A comprehensive review of fatigue behavior of laser shock peened metallic materials

Xiushuo Zhang, Yu'e Ma, Meng Yang, Chouting Zhou, Nanke Fu, Wei Huang, Zhenhai Wang

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

Laser shock peening (LSP) is widely used in manufacturing industry due to its contribution to the improvement of mechanical performance for metallic components. In practical applications, LSP processing that introduce compressive residual stress and finer grain in surface and subsurface, which affected the fatigue behaviors of metallic materials. Appropriate design of the processing parameters can significantly improve the fatigue performance. The fatigue of peened metallic materials is thus a topic of research and practical interest. In this review, a brief introduction on LSP and its applications is first provided. Then experimental studies on fatigue behaviors of LSP metallic materials are summarized with an emphasis on the effects of residual stress and microstructure on the fatigue improvements and fatigue failure mechanisms. Finally, recent progress in simulation studies on fatigue and fracture of LSP metallic materials is presented. The knowledge derived from this paper will provide insights and guidance to the applications of LSP.

Original languageEnglish
Article number103642
JournalTheoretical and Applied Fracture Mechanics
Volume122
DOIs
StatePublished - Dec 2022

Keywords

  • Fatigue and fracture
  • Laser shock peening
  • Metallic materials
  • Microstructure
  • Residual stress

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