通过对多金属偶合体系中金属电极发生的电极反应过程进行研究,分析各电极反应电流对其极化率的影响规律,并对电极过程进行适当简化处理,建立了基于混合电位理论的多金属偶合腐蚀模型.通过与试验结果进行比对发现该模型对于预测简单偶合体系中的偶合电位具有较好的准确性.
Electrode reaction process of metal electrode in a multi-metal coupling sysetm was studied,and the effecting law of electrode reaction current on polarization ratio was analyzed.Multi-metal coupling corrosion model was established based on the mixed potential theory after proposing some assumption about the reaction.The forecast results by multi-metal coupling corrosion model to corrosion tendency showed a good agreement with the experimental results.
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