Strain-field evolution in a CuZr-based bulk metallic glass composite during tensile deformation

Zhiliang Ning; Weizhong Liang; Zhijie Kang; Haichao Sun; Jianfei Sun

doi:10.1016/j.msea.2017.05.020

Strain-field evolution in a CuZr-based bulk metallic glass composite during tensile deformation

Zhiliang Ning^*
, Weizhong Liang
, Zhijie Kang
, Haichao Sun
, Jianfei Sun

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Heilongjiang University of Science and Technology
Harbin Institute of Technology

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

12 Scopus citations

Abstract

Bulk metallic glass composites (BMGCs) reinforced with a B2-CuZr phase exhibit improved ductility. However, the relationship between the macroscopic plastic deformation of BMGCs and the microscopic strain evolution is still poorly understood. Here, we investigated the strain-field evolution of a Cu_44.3Zr₄₈Al₄Nb_3.7 (at%) BMGC by using an in-situ digital image correlation technique during tensile deformation. The strain-field evolution in the composite containing B2-CuZr particles was analysed and compared to that in a Cu₄₇Zr₄₈Al₄Nb₁ BMG. We found that a high degree of shear strain heterogeneity played a key role in the macroscale plastic deformation, which was attributed to the intrinsic structural heterogeneities. These findings have implications for the development of BMGCs with excellent tensile properties.

Original language	English
Pages (from-to)	233-237
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	697
DOIs	https://doi.org/10.1016/j.msea.2017.05.020
State	Published - 14 Jun 2017

Keywords

Bulk metallic glass composite
Digital image correlation technique
Plastic deformation
Strain heterogeneity

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10.1016/j.msea.2017.05.020

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title = "Strain-field evolution in a CuZr-based bulk metallic glass composite during tensile deformation",

abstract = "Bulk metallic glass composites (BMGCs) reinforced with a B2-CuZr phase exhibit improved ductility. However, the relationship between the macroscopic plastic deformation of BMGCs and the microscopic strain evolution is still poorly understood. Here, we investigated the strain-field evolution of a Cu44.3Zr48Al4Nb3.7 (at\%) BMGC by using an in-situ digital image correlation technique during tensile deformation. The strain-field evolution in the composite containing B2-CuZr particles was analysed and compared to that in a Cu47Zr48Al4Nb1 BMG. We found that a high degree of shear strain heterogeneity played a key role in the macroscale plastic deformation, which was attributed to the intrinsic structural heterogeneities. These findings have implications for the development of BMGCs with excellent tensile properties.",

keywords = "Bulk metallic glass composite, Digital image correlation technique, Plastic deformation, Strain heterogeneity",

author = "Zhiliang Ning and Weizhong Liang and Zhijie Kang and Haichao Sun and Jianfei Sun",

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year = "2017",

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day = "14",

doi = "10.1016/j.msea.2017.05.020",

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TY - JOUR

T1 - Strain-field evolution in a CuZr-based bulk metallic glass composite during tensile deformation

AU - Ning, Zhiliang

AU - Liang, Weizhong

AU - Kang, Zhijie

AU - Sun, Haichao

AU - Sun, Jianfei

PY - 2017/6/14

Y1 - 2017/6/14

N2 - Bulk metallic glass composites (BMGCs) reinforced with a B2-CuZr phase exhibit improved ductility. However, the relationship between the macroscopic plastic deformation of BMGCs and the microscopic strain evolution is still poorly understood. Here, we investigated the strain-field evolution of a Cu44.3Zr48Al4Nb3.7 (at%) BMGC by using an in-situ digital image correlation technique during tensile deformation. The strain-field evolution in the composite containing B2-CuZr particles was analysed and compared to that in a Cu47Zr48Al4Nb1 BMG. We found that a high degree of shear strain heterogeneity played a key role in the macroscale plastic deformation, which was attributed to the intrinsic structural heterogeneities. These findings have implications for the development of BMGCs with excellent tensile properties.

AB - Bulk metallic glass composites (BMGCs) reinforced with a B2-CuZr phase exhibit improved ductility. However, the relationship between the macroscopic plastic deformation of BMGCs and the microscopic strain evolution is still poorly understood. Here, we investigated the strain-field evolution of a Cu44.3Zr48Al4Nb3.7 (at%) BMGC by using an in-situ digital image correlation technique during tensile deformation. The strain-field evolution in the composite containing B2-CuZr particles was analysed and compared to that in a Cu47Zr48Al4Nb1 BMG. We found that a high degree of shear strain heterogeneity played a key role in the macroscale plastic deformation, which was attributed to the intrinsic structural heterogeneities. These findings have implications for the development of BMGCs with excellent tensile properties.

KW - Bulk metallic glass composite

KW - Digital image correlation technique

KW - Plastic deformation

KW - Strain heterogeneity

UR - https://www.scopus.com/pages/publications/85019058186

U2 - 10.1016/j.msea.2017.05.020

DO - 10.1016/j.msea.2017.05.020

M3 - 文章

AN - SCOPUS:85019058186

SN - 0921-5093

VL - 697

SP - 233

EP - 237

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Strain-field evolution in a CuZr-based bulk metallic glass composite during tensile deformation

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Keywords

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