Preparation and Property of the Environment-Friendly Anodizing Oxidation Coating of AZ31 Magnesium Alloy
This paper deals with an environment-friendly anodizing oxidation process for AZ31 magnesium alloy. Good anti-corrosion anodizing oxidation coating was prepared on the surface of AZ31 magnesium under 10 mA/cm2 constant current at 20°C after 20 min. The anodic film of AZ31 was ivory-white, dense, uniform, compact and porous structure. The anodic film of AZ31 mainly consisted of MgO, Mg2SiO4.According to Tafel curve and EIS,the anodic film of AZ31 had better anti-corrosion property than the substrate AZ31. This anodic film could increase the anti-corrosion property of AZ31 effectively.
Zhong Wei Gu, Yafang Han, Fu Sheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Y. P. Liu et al., "Preparation and Property of the Environment-Friendly Anodizing Oxidation Coating of AZ31 Magnesium Alloy", Materials Science Forum, Vols. 610-613, pp. 936-941, 2009