Atomic simulations of deformation mechanisms of crystalline Mg/amorphous Mg-Al nanocomposites

H. Y. Song; Y. L. Li

doi:10.1016/j.physleta.2015.06.038

Atomic simulations of deformation mechanisms of crystalline Mg/amorphous Mg-Al nanocomposites

H. Y. Song, Y. L. Li

民航学院

Xi'an Shiyou University

科研成果: 期刊稿件 › 文章 › 同行评审

44 引用（Scopus）

摘要

Abstract The effects of amorphous boundary (AB) spacing on the deformation behavior of crystalline/amorphous (C/A) Mg/MgAl nanocomposites under tensile load are investigated using molecular dynamics method. The results show that the plasticity of nano-polycrystal Mg can be enhanced with the introduction of C/A interfaces. For samples 5.2 nm in AB spacing and larger, the superior tensile ductility and nearly perfect plastic flow behavior occur during plastic deformation. The studies indicate that the cooperative interactions between crystalline and amorphous are the main reason for excellent ductility enhancements in C/A Mg/MgAl nanocomposites.

源语言	英语
文章编号	23288
页（从-至）	2087-2091
页数	5
期刊	Physics Letters, Section A: General, Atomic and Solid State Physics
卷	379
期	36
DOI	https://doi.org/10.1016/j.physleta.2015.06.038
出版状态	已出版 - 14 7月 2015

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title = "Atomic simulations of deformation mechanisms of crystalline Mg/amorphous Mg-Al nanocomposites",

abstract = "Abstract The effects of amorphous boundary (AB) spacing on the deformation behavior of crystalline/amorphous (C/A) Mg/MgAl nanocomposites under tensile load are investigated using molecular dynamics method. The results show that the plasticity of nano-polycrystal Mg can be enhanced with the introduction of C/A interfaces. For samples 5.2 nm in AB spacing and larger, the superior tensile ductility and nearly perfect plastic flow behavior occur during plastic deformation. The studies indicate that the cooperative interactions between crystalline and amorphous are the main reason for excellent ductility enhancements in C/A Mg/MgAl nanocomposites.",

keywords = "Crystalline/amorphous nanocomposites, Deformation behavior, Ductility, Molecular dynamics simulation",

author = "Song, {H. Y.} and Li, {Y. L.}",

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AU - Song, H. Y.

AU - Li, Y. L.

PY - 2015/7/14

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N2 - Abstract The effects of amorphous boundary (AB) spacing on the deformation behavior of crystalline/amorphous (C/A) Mg/MgAl nanocomposites under tensile load are investigated using molecular dynamics method. The results show that the plasticity of nano-polycrystal Mg can be enhanced with the introduction of C/A interfaces. For samples 5.2 nm in AB spacing and larger, the superior tensile ductility and nearly perfect plastic flow behavior occur during plastic deformation. The studies indicate that the cooperative interactions between crystalline and amorphous are the main reason for excellent ductility enhancements in C/A Mg/MgAl nanocomposites.

AB - Abstract The effects of amorphous boundary (AB) spacing on the deformation behavior of crystalline/amorphous (C/A) Mg/MgAl nanocomposites under tensile load are investigated using molecular dynamics method. The results show that the plasticity of nano-polycrystal Mg can be enhanced with the introduction of C/A interfaces. For samples 5.2 nm in AB spacing and larger, the superior tensile ductility and nearly perfect plastic flow behavior occur during plastic deformation. The studies indicate that the cooperative interactions between crystalline and amorphous are the main reason for excellent ductility enhancements in C/A Mg/MgAl nanocomposites.

KW - Crystalline/amorphous nanocomposites

KW - Deformation behavior

KW - Ductility

KW - Molecular dynamics simulation

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SN - 0375-9601

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JF - Physics Letters, Section A: General, Atomic and Solid State Physics

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M1 - 23288

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Atomic simulations of deformation mechanisms of crystalline Mg/amorphous Mg-Al nanocomposites

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