Dislocation equilibrium in a misfitted composite structure with partially coherent interfaces

IF 1.9 4区工程技术 Q3 MECHANICS

Mechanics Research Communications Pub Date : 2023-10-01 DOI:10.1016/j.mechrescom.2023.104168

Jérôme Colin

引用次数: 1

Abstract

The effect of misfit strain on the equilibrium positions of two edge dislocations of the same Burgers vector that are symmetrically displayed in a matrix with respect to its two interfaces with a thin film has been theoretically investigated from a Peach–Koehler force-based analysis. Assuming the film/matrix interfaces are partially coherent, the stable and unstable equilibrium positions of the dislocations have been determined as well as the resulting stability diagram versus the misfit strain, the interface inconsistency length and the layer thickness.

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部分共融界面错配复合结构中的位错平衡

用基于力的Peach-Koehler方法，从理论上研究了失配应变对矩阵中对称显示的相同Burgers向量的两个边缘位错的平衡位置的影响，这两个边缘位错相对于它与薄膜的两个界面来说是对称的。假设膜/基体界面是部分相干的，确定了位错的稳定和不稳定平衡位置，并确定了失配应变、界面不一致长度和层厚之间的稳定性图。

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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来源期刊

Mechanics Research Communications 物理-力学

CiteScore

4.10

自引率

4.20%

发文量

114

审稿时长

9 months

期刊介绍： Mechanics Research Communications publishes, as rapidly as possible, peer-reviewed manuscripts of high standards but restricted length. It aims to provide: • a fast means of communication • an exchange of ideas among workers in mechanics • an effective method of bringing new results quickly to the public • an informal vehicle for the discussion • of ideas that may still be in the formative stages The field of Mechanics will be understood to encompass the behavior of continua, fluids, solids, particles and their mixtures. Submissions must contain a strong, novel contribution to the field of mechanics, and ideally should be focused on current issues in the field involving theoretical, experimental and/or applied research, preferably within the broad expertise encompassed by the Board of Associate Editors. Deviations from these areas should be discussed in advance with the Editor-in-Chief.