Corrosion behaviour of AISI 304 stainless steel subjected to massive laser shock peening impacts with different pulse energies

被引：84
作者：
Lu, J. Z. [1 ]
Qi, H. [1 ]
Luo, K. Y. [1 ]
Luo, M. [1 ]
Cheng, X. N. [2 ]
机构：
[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
来源：
CORROSION SCIENCE | 2014年 / 80卷
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
Stainless steel; Alloy; SEM; Polarisation; Pitting corrosion; AUSTENITIC STAINLESS-STEEL; STRAIN-RATE TEST; 316L STEEL; MICROSTRUCTURE; RESISTANCE; HYDROGEN; FRACTURE; CRACKING; XPS;
D O I：
10.1016/j.corsci.2013.11.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Effects of massive laser shock peening (LSP) impacts with different pulse energies on ultimate tensile strength (UTS), stress corrosion cracking (SCC) susceptibility, fracture appearance and electrochemical corrosion resistance of AISI 304 stainless steel were investigated by slow strain rate test, potentiodynamic polarisation test and scanning electron microscope observation. The influence mechanism of massive LSP impacts with different pulse energies on corrosion behaviour was also determined. Results showed that massive LSP impacts effectively caused a significant improvement on UTS, SCC resistance, and electrochemical corrosion resistance of AISI 304 stainless steel. Increased pulse energy can also gradually improve its corrosion resistance. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：53 / 59
页数：7
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