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在绝大多数环境下，聚合物／金属界面的腐蚀破坏的本质是电化学过程，因此，不少电化学技术，包括直流稳态技术和交流阻抗技术等被广泛用于研究金属／聚合物界面的腐蚀破坏机制，评测有机涂层的耐蚀性能．然而，由于聚合物／金属界面腐蚀破坏的“闭塞”条件和聚合物膜层的高绝缘性，传统的电化学方法均不能直接获得聚合物／金属界面二维空间的腐蚀电位分布，难以直接研究聚合物／金属界面的腐蚀破坏过程及相关的影响因素．聚合物／金属界面腐蚀电位的测量有助于研究聚合物／金属等复合材料界面腐蚀破坏机理，评测有机聚合物涂覆层的耐蚀性能．本文提出一种微计算机控制的阵列电极技术，用于原位测量金属／聚合物界面电位分布．首次建立了８×８阵列电极和微机控制的阵列电极测量系统，可直接测量聚合物／金属界面腐蚀电位的二维分布．由此可深入研究有关腐蚀物种在聚合物相内传输过程，聚合物涂层的不均一性及缺陷分布，以及聚合物／金属界面腐蚀的发生、发展机制．应用阵列电极技术首次在原位获得聚合物涂层的缺陷分布及不均一性，并考查了聚合物涂层缺陷对诱导聚合物／金属界面腐蚀破坏的关系．阵列电极技术还首次提供了在聚合物／金属界面腐蚀破坏发展过程中阴、阳极同时存在，共同发展的直接的
In most environments, the nature of corrosion damage at the polymer / metal interface is electrochemical. Therefore, many electrochemical techniques, including DC steady state techniques and AC impedance techniques, are widely used to study metal / polymer interfaces Corrosion of the corrosion mechanism to evaluate the corrosion resistance of organic coatings. However, the traditional electrochemical methods can not directly obtain the corrosion potential distribution in the two-dimensional space of the polymer / metal interface due to the “occlusion” condition of the polymer / metal interface corrosion damage and the high insulation of the polymer film layer. Therefore, it is difficult to directly study Corrosion process of polymer / metal interface and related factors. The measurement of corrosion potential of polymer / metal interface is helpful to study the corrosion mechanism of interfacial corrosion of polymer / metal composites and evaluate the corrosion resistance of organic polymer coating. In this paper, a micro-computer controlled array electrode technology is proposed to measure the potential distribution of metal / polymer interface in situ. For the first time, an 8 × 8 array electrode and a microcomputer-controlled array electrode measurement system were established to directly measure the two-dimensional distribution of the corrosion potential of the polymer / metal interface. This can be further studied about the transmission of corrosive species in the polymer phase, polymer coating heterogeneity and defect distribution, and polymer / metal interface corrosion occurred, the development mechanism. The defect distribution and inhomogeneity of the polymer coating were obtained in situ for the first time by using the array electrode technology. The relationship between the polymer coating defects and the induced polymer / metal interface corrosion damage was also investigated. Array electrode technology also provides for the first time a direct, simultaneous development of both cathodes and anodes in the polymer / metal interface during the development of corrosion damage