Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonelectrolytic coating after depositing...
Patent
1996-07-23
1998-08-04
Gorgos, Kathryn L.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonelectrolytic coating after depositing...
205228, 427405, 148518, C23C 2802
Patent
active
057888230
ABSTRACT:
A method of improving oxidation resistance of a platinum modified aluminide diffusion coating on a substrate involves electroplating the substrate with a platinum layer from an aqueous hydroxide based electroplating solution and aluminizing the substrate to grow the platinum modified aluminide diffusion coating on said layer. The electroplating solution preferably includes an alkali element and/or alkaline earth element that is incorporated in the platinum layer and in the aluminide diffusion coating formed thereon to significantly improve oxidation resistance of the coating.
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Beck Robert W.
Cockerill Jack E.
DuShane Nick S.
Legard Thomas A.
Warnes Bruce M.
Gorgos Kathryn L.
Howmet Research Corporation
Mayekar Kishor
Timmer Edward J.
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