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腐蚀电化学多参数相关法研究有机涂层失效子过程特征

, PP. 319-324

Keywords: 有机涂层,相关法,开路电势,电化学阻抗谱,扫描Kelvin探针

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Abstract:

同步采用电化学阻抗和腐蚀电位等平均信息方法以及Kelvin探针电位分布信息方法研究了有机涂层失效过程特征及其相关性.研究发现,有机涂层失效过程的电化学阻抗、腐蚀电位、电位分布等特征和腐蚀电动势数据具有腐蚀相关性,其对应有机涂层失效子过程均具有特征响应.与单一参数分析相比,多参数相关分析方法能够同时从多个不同角度识别和评价涂层失效过程的进展,能够获得涂层失效各个子过程进程的更深入的信息.

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