Corrosion Performance Study of Anodic Film Formed by Oxidizing Magnesium Alloy in Environmentally Friendly Electrolyte
The effect of different factors on the corrosion performance of the anodic ﬁlm formed on AZ31 was studied by using electrochemical impedance spectroscopy (EIS) and Tafel polarization curves techniques. The result of EIS showed that the oxide film formed at 20 mA·cm-2 had the highest corrosion resistance and the optimum temperature was 40°C. The similar conclusion was drawn by the Tafel polarization curves. Moreover, the equivalent electrical circuit R(C(R (QR))) (CR) was used to analyze the EIS data.
Yafang Han, Fusheng Pan, Jianmao Tang, Chungen Zhou
D. F. Zhang et al., "Corrosion Performance Study of Anodic Film Formed by Oxidizing Magnesium Alloy in Environmentally Friendly Electrolyte", Materials Science Forum, Vol. 686, pp. 17-20, 2011