Effect of laser shock peening on the stress corrosion cracking of AZ31B magnesium alloy in a simulated body fluid

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• 作者：Mao-Zhong Ge^a ; ^{gmzxjy@126.com} ; Jian-Yun Xiang^b ; L. Yang^a ; J.T. Wang^a
• 关键词：Laser shock peening ; AZ31B Mg alloy ; Grain refinement ; Stress corrosion cracking
• 刊名：Surface and Coatings Technology
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：310
• 期：Complete
• 页码：157-165
• 全文大小：2325 K
• 卷排序：310

文摘

Nano-grains can be formed in AZ31B by two-sided simultaneous laser shock peening. LSP induces symmetric compressive residual stress on both sides of 4 mm thick AZ31B. Corrosion potential of LSP sample increased 131 mV compared to original sample. Corrosion current density of LSP sample reduced by 85.4% compared to original sample. SCC susceptibility index of LSP sample reduced by 47.5% compared to original sample.