23C14/48 |
主分类号 |
C22C33/06 |
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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