Research Progress of Aluminium Alloy Sacrificial Anode Materials

According to actual applications,influence of alloying elements In,Zn,Ga,RE,Hg,Mg,Sn,Ti,Bi,Se and metal oxides ZnO,IrO2,RuO2 on electrochemical properties of aluminium sacrificial anode is discussed.The effect of solid solution treatment and annealing on morphology and current efficiency of anode is reviewed.The relation between alloy microstructure and anodic properties is introduced.The development trend of aluminium alloy anodes is expected.