测量不锈钢电化学噪声的非对称表面方法

刘微

Asymmetric Surface Configuration for Electrochemical Noise Measurement on Stainless Steel

LIU Wei

图1 单个电极上形成点蚀生长电流暂态的等效电路模型

Fig.1 Equivalent circuit model of pitting growth current transient formed on one electrode, where ic1 represents the electron current transient released due to pitting growth and is shunt into two parts. One part flows through the impedance of the local electrode, and the other part flows to the impedance of the opposite electrode via ZRA. The electrode impedance can be equivalent to the parallel connection of the cathode reaction resistance Rc and the double-layer capacitor Cdl