发明名称 |
Thermal treatment of wrought, nickel base superalloys in conjunction with high energy hole drilling |
摘要 |
A heat treatment is described for producing a desired microstructure in Hastelloy Alloy X components which have small diameter, closely spaced, laser pierced holes therein. The heat treatment produces a small grain size and discontinuous carbide morphology in the component prior to the hole piercing operation, which reduces the propensity for cracking which has been found to be associated with the hole piercing operation. After the piercing operation, the component is heat treated again to increase the grain size and produce a microstructure which provides the optimum balance of creep strength and fatigue strength.
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申请公布号 |
US4708750(A) |
申请公布日期 |
1987.11.24 |
申请号 |
US19850812107 |
申请日期 |
1985.12.23 |
申请人 |
UNITED TECHNOLOGIES CORPORATION |
发明人 |
FIELD, THOMAS T.;MURRIN, THOMAS A.;AULT, EARLE A. |
分类号 |
C22F1/10;(IPC1-7):C22F1/10 |
主分类号 |
C22F1/10 |
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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