Tailoring the mechanical properties of bulk metallic glasses via cooling from the supercooled liquid region

Lang Ting Zhang; Ya Juan Duan; Yun Jiang Wang; Yong Yang; Ji Chao Qiao

doi:10.1007/s11431-022-2237-5

Tailoring the mechanical properties of bulk metallic glasses via cooling from the supercooled liquid region

Lang Ting Zhang, Ya Juan Duan, Yun Jiang Wang, Yong Yang, Ji Chao Qiao

School of Mechanics,Civil Engineering and Architecture

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

4 Scopus citations

Abstract

Structural rejuvenation is vital and attractive for modulating the energetic state and structural heterogeneity of bulk metallic glasses (BMGs). In this paper, we show that cooling a BMG from a supercooled liquid region at laboratory rates can reverse the relaxation enthalpy lost during the preceding structural relaxation. Increasing the cooling rate is beneficial for enhancing atomic mobility and dynamic mechanical relaxation intensity. Therefore, this rejuvenation methodology promotes tailoring the mechanical properties of BMGs and provides a comprehensive understanding of the rejuvenation mechanism.

Original language	English
Pages (from-to)	173-180
Number of pages	8
Journal	Science China Technological Sciences
Volume	66
Issue number	1
DOIs	https://doi.org/10.1007/s11431-022-2237-5
State	Published - Jan 2023

Keywords

bulk metallic glass
mechanical relaxation
structural heterogeneity
supercooled liquid region
thermal rejuvenation

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10.1007/s11431-022-2237-5

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title = "Tailoring the mechanical properties of bulk metallic glasses via cooling from the supercooled liquid region",

abstract = "Structural rejuvenation is vital and attractive for modulating the energetic state and structural heterogeneity of bulk metallic glasses (BMGs). In this paper, we show that cooling a BMG from a supercooled liquid region at laboratory rates can reverse the relaxation enthalpy lost during the preceding structural relaxation. Increasing the cooling rate is beneficial for enhancing atomic mobility and dynamic mechanical relaxation intensity. Therefore, this rejuvenation methodology promotes tailoring the mechanical properties of BMGs and provides a comprehensive understanding of the rejuvenation mechanism.",

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author = "Zhang, {Lang Ting} and Duan, {Ya Juan} and Wang, {Yun Jiang} and Yong Yang and Qiao, {Ji Chao}",

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AU - Zhang, Lang Ting

AU - Duan, Ya Juan

AU - Wang, Yun Jiang

AU - Yang, Yong

AU - Qiao, Ji Chao

PY - 2023/1

Y1 - 2023/1

N2 - Structural rejuvenation is vital and attractive for modulating the energetic state and structural heterogeneity of bulk metallic glasses (BMGs). In this paper, we show that cooling a BMG from a supercooled liquid region at laboratory rates can reverse the relaxation enthalpy lost during the preceding structural relaxation. Increasing the cooling rate is beneficial for enhancing atomic mobility and dynamic mechanical relaxation intensity. Therefore, this rejuvenation methodology promotes tailoring the mechanical properties of BMGs and provides a comprehensive understanding of the rejuvenation mechanism.

AB - Structural rejuvenation is vital and attractive for modulating the energetic state and structural heterogeneity of bulk metallic glasses (BMGs). In this paper, we show that cooling a BMG from a supercooled liquid region at laboratory rates can reverse the relaxation enthalpy lost during the preceding structural relaxation. Increasing the cooling rate is beneficial for enhancing atomic mobility and dynamic mechanical relaxation intensity. Therefore, this rejuvenation methodology promotes tailoring the mechanical properties of BMGs and provides a comprehensive understanding of the rejuvenation mechanism.

KW - bulk metallic glass

KW - mechanical relaxation

KW - structural heterogeneity

KW - supercooled liquid region

KW - thermal rejuvenation

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ER -

Tailoring the mechanical properties of bulk metallic glasses via cooling from the supercooled liquid region

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