Article having a coating

摘要

An article, particularly a brass article, is coated with a multi-layer coating comprising a semi-bright nickel layer (14) deposited on the surface of the article, a bright nickel layer (16) deposited on the semi-bright nickel layer (14), a nickel-tungsten-boron layer (21) deposited on the bright nickel layer (16), a chrome layer (21) deposited on the nickel-tungsten-boron layer (20), a layer (22) comprised of a non-precious refractory metal deposited on the chrome layer (21), a sandwich layer (26) comprised of alternating layers of non-precious refractory metal compound, preferably zirconium nitride, and non-precious refractory metal, preferably zirconium, deposited on the non-precious refractory metal layer (22), a non-precious refractory metal compound (32) such as zirconium nitride deposited on the sandwich layer (26), and a layer (34) comprised of a non-precious refractory metal oxide or the reaction products of a non-precious refractory metal, oxygen and nitrogen deposited on the non-precious refractory metal compound layer (32). The coating provides the color of brass to the article and also provides abrasion and corrosion protection.