Effect of natural aging on relaxation behavior and mechanical property of a La-based bulk metallic glass

Xiao Cui; Ji Chao Qiao; Yu Bai Ma; Jin Jing Li; Xiao Jun Meng; Fang qiu Zu

doi:10.1016/j.intermet.2021.107365

Effect of natural aging on relaxation behavior and mechanical property of a La-based bulk metallic glass

Xiao Cui, Ji Chao Qiao, Yu Bai Ma, Jin Jing Li, Xiao Jun Meng, Fang qiu Zu

School of Mechanics,Civil Engineering and Architecture

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

3 Scopus citations

Abstract

Natural aging, which is the spontaneous temporal evolution of meta-stable systems, is a great task in amorphous materials. In this work, La₆₂Al₁₄(Cu_5/6Ag_1/6)₁₄(Ni_1/2Co_1/2)₁₀ BMGs with the same master alloy was prepared 8 years ago and at present. The effect of natural aging on the relaxation behavior and mechanical property of the La-based BMG was studied. Experimental results based on dynamic mechanical analysis and differential scanning calorimetry showed that natural aging for 8 years caused the atomic configuration to relax from a meta-stable state to a relatively more stable state, and the crystallization characteristic was also affected by natural aging. The results of compression testing indicated that the plasticity of the La-based BMG would be reduced, as a result of structural relaxation caused by natural aging.

Original language	English
Article number	107365
Journal	Intermetallics
Volume	139
DOIs	https://doi.org/10.1016/j.intermet.2021.107365
State	Published - Dec 2021

Keywords

Bulk metallic glass
Mechanical property
Natural aging
Relaxation behavior

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10.1016/j.intermet.2021.107365

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title = "Effect of natural aging on relaxation behavior and mechanical property of a La-based bulk metallic glass",

abstract = "Natural aging, which is the spontaneous temporal evolution of meta-stable systems, is a great task in amorphous materials. In this work, La62Al14(Cu5/6Ag1/6)14(Ni1/2Co1/2)10 BMGs with the same master alloy was prepared 8 years ago and at present. The effect of natural aging on the relaxation behavior and mechanical property of the La-based BMG was studied. Experimental results based on dynamic mechanical analysis and differential scanning calorimetry showed that natural aging for 8 years caused the atomic configuration to relax from a meta-stable state to a relatively more stable state, and the crystallization characteristic was also affected by natural aging. The results of compression testing indicated that the plasticity of the La-based BMG would be reduced, as a result of structural relaxation caused by natural aging.",

keywords = "Bulk metallic glass, Mechanical property, Natural aging, Relaxation behavior",

author = "Xiao Cui and Qiao, {Ji Chao} and Ma, {Yu Bai} and Li, {Jin Jing} and Meng, {Xiao Jun} and Zu, {Fang qiu}",

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doi = "10.1016/j.intermet.2021.107365",

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volume = "139",

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T1 - Effect of natural aging on relaxation behavior and mechanical property of a La-based bulk metallic glass

AU - Cui, Xiao

AU - Qiao, Ji Chao

AU - Ma, Yu Bai

AU - Li, Jin Jing

AU - Meng, Xiao Jun

AU - Zu, Fang qiu

PY - 2021/12

Y1 - 2021/12

N2 - Natural aging, which is the spontaneous temporal evolution of meta-stable systems, is a great task in amorphous materials. In this work, La62Al14(Cu5/6Ag1/6)14(Ni1/2Co1/2)10 BMGs with the same master alloy was prepared 8 years ago and at present. The effect of natural aging on the relaxation behavior and mechanical property of the La-based BMG was studied. Experimental results based on dynamic mechanical analysis and differential scanning calorimetry showed that natural aging for 8 years caused the atomic configuration to relax from a meta-stable state to a relatively more stable state, and the crystallization characteristic was also affected by natural aging. The results of compression testing indicated that the plasticity of the La-based BMG would be reduced, as a result of structural relaxation caused by natural aging.

AB - Natural aging, which is the spontaneous temporal evolution of meta-stable systems, is a great task in amorphous materials. In this work, La62Al14(Cu5/6Ag1/6)14(Ni1/2Co1/2)10 BMGs with the same master alloy was prepared 8 years ago and at present. The effect of natural aging on the relaxation behavior and mechanical property of the La-based BMG was studied. Experimental results based on dynamic mechanical analysis and differential scanning calorimetry showed that natural aging for 8 years caused the atomic configuration to relax from a meta-stable state to a relatively more stable state, and the crystallization characteristic was also affected by natural aging. The results of compression testing indicated that the plasticity of the La-based BMG would be reduced, as a result of structural relaxation caused by natural aging.

KW - Bulk metallic glass

KW - Mechanical property

KW - Natural aging

KW - Relaxation behavior

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DO - 10.1016/j.intermet.2021.107365

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Effect of natural aging on relaxation behavior and mechanical property of a La-based bulk metallic glass

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