The evolution of electrochemical behaviour and oxide film properties of 304 stainless steel in high temperature aqueous environment

被引:95
|
作者
Xu, Jian [1 ]
Wu, Xinqiang [1 ]
Han, En-Hou [1 ]
机构
[1] Chinese Acad Sci, Inst Met Res, Liaoning Key Lab Safety & Assessment Tech Nucl Ma, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
关键词
Stainless steel; Polarization; EIS; XPS; Oxide film; 316L STAINLESS-STEEL; X-RAY PHOTOELECTRON; MIXED-CONDUCTION MODEL; BORATE BUFFER SOLUTION; NICKEL-BASED ALLOYS; CORROSION BEHAVIOR; KINETIC-PARAMETERS; PASSIVE FILMS; WATER; ELECTROLYTE;
D O I
10.1016/j.electacta.2012.03.148
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The evolution of electrochemical behaviour and oxide film properties of 304 stainless steel in high temperature aqueous environment have been studied by polarization curves, electrochemical impedance spectra (EIS) and X-ray photoelectron spectroscopy (XPS). The electrochemical data indicate that the corrosion resistance of the steel increases with immersion time. The EIS and XPS analyses show that the oxide films are a duplex structure and the corrosion rate is dominated mainly by the Cr-rich inner layer. The correlation between the evolution of the electrochemical behaviour and the changes of the oxide film properties is discussed. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:219 / 226
页数:8
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