Warm shot peening achieves higher fatigue strength and longer fatigue life compared to room temperature shot peening,which meets the needs of high cycle fatigue and complex working conditions.Research on warm shot peening process provides a basis for developing shot peening techniques tailored to different materials.The research progress of warm blast shot blasting in recent years is reviewed in this paper.The relationship between warm blast blasting technology,structure and properties is summarized.The mechanism that the stability of residual compressive stress can be improved by the use of dislocation structure is described.The reasons for the higher fatigue strength and fatigue life are discussed.The effects of warm peening temperature and the hardness of shots are analyzed.The advantages and disadvantages are explored.Based on the relationship between composition,process,microstructure,and property,the theoretical system for warm shot peening should be established in subsequent production.
维普
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