Effect of laser bionic treatment on fatigue crack growth behavior of TIG welded AZ31B magnesium alloy joint

• Published in: Materials letters Vol. 320; p. 132334
• Main Authors: Meng, Chao, Zhang, Zhengqiang, Yang, Juntao, Zhuang, Weibin, Shi, Haifang
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.08.2022; Elsevier BV
• Subjects: Bionics; Crack propagation; Fatigue; Fatigue failure; Fractography; Fracture mechanics; Laser beam welding; Laser bionic; Magnesium alloy; Magnesium base alloys; Materials science; Strengthening; Welded joints; Welding; Fatigue; Laser bionic; Welding; Fractography; Magnesium alloy

•Grains of weld joint has refined by laser bionic treatment (LBT).•Fatigue behavior was correlated with ‘soft-hard’ alternating structure formed by LBT.•Roles of LBT in fatigue resistance improvement were discussed. In this study, laser bionic treatment (LBT) was utilized to improve the fatigue crac...