Effect of interface structure on deformation behavior of crystalline Cu/amorphous CuZr sandwich structures

H. Y. Song; J. J. Xu; Q. Deng; Y. L. Li

doi:10.1016/j.physleta.2018.10.019

Effect of interface structure on deformation behavior of crystalline Cu/amorphous CuZr sandwich structures

H. Y. Song, J. J. Xu, Q. Deng, Y. L. Li

School of Civil Aviation

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The effect of interface types (namely, sharp interface and graded interface) and its thickness on the deformation behavior of crystalline/amorphous/crystalline sandwich structures (CACSSs) under tensile loading are studied using molecular dynamics simulation. Compared with the CACSSs with sharp interface, the CACSSs with gradient interface consistently exhibit good plasticity when the interface thickness is larger than 6 nm, due to the coupling effects among crystalline layer, amorphous layer and crystalline–amorphous interface. With the increase of interface thickness, the plastic deformation mechanism of CACSSs with gradient interface changes from the local plastic deformation in amorphous layer to the homogeneous plastic deformation.

Original language	English
Pages (from-to)	215-220
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	383
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physleta.2018.10.019
State	Published - 12 Jan 2019

Keywords

Deformation behavior
Graded interface
Molecular dynamics simulation
Plasticity

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10.1016/j.physleta.2018.10.019

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title = "Effect of interface structure on deformation behavior of crystalline Cu/amorphous CuZr sandwich structures",

abstract = "The effect of interface types (namely, sharp interface and graded interface) and its thickness on the deformation behavior of crystalline/amorphous/crystalline sandwich structures (CACSSs) under tensile loading are studied using molecular dynamics simulation. Compared with the CACSSs with sharp interface, the CACSSs with gradient interface consistently exhibit good plasticity when the interface thickness is larger than 6 nm, due to the coupling effects among crystalline layer, amorphous layer and crystalline–amorphous interface. With the increase of interface thickness, the plastic deformation mechanism of CACSSs with gradient interface changes from the local plastic deformation in amorphous layer to the homogeneous plastic deformation.",

keywords = "Deformation behavior, Graded interface, Molecular dynamics simulation, Plasticity",

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AU - Song, H. Y.

AU - Xu, J. J.

AU - Deng, Q.

AU - Li, Y. L.

PY - 2019/1/12

Y1 - 2019/1/12

N2 - The effect of interface types (namely, sharp interface and graded interface) and its thickness on the deformation behavior of crystalline/amorphous/crystalline sandwich structures (CACSSs) under tensile loading are studied using molecular dynamics simulation. Compared with the CACSSs with sharp interface, the CACSSs with gradient interface consistently exhibit good plasticity when the interface thickness is larger than 6 nm, due to the coupling effects among crystalline layer, amorphous layer and crystalline–amorphous interface. With the increase of interface thickness, the plastic deformation mechanism of CACSSs with gradient interface changes from the local plastic deformation in amorphous layer to the homogeneous plastic deformation.

AB - The effect of interface types (namely, sharp interface and graded interface) and its thickness on the deformation behavior of crystalline/amorphous/crystalline sandwich structures (CACSSs) under tensile loading are studied using molecular dynamics simulation. Compared with the CACSSs with sharp interface, the CACSSs with gradient interface consistently exhibit good plasticity when the interface thickness is larger than 6 nm, due to the coupling effects among crystalline layer, amorphous layer and crystalline–amorphous interface. With the increase of interface thickness, the plastic deformation mechanism of CACSSs with gradient interface changes from the local plastic deformation in amorphous layer to the homogeneous plastic deformation.

KW - Deformation behavior

KW - Graded interface

KW - Molecular dynamics simulation

KW - Plasticity

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M3 - 文章

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SN - 0375-9601

VL - 383

SP - 215

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

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

IS - 2-3

ER -

Effect of interface structure on deformation behavior of crystalline Cu/amorphous CuZr sandwich structures

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Keywords

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