Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Treating substrate prior to coating
Patent
1990-12-27
1992-01-21
Niebling, John F.
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Treating substrate prior to coating
205273, C25D 538
Patent
active
RE0338001
ABSTRACT:
This invention relates to an improved method for electroplating a layer of nickel into titanium base alloy substrates. It is particularly useful in electroplating a layer of nickel onto titanium alloys which contain refractory metal elements, such as the alloy Ti-8Al-1V-1Mo. The method includes the steps of etching the surface of the substrate with a solution containing hydrofluoric acid and hydrochloric acid, followed by electroplating the etched surface in a nickel sulfamate solution.
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Larissa Domnikov, Metal Finishing, pp. 59-62, Mar. 1962.
Fornwalt Donald E.
Lomasney Gary M.
Routsis Kostas
Marquis Steven P.
Niebling John F.
Rashid James M.
United Technologies Corporation
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