Effects of laser peening on stress corrosion cracking (SCC) of ANSI 304 austenitic stainless steel

被引：151
|
作者：
Lu, J. Z. [1 ,5 ]
Luo, K. Y. [1 ]
Yang, D. K. [2 ]
Cheng, X. N. [3 ]
Hu, J. L. [4 ]
Dai, F. Z. [1 ]
Qi, H. [1 ]
Zhang, L. [1 ]
Zhong, J. S. [1 ]
Wang, Q. W. [1 ]
Zhang, Y. K. [1 ]
机构：
[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Peoples R China
[2] Deakin Univ, Inst Technol Res & Innovat, Waurn Ponds, Vic 3217, Australia
[3] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China
[4] Suzhou Nucl Power Res Inst Co Ltd, Suzhou 215004, Peoples R China
[5] Jiangsu Univ, Key Lab Modern Agr Equipment & Technol, Zhenjiang 212013, Peoples R China
来源：
CORROSION SCIENCE | 2012年 / 60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; TEM; XRD; Stress corrosion; MECHANICAL-PROPERTIES; GRAIN-REFINEMENT; MICROSTRUCTURE; ALLOY; BEHAVIOR; FATIGUE;
D O I：
10.1016/j.corsci.2012.03.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of massive laser peening (LP) impacts on surface residual stress, micro-structure, and stress corrosion cracking (SCC) behaviour of U-bend samples were investigated by X-ray diffraction (XRD) technology, optical microscope (OM) and transmission electron microscope (TEM) observations. Two important factors to influence SCC initiation, residual stress and grain refinement, were discussed in detail by using different types of treatment processes. Results showed massive LP impacts can induce both deep compressive residual stress and refined grains in the surface layer of ANSI 304 stainless steel, and the corrosion mechanism of massive LP impacts on SCC was also analysed and revealed. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：145 / 152
页数：8
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