Effect of electropolishing on corrosion of nuclear grade 316L stainless steel in deaerated high temperature water

被引：73
|
作者：
Han, Yaolei [1 ]
Mei, Jinna [2 ]
Peng, Qunjia [1 ]
Han, En-Hou [1 ]
Ke, Wei [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China
[2] Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China
来源：
CORROSION SCIENCE | 2016年 / 112卷
基金：
中国国家自然科学基金;
关键词：
Stainless steel; XPS; TEM; High temperature corrosion; NICKEL-BASE ALLOYS; OXIDE-FILMS; SURFACE PREPARATION; DISSOLVED HYDROGEN; PASSIVE FILMS; BEHAVIOR; OXIDATION; CRACKING; GROWTH; 304-STAINLESS-STEEL;
D O I：
10.1016/j.corsci.2016.09.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effect of change in surface composition and microstructure by electropolishing on corrosion of nuclear grade 316L stainless steel in deaerated high temperature water was investigated. The investigation was conducted by comparing the corrosion of electropolished surface (EPS) with that of the 40 nm-colloidal silica slurry polished surface (CPS), which has few composition change as well as few surface residual strain. The result revealed that the EPS had a higher corrosion rate than the CPS, which is attributed to formation of an amount of hydroxide at the EPS. (C) 2016 Elsevier Ltd. All rights reserved.
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页码：625 / 634
页数：10
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