Effect of corrosion medium composition on rate of crack growth in X70 pipeline steel

被引：0
|
作者：
A. B. Arabey
R. I. Bogdanov
V. E. Ignatenko
T. A. Nenasheva
A. I. Marshakov
机构：
[1] GAZPROM OJSC,Frumkin Institute of Physical Chemistry and Electrochemistry
[2] Russian Academy of Sciences,undefined
来源：
Protection of Metals and Physical Chemistry of Surfaces | 2011年 / 47卷
关键词：
Stress Corrosion Crack; Corrosion Potential; Anodic Dissolution; Anodic Process; Pipeline Steel;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The growth rates of corrosion cracks in X70 pipeline steel are determined in weakly acidic (pH 5.5) buffer solution with additives of a number of compounds that are a part of the soil electrolyte or are steel corrosion inhibitors. It is shown that the effect of components of electrolyte on the rate of crack growth agrees fairly well with their stimulating or inhibiting effect on the anodic dissolution of iron. The rates of hydrogen permeation into steel are measured and the effect of hydrogen absorbed by the metal on the anodic process in the studied corrosion media is considered.
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页码：236 / 245
页数：9
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