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1. 位错环与微裂纹相互作用模型示意图
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Fig.1. Schematics of interaction between the interstitial dislocation loop and micro-crack (l—distance between dislocation loop and crack tip in Y direction, R—radius of dislocation loop, d—distance between dislocation loop and crack tip in X direction, P—the position of the crack tip, k—slope of crack, 2θ—crack tip opening angle)(a) crack is inside of the material(b) crack is from the free surface of material
