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6. d=1.5 nm、R=1.5 nm、k=0.15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) initial state when the loop and micro-crack start to contact with each other for further reaction；(b) formation of dislocation network after the formation of <100> and 1/2<111> segments；(c) state of 1/2<111>dislocation which ends on the surface of micro-crack after the initial relaxation and <100> dislocation located at the tip of micro-crack；(d) final rugged tip after the dislocation loop has been absorbed by micro-crack
Fig.6. Evolutions of the system with the interaction between the dislocation loop and micro-crack with d=1.5 nm, R=1.5 nm and k=0.15
