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Microstructurally Based Cross-slip Mechanisms and Their Effects on Dislocation Microstructure Evolution in fcc Crystals.

机译：基于微观结构的滑移机制及其对fcc晶体中位错组织演变的影响。

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Three newly identified cross-slip mechanisms from atomistic simulations of fcc crystals, namely surface, bulk and intersection cross-slip types, were hierarchically informed into discrete dislocation dynamics simulations. The influence of each cross-slip type on the evolution of the dislocation microstructure in face-centered cubic microcrystals having different crystal sizes and initial dislocation densities was investigated. Dislocation pattern formation, surface slip localization and initial strain hardening were observed, in agreement with experimental observations, and possible explanations are given in the light of these simulations.

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Hussein, A. M.; Rao, S. I.; Uchic, M. D.; Dimiduk, D. M.; El-Awady, J. A.;
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年度 2015
页码 1-12
总页数 12
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Crystals; Microstructure; Computations; Dislocations; Dynamics; Patterns; Simulation; Strain hardening; Cross-slip; Ddd(discrete dislocation dynamics); Dislocation patterning; Fcc crystals; Microcrystals;

机译：晶体;微观结构;计算;位错;动力学;模式;模拟;应变硬化;交叉滑移; Ddd（离散位错动力学）;位错图案化; Fcc晶体;微晶;
入库时间 2022-08-29 10:47:24

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Microstructurally Based Cross-slip Mechanisms and Their Effects on Dislocation Microstructure Evolution in fcc Crystals.

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