期刊论文

Xiao, SF

英文

International Journal of Mechanical Sciences

0020-7403

2022

217

107032

10.1016/j.ijmecsci.2021.107032

This work is financially supported by the National Key R&D Program of China ( 2017YFB0202303 ), the National Natural Science Foundation of China ( NSFC 51871094 , 51871095 , NSFC-NSAF U1830138 ), and National Key Laboratory Project of Shock Wave and Detonation Physics . The authors would like to acknowledge the support of the computation platform of the National Super-Computer Center in Changsha (NSCC) .

本校为其他机构

Cylindrically divergent shock loading significantly influences the plasticity and phase transition of iron. In this study, the mechanisms of plasticity and α→ε phase transition are investigated using large-scale nonequilibrium molecular dynamics simulation. We find that iron undergoes a local bcc–hcp–bcc–hcp (bcc: body-centered cubic; hcp: hexagonal close-packed) phase transition under cylindrically divergent shock loading with cylinder axis lying in [001] and [110] directions. A bcc lattice reorientation driven by resolved shear stress o...