可移式电解槽测定涂装体系的交流阻抗  

ELECTROCHEMICAL IMPEDANCE MEASUREMENTS FOR STUDYING ANTI-CORROSION COATINGS USING PROBE CELLS

作　　者：温国谋[1] 蔡长寿[1] 刘碧环 郭景东[1] 苏方腾[1] 刘仁新 田伟东 

机构地区：[1]中国科学院福建物质结构研究所二部 [2]第二汽车制造厂

出　　处：《中国腐蚀与防护学报》1992年第1期63-70,共8页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金会;中国科学院腐蚀科学开放研究实验室课题

摘　　要：本工作采用探头式电解槽,对涂装了醇酸漆和电泳漆的A3钢片,进行了交流阻抗频谱测定,给出了评选结果,同时显示了采用双探头电解槽在评选测定应用中的优越性。The experimental approach for carrying out electrochemical impedance measuremerits for coated metals using probe cells is described. Equivalent circuit for the dualprobe cell is given, and the experimental impedance diagrams are discussed in terms ofcoating and interface properties and their changes during exposure to corrosive environmerits. The systems studied include alkyd coating and electrophoretic paints with or without inhibitor added. It is found that the potential difference △E_se for dual-probe cell taken each time before making impedance measurement has good correlation with the deterioration degree of the coating measured hereafter.

关 键 词：可移式 电解槽 涂装体系 交流阻抗 

分 类 号：TG174.3[金属学及工艺—金属表面处理]