超声冲击对增材制造组织改善及强化机理影响的研究进展

孙徕博, 黄陆军, 黄瑞生, 徐锴, 武鹏博, 龙伟民, 姜风春, 方乃文

Progress in the Effect of Ultrasonic Impact Treatment on Microstructure Improvement and Strengthening Mechanism in Additive Manufacturing

SUN Laibo, HUANG Lujun, HUANG Ruisheng, XU Kai, WU Pengbo, LONG Weimin, JIANG Fengchun, FANG Naiwen

图8 超声冲击强化增材制造过程中组织演变示意图[76]

Fig.8 Schematics of microstructure evolution during UIT strengthening AM[76] (a) before UIT (b) dislocation merging and annihilating(c) subgrains formation (d) microstructure refinement