Abstract In the present work, the role of cold deformation and anodic potential on the electrochemical response of pure nickel in borate buffer solutions were investigated. The application of cold deformation gave rise to a more localized microstructure that contained a greater number of fine grains. In order to investigation of the electrochemical response of specimens, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), and Mott–Schottky (M–S) analysis were performed. As a result, with increasing of applied potential, the polarization resistance and passive film thickness decreased. Also, density of electron acceptor at passive layer decreased by increasing of applied potential.

中文翻译：

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阳极电位对硼酸盐缓冲溶液中粗粒和细粒纯镍表面钝化层电化学响应的影响

摘要 在目前的工作中，研究了冷变形和阳极电位对纯镍在硼酸盐缓冲溶液中电化学响应的影响。冷变形的应用产生了包含更多细晶粒的更局部化的微观结构。为了研究样品的电化学响应，进行了动电位极化 (PDP)、电化学阻抗谱 (EIS) 和莫特-肖特基 (M-S) 分析。结果，随着施加电位的增加，极化电阻和钝化膜厚度减小。此外，被动层的电子受体密度随着施加电位的增加而降低。