体心立方Fe中微裂纹与间隙型位错环相互作用的分子动力学模拟
梁晋洁1,2, 高宁2,3, 李玉红1(
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Interaction Between Interstitial Dislocation Loop and Micro-Crack in bcc Iron Investigated by Molecular Dynamics Method
LIANG Jinjie1,2, GAO Ning2,3, LI Yuhong1()
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图2. 位错环与裂纹尖端的水平距离(d)为1.5 nm、裂纹开裂斜率(k)为0.05、位错环半径(R)为1.5 nm时位错环与微裂纹相互作用的分子动力学演化过程
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(a) results after the conjugate gradient method relaxation；(b~e) molecular dynamics simulation results at 300 K under 0 Pa pressure with time up to 6×10-12 s, 9.9×10-12 s,1.7×10-11 s and 2.1×10-11 s, respectively
Fig.2. Evolutions of the system with the interaction between the dislocation loop and micro-crack with d=1.5 nm, k=0.05 and R=1.5 nm
