发明名称 |
Method for removing aluminide coating from metal substrate and turbine engine part so treated |
摘要 |
<p>A method for selectively removing an aluminide coating from at least one surface of a metal-based substrate by: (a) contacting the surface of the substrate with at least one stripping composition comprising nitric acid at a temperature less than about 20° C. to degrade the coating without damaging the substrate; and (b) removing the degraded coating without damaging the substrate. Also disclosed is a method for replacing a worn or damaged aluminide coating on at least one surface of a metal-based substrate by selectively removing the coating using the above steps, and then applying a new aluminide coating to the surface of the substrate. Turbine engine parts, such as high-pressure turbine blades, treated using the above methods are also disclosed.</p> |
申请公布号 |
EP1437425(B1) |
申请公布日期 |
2007.05.16 |
申请号 |
EP20040250087 |
申请日期 |
2004.01.09 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
WUSTMAN, ROGER DALE;ROSENZWEIG, MARK ALAN;BROOKS, WILLIAM CLARKE;PILSNER, BRIAN H.;RISBECK, JAMES DOUGLAS;WORTHING, RICHARD ROY JR. |
分类号 |
C23F1/44;F01D5/00 |
主分类号 |
C23F1/44 |
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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