发明授权
- 专利标题: Article with intermediate layer and protective layer, and its fabrication
- 专利标题(中): 文章中间层和保护层,其制造
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申请号: US10028109申请日: 2001-12-20
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公开(公告)号: US06838190B2公开(公告)日: 2005-01-04
- 发明人: Ching-Pang Lee , Melvin Robert Jackson , Stephen Joseph Ferrigno , Gary Edward Trewiler , Mark Daniel Gorman
- 申请人: Ching-Pang Lee , Melvin Robert Jackson , Stephen Joseph Ferrigno , Gary Edward Trewiler , Mark Daniel Gorman
- 申请人地址: US NY Schenectady
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Schenectady
- 代理机构: McNees Wallace & Nurick LLP
- 主分类号: B32B15/01
- IPC分类号: B32B15/01 ; C22C5/04 ; C22C27/06 ; B32B15/04 ; B32B15/20 ; B64C11/16 ; F01D5/14
摘要:
A protected article includes a nickel-base superalloy substrate, an interlayer overlying the substrate, and a protective layer overlying the interlayer. The protective layer has a composition comprising at least one of rhodium, platinum, palladium, and ruthenium. In one composition, palladium is present in an amount of from about 1 to about 41 atomic percent; platinum is present in an amount of about (40+atomic percent palladium) atomic percent for palladium ranging from about 1 atomic percent to about 14 atomic percent and up to about 54 atomic percent for palladium ranging from about 15 atomic percent up to about 41 atomic percent; rhodium is present in an amount of at least about 24 atomic percent; zirconium, hafnium, titanium, and mixtures thereof are present in an amount of from zero up to about 5 atomic percent; and ruthenium is present in an amount of from zero up to about 5 atomic percent, balance impurities. The interlayer has a coefficient of thermal expansion intermediate between that of the substrate and that of the protective layer. The protected article is fabricated by furnishing the substrate, applying the interlayer over the substrate, and applying the protective layer over the interlayer. The application of the protective layer may be, for example, by welding or attachment of a solid piece.
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