发明名称 |
Heat treatment for nickel-base superalloys |
摘要 |
The present invention is directed to a heat treatment for nickel-base superalloys used to make single crystal parts and components for gas turbine engines. The heat treatment is conducted in a vacuum or inert atmosphere and includes the steps of solutionizing in a temperature range sufficient to achieve solution of at least 95% of the gamma ' phase, preferably 2385 DEG -2395 DEG F., for 2 hours; cooling to 2000 DEG F. at 100 DEG F./min minimum, furnace cooling to 1200 DEG F. in 60 min. or less and thereafter cooling to room temperature; heating to 2050 DEG +/-25 DEG F. for 4 hours; furnace cooling to below 1200 DEG F. in 6 min. or less and thereafter to room temperature; and heating to 1650 DEG +/-25 DEG F. for 4 hours and thereafter furnace cooling to room temperature.
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申请公布号 |
US5100484(A) |
申请公布日期 |
1992.03.31 |
申请号 |
US19900472420 |
申请日期 |
1990.01.26 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
WUKUSICK, CARL S.;BUCHAKJIAN, JR., LEO;DAROLIA, RAMGOPAL |
分类号 |
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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