Effect of laser shock peening on fatigue properties of U75VG rail flash-butt welding joints

Xiaoya Li,Rui Ma,Xin Liu,Qibing Lv,Xiao Wang,Zeng Tian

Optics & Laser Technology（2022）

引用 13|浏览4

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摘要

•Laser shock peening improved the fatigue properties of rail welded joints.•Dislocation density, residual stress, and their relationship with fatigue life.•Fatigue S-N curves and fracture morphology was analyzed.

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关键词

Flash welding,Laser shock peening,Residual stresses,Bending fatigue damage,Railway

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