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    Effects of ultrasonic impact treatment on surface residual stress and electrochemical properties of 42CrMo4 steel by DONG Zheng, YANG Cong, GU Bangping, YANG Yuchen, GAO Liqiang, XU Guanhua

    Published 2025-01-01
    “…ObjectiveThe effects of different ultrasonic impact treatment time on cross section microstructure, surface residual stress, surface microhardness, and corrosion resistance of 42CrMo4 steel sample was investigated.ResultsThe results showed that after ultrasonic impact, a large amount of plastic deformation occurred on the surface of 42CrMo4 steel sample, which results in that the hardness could be increased. …”
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