Link between shear modulus and enthalpy changes of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass

Y. J. Duan; J. C. Qiao; D. Crespo; E. V. Goncharova; A. S. Makarov; G. V. Afonin; V. A. Khonik

doi:10.1016/j.jallcom.2020.154564

Link between shear modulus and enthalpy changes of Ti_16.7Zr_16.7Hf_16.7Cu_16.7Ni_16.7Be_16.7 high entropy bulk metallic glass

Y. J. Duan, J. C. Qiao, D. Crespo, E. V. Goncharova, A. S. Makarov, G. V. Afonin, V. A. Khonik

School of Mechanics,Civil Engineering and Architecture

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

14 Scopus citations

Abstract

Mechanical and thermal properties of materials are intricately linked. Particularly, this fully applies to metallic glasses. In this work, we study shear modulus behavior and heat effects occurring upon heating up of Ti_16.7Zr_16.7Hf_16.7Cu_16.7Ni_16.7Be_16.7 high entropy bulk metallic glass up to the full crystallization. In the framework of the Interstitialcy theory, we show that shear modulus relaxation data can be applied to quantitatively predict exo- and endothermal effects related to structural relaxation, glass transition and crystallization of this high entropy metallic glass. This fact suggests that the underlying physical mechanism responsible for this link can be conditioned by the relaxation of the system of structural defects, which by their properties are similar to dumbbell interstitials in metals.

Original language	English
Article number	154564
Journal	Journal of Alloys and Compounds
Volume	830
DOIs	https://doi.org/10.1016/j.jallcom.2020.154564
State	Published - 25 Jul 2020

Keywords

Heat effects
High entropy metallic glass
Interstitialcy theory
Relaxation
Shear modulus

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10.1016/j.jallcom.2020.154564

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@article{32701bc00fe14499839ec5879010ec93,

title = "Link between shear modulus and enthalpy changes of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass",

abstract = "Mechanical and thermal properties of materials are intricately linked. Particularly, this fully applies to metallic glasses. In this work, we study shear modulus behavior and heat effects occurring upon heating up of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass up to the full crystallization. In the framework of the Interstitialcy theory, we show that shear modulus relaxation data can be applied to quantitatively predict exo- and endothermal effects related to structural relaxation, glass transition and crystallization of this high entropy metallic glass. This fact suggests that the underlying physical mechanism responsible for this link can be conditioned by the relaxation of the system of structural defects, which by their properties are similar to dumbbell interstitials in metals.",

keywords = "Heat effects, High entropy metallic glass, Interstitialcy theory, Relaxation, Shear modulus",

author = "Duan, {Y. J.} and Qiao, {J. C.} and D. Crespo and Goncharova, {E. V.} and Makarov, {A. S.} and Afonin, {G. V.} and Khonik, {V. A.}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = jul,

day = "25",

doi = "10.1016/j.jallcom.2020.154564",

language = "英语",

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journal = "Journal of Alloys and Compounds",

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T1 - Link between shear modulus and enthalpy changes of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass

AU - Duan, Y. J.

AU - Qiao, J. C.

AU - Crespo, D.

AU - Goncharova, E. V.

AU - Makarov, A. S.

AU - Afonin, G. V.

AU - Khonik, V. A.

PY - 2020/7/25

Y1 - 2020/7/25

N2 - Mechanical and thermal properties of materials are intricately linked. Particularly, this fully applies to metallic glasses. In this work, we study shear modulus behavior and heat effects occurring upon heating up of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass up to the full crystallization. In the framework of the Interstitialcy theory, we show that shear modulus relaxation data can be applied to quantitatively predict exo- and endothermal effects related to structural relaxation, glass transition and crystallization of this high entropy metallic glass. This fact suggests that the underlying physical mechanism responsible for this link can be conditioned by the relaxation of the system of structural defects, which by their properties are similar to dumbbell interstitials in metals.

AB - Mechanical and thermal properties of materials are intricately linked. Particularly, this fully applies to metallic glasses. In this work, we study shear modulus behavior and heat effects occurring upon heating up of Ti16.7Zr16.7Hf16.7Cu16.7Ni16.7Be16.7 high entropy bulk metallic glass up to the full crystallization. In the framework of the Interstitialcy theory, we show that shear modulus relaxation data can be applied to quantitatively predict exo- and endothermal effects related to structural relaxation, glass transition and crystallization of this high entropy metallic glass. This fact suggests that the underlying physical mechanism responsible for this link can be conditioned by the relaxation of the system of structural defects, which by their properties are similar to dumbbell interstitials in metals.

KW - Heat effects

KW - High entropy metallic glass

KW - Interstitialcy theory

KW - Relaxation

KW - Shear modulus

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DO - 10.1016/j.jallcom.2020.154564

M3 - 文章

AN - SCOPUS:85081285448

SN - 0925-8388

VL - 830

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 154564

ER -

Link between shear modulus and enthalpy changes of Ti_16.7Zr_16.7Hf_16.7Cu_16.7Ni_16.7Be_16.7 high entropy bulk metallic glass

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Keywords

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