发明名称 |
Nickel base superalloy preweld heat treatment |
摘要 |
A preweld heat treatment for precipitation hardenable IN939 nickel base superalloy having a gamma matrix and gamma prime strengthening phase dispersed in the matrix comprises heating the nickel base superalloy at about 2120 degrees F. for a time to solution gamma prime phase followed by slow cooling to below about 1450 degrees F. at a rate of about 1 degree F./minute or less, and cooling to room temperature. The preweld heat treatment eliminates strain age cracking at base metal weld heat-affected zone upon subsequent heat treatment to develop alloy mechanical properties.
|
申请公布号 |
US6120624(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19980108028 |
申请日期 |
1998.06.30 |
申请人 |
HOWMET RESEARCH CORPORATION |
发明人 |
VOGT, RUSSELL G.;LAUNSBACH, MICHAEL G.;CORRIGAN, JOHN |
分类号 |
B23K9/235;B23K11/34;C22C19/05;C22F1/00;C22F1/10;(IPC1-7):C21D9/00 |
主分类号 |
B23K9/235 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|