Article having a decorative and protective multilayer coating si

Details Article having a decorative and protective multilayer coating si Article having a decorative and protective multilayer coating si

1994-06-02

1995-05-09

Lewis, Michael

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428660, 428675, 428680, 428661, 205176, 205192, 205255, B32B 1504, C25D 356

Patent

active

054138744

ABSTRACT:
An article is coated with a multilayer coating comprising a nickel layer deposited on the surface of the article, a nickel-tungsten-boron alloy layer deposited on the nickel layer, a refractory metal, preferably zirconium, strike layer deposited on the nickel-tungsten-boron alloy layer, and a refractory metal compound, preferably zirconium nitride, deposited on the refractory metal strike layer. The coating provides the color of polished brass to the article and also provides abrasion and corrosion protection.

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Lowenheim, "Electroplating" TS 670.L67 1978, pp. 210-225.

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