阴极保护下局部腐蚀的电化学测量方法

ECS Electrochemistry Letters Pub Date : 2014-11-12 DOI:10.1149/2.0091501EEL

F. Varela, M. Tan, M. Forsyth

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引用次数: 18

摘要

提出了一种在阴极保护下测量金属腐蚀速率及其分布的新方法。该方法采用电化学集成多电极阵列，在模拟连续金属表面的同时，对阴极电流密度进行局部测量。分析了阴极电流密度分布，估算了阵列各电极处的阳极电流分量。该方法测定的腐蚀模式与多电极阵列表面的目视检测和表面轮廓测量具有良好的相关性。

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An Electrochemical Method for Measuring Localized Corrosion under Cathodic Protection

A new method has been developed to measure metal corrosion rates and their distribution under cathodic protection (CP). This method uses an electrochemically integrated multi-electrode array to take local measurements of cathodic current density while simulating a continuous metallic surface. The distribution of cathodic current densities obtained under CP was analyzed to estimate the anodic current component at each electrode of the array. Corrosion patterns determined by this new method have shown good correlation with visual inspection and surface profilometry of the multi-electrode array surface.

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来源期刊

ECS Electrochemistry Letters ELECTROCHEMISTRY-MATERIALS SCIENCE, MULTIDISCIPLINARY

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