Evaluation of temperature effect on the corrosion process of 304 stainless steel in high temperature water with electrochemical noise

被引:43
|
作者
Wang, Ke [1 ,2 ]
Wang, Jihui [1 ,2 ]
Hu, Wenbin [2 ]
机构
[1] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Composite & Funct Mat, Tianjin 300072, Peoples R China
关键词
Stainless steel; High temperature corrosion; EN; Raman spectroscopy; XPS; OXIDE-FILM PROPERTIES; STAINLESS-STEEL; STATISTICAL PARAMETERS; DISCRIMINANT-ANALYSIS; CHLORIDE SOLUTION; DISSOLVED-OXYGEN; BEHAVIOR; ALLOY; MECHANISM; CLUSTER;
D O I
10.1016/j.matdes.2015.05.044
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of temperature on corrosion process of 304 stainless steel (SS) in high temperature water was investigated by electrochemical noise (EN), scanning electron microscope (SEM), Raman spectrum and X-ray photoelectron spectroscopy (XPS). The experimental results showed that the corrosion process could be divided into two stages (passivity and active dissolution) with the increasing temperature. At 100 degrees C, the oxide film was a single layer mainly consisting of Cr2O3. However, at 250 degrees C, it became a double layer with an inner layer of Cr-Fe spinel compound and an out precipitated layer. The related growth mechanisms of the oxide film were also discussed. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:155 / 163
页数:9
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