Effect of sulphide pollutants on mild steel corrosion in 3.5% NaCl solutions

被引：5
|
作者：
Wang, X. T. [1 ]
Hou, B. R. [1 ]
机构：
[1] Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
来源：
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2010年 / 45卷 / 01期
关键词：
Sulphide pollutants; Mild steel; Corrosion; Pitting; COPPER-NICKEL-ALLOYS; ELECTROCHEMICAL-BEHAVIOR; EROSION-CORROSION; CARBON-STEEL; SEAWATER;
D O I：
10.1179/147842209X12476568584188
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Corrosion behaviour of mild steel in 3.5% NaCl solution containing sulphide pollutants was investigated using potentiodynamic polarisation measurement, electrochemical impedance spectroscopy and scanning electron microscopy. Reaction and mechanism of the corrosion process were discussed. The study shows that sulphide concentration had a remarkable effect on pitting corrosion. Sulphide pollutants exhibited inhibition effect with passive film in the initial stage of corrosion. When the passive film breaks down, sulphide would accelerate the corrosion process.
引用
收藏
页码：57 / 60
页数：4
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