This work was supported by the Natural Science Foundation of Hunan Province (Grant no. 2019JJ50662), Education Department of Hunan Province (Grant no. 18C0208) and National Key Research and Development Program of Hunan Province (Grant no. 2017GK2090).
机构署名：
本校为第一且通讯机构
院系归属：
汽车与机械工程学院
摘要：
This paper proposed an electromagnetic loading process with the high-speed impact. Al-4.2% Cu alloy bars were used to employ electromagnetic impact (EI) experiments. Deformation mechanism and microstructure evolution of EI samples were revealed by theoretical model and microstructure characterizations. The EI process had impact force (peak value 40kN) and impact velocity (peak value 6.7m/s) during a short time period (1.25ms). Adiabatic shearing mechanism dominated the whole deformation process, causing that significant microstructure character...
