Effect of Immersion Time on Corrosion Resistance of Phytic Acid Coatings on AZ91 D-Mg Alloy
Phytic acid coatings were formed on AZ91D-Mg alloy during immersion in 5.0 g/L phytic acid solution for different time. The corrosion resistance of the bare and coated samples was investigated using Tafel polarization and Electrochemical Impedance Spectroscopy (EIS) methods, and the corresponding electrochemical corrosion parameters were analyzed. The results show that the anodic and cathodic corrosion processes of AZ91D-Mg alloy are conspicuously inhibited with phytic acid coatings; the overall corrosion resistance index of AZ91D-Mg alloy is increased with immersion time; and the corrosion protection efficiency of phytic acid coatings is up to 97.8％.
Magnesium Alloy Phytic Acid Coating Corrosion Resistance Polarization EIS
Bilan Lin Yuye Xu Wei Su
Department of Material Science and Engineering, Xiamen University of Technology, Xiamen,Fujian, 3610 College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, China
国际会议
上海
英文
1653-1656
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）