Electrodeposited zinc alloy coatings

Abstract This review examines the range of zinc alloy electrodeposited coatings that are available as finishes for continuous steel strip and also possible replacements for electroplated cadmium. Each system is described in terms of available electrolytes, physical properties and corrosion resistance. It is apparent that zinc-nickel, zinc-iron and zinc-cobalt are the most widely utilized, although zinc-manganese, which appears to have excellent corrosion resistance, is in all probability unavailable commercially. Zinc-tin is also discussed, being recognized as another possible replacement for cadmium.