Deformation-induced microstructural heterogeneity and rejuvenation in a Zr-based bulk metallic glass

Lianshun Zhang; Tuo Wang; Qiqi Hou; Qi Hao; Jichao Qiao

doi:10.1016/j.jnoncrysol.2021.121148

Deformation-induced microstructural heterogeneity and rejuvenation in a Zr-based bulk metallic glass

Lianshun Zhang, Tuo Wang, Qiqi Hou, Qi Hao, Jichao Qiao

School of Mechanics,Civil Engineering and Architecture

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

12 Scopus citations

Abstract

Phase separation has been observed in the glassy matrix of (Zr_62.5Cu_22.5F_e5Al₁₀)₉₄Nb₆ bulk metallic glass (BMG) when it has been performed by three-point bending. Cu-rich and Zr, Fe-rich zones have been found in the deformed BMG. The intensity of β-relaxation and the free volume are increased after the deforming process. The deformed BMG presents a work-hardening like behavior and it has a larger compressive plasticity than the undeformed BMG, which is attributed to the microstructural heterogeneity and rejuvenation by the deformation.

Original language	English
Article number	121148
Journal	Journal of Non-Crystalline Solids
Volume	574
DOIs	https://doi.org/10.1016/j.jnoncrysol.2021.121148
State	Published - 15 Dec 2021

Keywords

Bulk metallic glass
Deformation
Phase separation
Structural heterogeneity

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10.1016/j.jnoncrysol.2021.121148

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title = "Deformation-induced microstructural heterogeneity and rejuvenation in a Zr-based bulk metallic glass",

abstract = "Phase separation has been observed in the glassy matrix of (Zr62.5Cu22.5Fe5Al10)94Nb6 bulk metallic glass (BMG) when it has been performed by three-point bending. Cu-rich and Zr, Fe-rich zones have been found in the deformed BMG. The intensity of β-relaxation and the free volume are increased after the deforming process. The deformed BMG presents a work-hardening like behavior and it has a larger compressive plasticity than the undeformed BMG, which is attributed to the microstructural heterogeneity and rejuvenation by the deformation.",

keywords = "Bulk metallic glass, Deformation, Phase separation, Structural heterogeneity",

author = "Lianshun Zhang and Tuo Wang and Qiqi Hou and Qi Hao and Jichao Qiao",

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year = "2021",

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T1 - Deformation-induced microstructural heterogeneity and rejuvenation in a Zr-based bulk metallic glass

AU - Zhang, Lianshun

AU - Wang, Tuo

AU - Hou, Qiqi

AU - Hao, Qi

AU - Qiao, Jichao

PY - 2021/12/15

Y1 - 2021/12/15

N2 - Phase separation has been observed in the glassy matrix of (Zr62.5Cu22.5Fe5Al10)94Nb6 bulk metallic glass (BMG) when it has been performed by three-point bending. Cu-rich and Zr, Fe-rich zones have been found in the deformed BMG. The intensity of β-relaxation and the free volume are increased after the deforming process. The deformed BMG presents a work-hardening like behavior and it has a larger compressive plasticity than the undeformed BMG, which is attributed to the microstructural heterogeneity and rejuvenation by the deformation.

AB - Phase separation has been observed in the glassy matrix of (Zr62.5Cu22.5Fe5Al10)94Nb6 bulk metallic glass (BMG) when it has been performed by three-point bending. Cu-rich and Zr, Fe-rich zones have been found in the deformed BMG. The intensity of β-relaxation and the free volume are increased after the deforming process. The deformed BMG presents a work-hardening like behavior and it has a larger compressive plasticity than the undeformed BMG, which is attributed to the microstructural heterogeneity and rejuvenation by the deformation.

KW - Bulk metallic glass

KW - Deformation

KW - Phase separation

KW - Structural heterogeneity

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DO - 10.1016/j.jnoncrysol.2021.121148

M3 - 文章

AN - SCOPUS:85114009028

SN - 0022-3093

VL - 574

JO - Journal of Non-Crystalline Solids

JF - Journal of Non-Crystalline Solids

M1 - 121148

ER -

Deformation-induced microstructural heterogeneity and rejuvenation in a Zr-based bulk metallic glass

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Keywords

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