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The Proceedings of Mechanical Engineering Congress Japan
In this study, fine particle bombarding treatment (FPB) was applied to A5052 aluminum alloy, the effects of FPB treatment time (5, 10, 20, 40s) on the near-surface microstructure hardness, and fatigue strength was examined. The near-surface microstructure of 20s and 40s FPBed Al-Alloy was nano-crystallized, and lamellar structures were partially formed. The average grain sizes in and around lamellar structure are 65nm and 125nm by TEM observation. The relationship between hardness and graindoi:10.1299/jsmemecj.2016.g0400405 fatcat:uheo34aefbf67mf67wvicxm2gi