BCC/FCC双晶塑性变形的物理规律分子动力学研究

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Russian Physics Journal Pub Date : 2025-02-13 DOI:10.1007/s11182-025-03396-1

A. I. Dmitriev, A. Yu. Nikonov

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引用次数: 0

摘要

本文采用分子动力学方法研究了由BCC和FCC晶粒组成的双金属试样的变形行为。分析了晶粒取向对单轴压缩和拉伸的影响。研究了α -铁晶粒与铜或镍的界面。FCC金属的选择取决于层错能的高低。结果表明，双晶的变形既可以在一个晶粒中发生，也可以在两个晶粒中发生。这不仅取决于材料及其强度性能，还取决于这些性能在加载方向上的晶体各向异性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Physical regularities of BCC/FCC bicrystal plastic deformation. A molecular dynamics study

In the present work, the deformation behavior of bimetal specimens consisting of BCC and FCC grains is studied by the molecular dynamics method. The influence of crystallographic orientation of grains on uniaxial compression and tension is analyzed. The α‑iron grains interfacing with copper or nickel are investigated. The choice of FCC metals is governed by different levels of the specific stacking fault energy. The results obtained show that deformation of bicrystals can develop either in one or both grains. This is determined not only by the material and its strength properties, but also by the crystallographic anisotropy of these properties with respect to the loading direction.

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.