An investigation of cathodic oxygen reduction beneath an intact organic coating on mild steel and its relevance to cathodic disbonding

被引:23
作者
Bi, Huichao [1 ]
Sykes, John [1 ]
机构
[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
关键词
Epoxy; EIS; Cathodic disbonding; Intact coating; Tafel law; SCANNING ACOUSTIC MICROSCOPY; POLYMERIC COATINGS; KELVIN PROBE; PROTECTION; CORROSION; DELAMINATION; INTERFACE; FILMS;
D O I
10.1016/j.porgcoat.2015.05.015
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
An epoxy-coated mild steel panel was coupled with bare mild steel to characterise the cathodic reaction underneath the paint and study the short term change in properties of the coating under cathodic polarisation. It showed that the cathodic reaction obeys the Tafel law and is not controlled by either the high coating resistance or oxygen transport through the coating. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:83 / 87
页数:5
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