Effect of machining-induced surface residual stress on initiation of stress corrosion cracking in 316 austenitic stainless steel

被引：121
|
作者：
Zhang, Wenqian [1 ]
Fang, Kewei [2 ]
Hu, Yujin [1 ]
Wang, Siyang [1 ]
Wang, Xuelin [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, State Key Lab Digital Mfg Equipment & Technol, Wuhan 430074, Peoples R China
[2] Suzhou Nucl Power Res Inst, Suzhou 215004, Peoples R China
来源：
CORROSION SCIENCE | 2016年 / 108卷
基金：
中国国家自然科学基金;
关键词：
Stainless steel; Stress corrosion; CHLORIDE SOLUTION; HIGH-TEMPERATURE; PIPELINE STEELS; PART; BEHAVIOR; RESISTANCE; WATER; MICROSTRUCTURE; SUSCEPTIBILITY; PROPAGATION;
D O I：
10.1016/j.corsci.2016.03.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of machining-induced surface residual stress on the stress corrosion cracking (SCC) initiation in 316 stainless steel was investigated in boiling magnesium chloride solution. The crack density was used to evaluate the SCC initiation and propagation at different residual stress levels. The results showed a strong correlation between the residual stress and the resultant micro-crack density. When the residual stress reached a critical value, the micro-crack density increased significantly in the very early phase, and the critical stress is 190 MPa for 316 stainless steel. Additionally, the cracking behavior could be correlated with the machining effects on the surface layer. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：173 / 184
页数：12
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