The growth mechanism of CO2 corrosion product films

被引：183
作者：
Gao, M. [1 ]
Pang, X. [1 ]
Gao, K. [1 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 02期
关键词：
Steel; Iron; EIS; SEM; Oxidation; Interfaces; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; CARBON-DIOXIDE CORROSION; STEEL; SCALES; FLOW;
D O I：
10.1016/j.corsci.2010.09.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Carbon steel usually has high corrosion rate in water with dissolved CO2 however the steel surface can be covered by protective corrosion product film. Therefore the carbon steel can be widely used in oil and gas industry. This paper discusses the structure, electrochemistry performances, initiation and growth of protective corrosion product films. A duplex layer structure of FeCO3 films was found by electrochemical impedance spectrum (EIS). The physical and chemical situations of solution near carbon steel surface were investigated by ultraviolet spectrophotometry and chronopotentiometry. According to crystallography the growth mechanisms of protective CO2 corrosion product films were discussed. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：557 / 568
页数：12
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