Review of Surface Deformation Strengthening on the Fatigue Behavior of Metal Material

摘要

Fatigue strength is always a major barrier for structural applications of metal material. Many methods have been developed to enhance the fatigue strength of structural components. Compared to other methods, surface deformation strengthening is obviously more efficient, which is characterized by the larger improvement in fatigue strength and no pollution to the environment. To guarantee the durability and safety of structural components, it is crucial to understand the effect mechanism of surface deformation strengthening on the fatigue behavior. In this review, the research process of surface deformation strengthening is summarized in detail. The effect mechanism of fatigue performance is concluded, which is mainly due to the surface grain refinement, residual compressive stress, and surface damage. Moreover, several suggestions are presented to the future research direction.