Shock-induced migration of asymmetry tilt grain boundary in iron bicrystal: A case study of Σ3 [110] Project supported by the Fundamental Research for the Central Universities of China, the National Key Laboratory Project of Shock Wave and Detonation Physics of China, the Science and Technology Foundation of National Key Laboratory of Shock Wave and Detonation Physics of China, the National Key R&D Program of China (Grant No. 2017YFB0202303), the National Natural Science Foundation of China (Grant Nos. 51871094, 51871095, 51571088, NSFC-NSAF U1530151, and U1830138), the Natural Science Foundation of Hunan Province of China (Grant No. 2018JJ2036), and the Science Challenge Project of China (Grant No. TZ2016001). |
Atomic microstructure evolution of a shock-loaded iron bicrystal sample containing asymmetry tilt Σ3 [110] grain boundary with the 0.5 km/s piston velocity. The visualization window is fixed at 70–170 nm along the Z axis. Color code: HCP atoms (red), FCC atoms (green), defect atoms denoting the GB atoms (white), and BCC atoms (blue). |