EIS研究7050铝合金在NaCl溶液空蚀作用下的界面状态与腐蚀机制

夏大海, 潘成成, 郭玉杰, 胡文彬, TRIBOLLET Bernard

Electrochemical Impedance Spectroscopy Analysis on Interface State and Corrosion Mechanism of 7050 Al-alloy Subjected to Cavitation Erosion in NaCl Solution

XIA Da-Hai, PAN Chengcheng, GUO Yujie, HU Wenbin, TRIBOLLET Bernard

图9 7050铝合金在空蚀条件下测得电化学阻抗谱与非线性回归结果的对比

Fig.9 Nyquist diagrams of the 7050 Al-alloy electrode after 1 h (a), 2 h (b) and 4 h (c) cavitation erosion in 3.5%NaCl solution and the result of the fitting procedure with the model (Eqs. (30) and (33)) (Solid line)