Study of corrosion performance of electrodeposited nanocrystalline Zn-Ni alloy coatings

► Corrosion resistance of NC Zn-Ni alloy was superior to microcrystalline Zn-Ni alloy. ► The corrosion products formed on NC Zn-Ni alloy was stable and protective. ► The Ni content has a major effect on the protection performance of the coatings.