To extend the lifetime and improve the reliability of the commercial exploitation of Mg alloys, their surface is protected from corrosion by different types of coatings and efficient corrosion inhibitors . Chromate-based surface treatment and inhibitors for a long time were effective technologies to prevent the corrosion of different materials, including magnesium alloys . However, currently chromate applications are strictly limited . As an alternative to chromate anions, phosphate, carbonate, molybdate, vanadate, selenite, and permanganate anions were examined . The protective action of these inhibitors is based on the oxidationreduction mechanism, involving the formation of a surface layer, suppressing the cathodic activity of IMPs and the anodic activity of the Mg matrix .