发明名称 |
Elevated-temperature, plasma-transferred arc welding of nickel-base superalloy articles |
摘要 |
A nickel-base superalloy article which is susceptible to strain-age cracking and has a directionally oriented, single crystal, or equiaxed grain structure is repaired with minimal welding heat input into the article. The article is first heated to a welding temperature of from about 1650 DEG F. to about 2000 DEG F. in an inert atmosphere. A damaged area of the article is weld repaired using a plasma-transferred arc welder which vaporizes a filler metal in a plasma arc and deposited the vaporized metal onto the article to form a weld overlay. Minimal additional heat is added to the article during welding, as the weldment metal is vaporized remotely from the article.
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申请公布号 |
US6084196(A) |
申请公布日期 |
2000.07.04 |
申请号 |
US19980030022 |
申请日期 |
1998.02.25 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
FLOWERS, GILBERT E.;KELLY, JR., EARL L.;GROSSKLAUS, JR., WARREN D.;BARBER, JAMES D.;GRUBBS, GRAY W.;WILLIAMS, LEVI |
分类号 |
B23K10/02;(IPC1-7):B23K9/00 |
主分类号 |
B23K10/02 |
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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