Effects of Laser Shock Processing on Corrosion Properties of 304 Stainless Steel
The surface of 304 stainless steel was processed by laser shock wave，its surface micro-stmctures were observed with SEM，and residual stresses on its surface were measured with X-ray diffraction fXRD)stress tester，and the production mechanism of residual stress was analyzed． The experiment of stress corrosion in 25％NaCl aqueous solution was finished．the crack sensitivity of stress corrosion in NaCl aqUCOUS solution was researched．and the effects of LSP on stress corrosion resistance were analyzed．The results shown that the refined hardened．1ayer is acquired on the surface of 304 stainless steel by LSP．and compressive residual stress has greatly increased．which ireprove availably the performances of stress corrosion resistant．The time of appearing cracks is inverse ratio with compressive residual stress，and LSP decreases effectively its stress corrosion cracks．
Laser shock processing 304 stainless steel Residual stress Stress corrosion
D.J.Kong H.Miao A.P.Hu
College of Mechanical & Energy Engineering,Jiangsu Polytechnic University,Changzhou,213016,P．R．China College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,
国际会议
常州
英文
109-113
2009-11-19（万方平台首次上网日期，不代表论文的发表时间）