Rejuvenation by triaxial compression in a brittle La-based bulk metallic glass

K. W. Shao; W. H. Zhou; K. Gao; X. G. Zhu; P. Jia; Y. Li

doi:10.1016/j.matlet.2022.132336

Rejuvenation by triaxial compression in a brittle La-based bulk metallic glass

K. W. Shao
, W. H. Zhou
, K. Gao
, X. G. Zhu
, P. Jia^*
, Y. Li

^*Corresponding author for this work

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

1 Scopus citations

Abstract

Rejuvenation was achieved in brittle (La₅₀Ce₅₀)₆₅Co₂₅Al₁₀ bulk metallic glasses (BMGs) by compressing a notched sample. The rejuvenated sample shows low hardness (reduced by 7%), high relaxation enthalpy (increased by 44%) compared with those of as-cast sample. Most importantly, our results show that, in terms of percentage increase in relaxation enthalpy per strain, the rejuvenation ability of La-based BMG is higher than that of Zr-based BMG under plastic deformation. Our findings demonstrated the powerful rejuvenation ability for triaxial compression once again.

Original language	English
Article number	132336
Journal	Materials Letters
Volume	320
DOIs	https://doi.org/10.1016/j.matlet.2022.132336
State	Published - 1 Aug 2022
Externally published	Yes

Keywords

Amorphous materials
Hardness
Rejuvenation
Thermal analysis
Triaxial compression

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10.1016/j.matlet.2022.132336

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title = "Rejuvenation by triaxial compression in a brittle La-based bulk metallic glass",

abstract = "Rejuvenation was achieved in brittle (La50Ce50)65Co25Al10 bulk metallic glasses (BMGs) by compressing a notched sample. The rejuvenated sample shows low hardness (reduced by 7\%), high relaxation enthalpy (increased by 44\%) compared with those of as-cast sample. Most importantly, our results show that, in terms of percentage increase in relaxation enthalpy per strain, the rejuvenation ability of La-based BMG is higher than that of Zr-based BMG under plastic deformation. Our findings demonstrated the powerful rejuvenation ability for triaxial compression once again.",

keywords = "Amorphous materials, Hardness, Rejuvenation, Thermal analysis, Triaxial compression",

author = "Shao, \{K. W.\} and Zhou, \{W. H.\} and K. Gao and Zhu, \{X. G.\} and P. Jia and Y. Li",

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doi = "10.1016/j.matlet.2022.132336",

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T1 - Rejuvenation by triaxial compression in a brittle La-based bulk metallic glass

AU - Shao, K. W.

AU - Zhou, W. H.

AU - Gao, K.

AU - Zhu, X. G.

AU - Jia, P.

AU - Li, Y.

PY - 2022/8/1

Y1 - 2022/8/1

N2 - Rejuvenation was achieved in brittle (La50Ce50)65Co25Al10 bulk metallic glasses (BMGs) by compressing a notched sample. The rejuvenated sample shows low hardness (reduced by 7%), high relaxation enthalpy (increased by 44%) compared with those of as-cast sample. Most importantly, our results show that, in terms of percentage increase in relaxation enthalpy per strain, the rejuvenation ability of La-based BMG is higher than that of Zr-based BMG under plastic deformation. Our findings demonstrated the powerful rejuvenation ability for triaxial compression once again.

AB - Rejuvenation was achieved in brittle (La50Ce50)65Co25Al10 bulk metallic glasses (BMGs) by compressing a notched sample. The rejuvenated sample shows low hardness (reduced by 7%), high relaxation enthalpy (increased by 44%) compared with those of as-cast sample. Most importantly, our results show that, in terms of percentage increase in relaxation enthalpy per strain, the rejuvenation ability of La-based BMG is higher than that of Zr-based BMG under plastic deformation. Our findings demonstrated the powerful rejuvenation ability for triaxial compression once again.

KW - Amorphous materials

KW - Hardness

KW - Rejuvenation

KW - Thermal analysis

KW - Triaxial compression

UR - https://www.scopus.com/pages/publications/85129281782

U2 - 10.1016/j.matlet.2022.132336

DO - 10.1016/j.matlet.2022.132336

M3 - 文章

AN - SCOPUS:85129281782

SN - 0167-577X

VL - 320

JO - Materials Letters

JF - Materials Letters

M1 - 132336

ER -

Rejuvenation by triaxial compression in a brittle La-based bulk metallic glass

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Keywords

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