腐蚀形貌对镁合金电化学阻抗谱特征的影响研究

许诗源, 孟鑫, 杨亚璋, 刘辰, 张昭, 方晓祖

Effect of Corrosion Morphology on Electrochemical Impedance Spectroscopy Characteristics of Mg-alloy

XU Shiyuan, MENG Xin, YANG Yazhang, LIU Chen, ZHANG Zhao, FANG Xiaozu

图2 纯镁和AZ31镁合金样品3.5%NaCl溶液中浸泡24 h后的电化学阻抗谱测试结果

Fig.2 EIS results of pure Mg and AZ31 Mg-alloy samples after immersion in 3.5%NaCl solution for 24 h: (a) Nyquist plot of pure Mg samples, (b) Nyquist plot of AZ31 Mg-alloy samples, (c) frequency-phase angle plot, (d) frequency-modulus plot