Process for preparing a part for color anodization

摘要

An article of manufacture having a metallic surface consisting of brass or stainless steel is overcoated with a first layer of nickel and a second layer of elemental niobium. The article may thereafter be color anodized in a solution of ammonium sulfate without the need for a hydrofluoric acid etch to produce a highly attractive and colorful ornamental surface finish. After anodization, the articles may be coated with clear epoxy or a sputter deposited transparent ceramic coating for added wear resistance.