Improving the Electrochemical Properties of Zinc with an Elevated Content of Iron

Aluminum, manganese, silicon, and cadmium are recommended as alloying components for upgrading the current-generating efficiency of the galvanic protection of metal constructions with the use of anodes cast of zinc-alloy highly contaminated with iron. The optimum content of the alloying components ensuring the enhancement and stabilization of the principal electrochemical properties, particularly, the current-generating efficiency of iron-containing zinc. It is experimentally shown that an excessive content of manganese, silicon, and cadmium leads to the development of structural and electrochemical heterogeneity of alloys and, hence, to a decrease and destabilization of the current-generating efficiency of the anodes.