Understanding the effects of applied cathodic protection potential and environmental conditions on the rate of cathodic disbondment of coatings by means of local electrochemical measurements on a multi-electrode array

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• 作者：Fariba Mahdavi ; Maria Forsyth ; Mike Y.J. Tan ; ^{mike.tan@deakin.edu.au}
• 关键词：Polymer coating ; Multi-electrode array ; Cathodic protection ; Cathodic disbondment ; Coating testing ; Coating failure
• 刊名：Progress in Organic Coatings
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：103
• 期：Complete
• 页码：83-92
• 全文大小：4377 K
• 卷排序：103

文摘

The effect of CP potential on coating disbondment is studied using an electrode array. Coating disbondment accelerates at the hydrogen evolution ‘critical potential’. Coating disbondment spreads at an almost constant rate once it is initiated. The evolution of hydrogen appears to play a crucial role in coating disbondment.