Effect of nitrite concentration on the corrosion behaviour of carbon steel pipelines in synthetic tap water

被引：67
|
作者：
Lee, Dong Young [1 ]
Kim, Woo Cheol [1 ]
Kim, Jung Gu [1 ]
机构：
[1] Sungkyunkwan Univ, Dept Adv Mat Engn, Suwon 440746, South Korea
来源：
CORROSION SCIENCE | 2012年 / 64卷
关键词：
Steel; EIS; IR spectroscopy; Pitting corrosion; Rust; IMPEDANCE; INHIBITION; PROTECTION; EIS; RESISTANCE; CONCRETE; ALLOYS; OXIDE;
D O I：
10.1016/j.corsci.2012.07.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study examines the effect of the continuous decrease of the nitrite concentration on the corrosion properties of a carbon steel pipeline in deaerated synthetic tap water. Passive film, which is composed mainly of maghemite (gamma-Fe2O3), was formed in synthetic tap water containing 200 ppm nitrite. A carbon steel pipeline in synthetic tap water containing 100 ppm nitrite was more susceptible to localised corrosion than that containing 50 ppm nitrite due to the effect of the small anode and large cathode area. Uniform corrosion dominates in synthetic tap water containing 50 ppm nitrite. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：105 / 114
页数：10
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