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1 空蚀测试电解池示意图

Fig.1 Details of the electrochemical cell and the specimen fixture designed to implement a cavitation erosion condition: (a) schematic diagram of cavitation erosion experimental device, (b) photo of the horn tip, (c) photo of the working electrode for electrochemical measurements that was sealed in epoxy resin and fixed in the fixture by screw bolts, and the dimensions of 7050 Al-alloy specimens for electrochemical and nonelectrochemical tests (units: mm)