Process for forming a gold-chromium alloy from an electrodeposit

Details Process for forming a gold-chromium alloy from an electrodeposit Process for forming a gold-chromium alloy from an electrodeposit

1976-05-24

1977-09-06

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

204 41, 204 46G, 428672, C25D 510, C25D 524, C25D 550

Patent

active

040466442

ABSTRACT:
The invention relates to a process for heat diffusion of an electrodeposited gold layer on a chromium surface by simultaneously depassivating and cathodically gold plating a chromium surface by immersion and electroplating into an acid gold bath solution and diffusing the gold-chromium coating by heat to form a gold-chromium alloy which is abrasion resistant and which has a hardness substantially greater than that of a gold plated coating on a chromium surface which has not been heat diffused.

REFERENCES:
patent: 2039328 (1936-05-01), Lukens
patent: 2133995 (1938-10-01), Lukens
patent: 2978390 (1961-04-01), Atwater et al.
patent: 3502548 (1970-03-01), Lyons
patent: 3551302 (1970-12-01), Woods et al.
patent: 3598706 (1971-08-01), Freedman et al.

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