Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Patent
1997-03-10
1998-07-21
Zimmerman, John J.
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
428651, 428660, 427405, 4274191, 416241R, B32B 1500, B32B 1520
Patent
active
057833150
ABSTRACT:
An article having a protective coating thereon includes a substrate having a substrate composition and a substrate surface, and a protective coating contacting and overlying at least a portion of the substrate surface. The substrate is preferably a Ti--Nb aluminide, an .alpha.2-titanium aluiminide, or a .gamma.-titanium aluminide. The protective coating includes a metallic layer contacting the substrate surface and having a composition, in atomic percent, of from about 5 to about 40 percent chromium, from about 44 to about 59 percent aluminum, balance titanium plus incidental impurities. The protective coating may further include a ceramic layer contacting and overlying the metallic layer, with the metallic layer lying between the ceramic layer and the substrate.
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Cullinan Joseph F.
McCarron Russell L.
Meier Gerald H.
Perkins Roger A.
Schaeffer Jon C.
General Electric Company
Hess Andrew C.
Narciso David L.
Zimmerman John J.
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