发明名称 |
Enhanced microstructural stability of nickel alloys |
摘要 |
The microstructural stability of nickel base alloys at high temperatures is enhanced by the addition of cobalt within the range of 10.0 to 14.9 weight percent for reducing the precipitation of the sigma phase in alloys with more than 12 weight percent chromium. The nickel-base alloys having cobalt addition in the range as set forth are characterized by an electron vacancy number within the range of 2.4 to 2.7 inclusive.
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申请公布号 |
US4492672(A) |
申请公布日期 |
1985.01.08 |
申请号 |
US19820369880 |
申请日期 |
1982.04.19 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
DUHL, DAVID N.;NGUYEN-DINH, XUAN |
分类号 |
C22C19/05;(IPC1-7):C22C19/05 |
主分类号 |
C22C19/05 |
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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