含氧纳米多晶 α-Ti拉伸力学性能与变形机制的分子动力学模拟

任军强, 邵珊, 王启, 卢学峰, 薛红涛, 汤富领

Molecular Dynamics Simulation of Tensile Mechanical Properties and Deformation Mechanism of Oxygen-Containing Nano-Polycrystalline α-Ti

REN Junqiang, SHAO Shan, WANG Qi, LU Xuefeng, XUE Hongtao, TANG Fuling

图9 不同温度下多晶Ti-0.3O拉伸过程中晶界的运动

Fig.9 Grain boundary movement of polycrystalline Ti-0.3O at 300 K (a-c), 500 K (d-f), and 700 K (g-i) with ε = 0 (a, d, g), ε = 0.086 (b, e, h), and ε = 0.166 (c, f, i) (Black dotted circles in Figs.9b, c, e, f, h, and i represent the disordered atoms caused by lattice distortion after adding interstitial O atoms, and dotted yellow circles represent the disordered atoms produced during the strain at different temperatures)