Corrosion under disbonded coatings having cathodic protection

被引：0
|
作者：
Song, FM
Kirk, DW
Graydon, JW
Cormack, DE
Wong, D
机构：
[1] Univ Toronto, Toronto, ON M5S 3E5, Canada
[2] ShawCor Ltd, Toronto, ON, Canada
来源：
MATERIALS PERFORMANCE | 2003年 / 42卷 / 09期
关键词：
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Corrosion under a disbonded coating can be a serious problem on pipelines under cathodic protection (CP) as CP current may not penetrate to the steel beneath the disbonded area. Pipe-to-soil potentials at the surface do not indicate conditions under disbonded coating. This article explains the corrosion mechanisms that occur beneath disbonded coating and makes suggestions to prevent coating disbondment in new construction.
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页码：24 / 26
页数：3
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