Technique of laser shot peening to improve the metal resistance of stress corrosion cracking

CHEN Ju-fang; LI Xing-cheng; LI Ren-xing; SHEN Lai-di; ZHANG Yong-kang

doi:10.3969/j.issn.1001-3806.2011.01.012

The working principle of laser shot peening was introduced. The change of microstructure, the forming mechanism and distribution of compressive residual stress in the surface modification layer were described. The effect and mechanism of laser shot peening on resistance of stress corrosion cracking were analyzed in detail. On the base of comparing with shot peening, the superiorities of laser shot peening in improving metal resistance of stress corrosion cracking were summarized. Finally its potential application was also presented.

Technique of laser shot peening to improve the metal resistance of stress corrosion cracking

1. School of Materials Science and Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China;

2. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China

Received Date: 2010-03-15

Accepted Date: 2010-03-31

Available Online: 2011-01-25

Abstract: The working principle of laser shot peening was introduced. The change of microstructure, the forming mechanism and distribution of compressive residual stress in the surface modification layer were described. The effect and mechanism of laser shot peening on resistance of stress corrosion cracking were analyzed in detail. On the base of comparing with shot peening, the superiorities of laser shot peening in improving metal resistance of stress corrosion cracking were summarized. Finally its potential application was also presented.

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Reference (18)

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Technique of laser shot peening to improve the metal resistance of stress corrosion cracking

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References

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通讯作者: 陈斌, bchen63@163.com

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