Relationship between the shear modulus and defect-induced structural relaxation of high-entropy metallic glasses

A. S. Makarov; E. V. Goncharova; J. C. Qiao; R. A. Konchakov; V. A. Khonik

doi:10.1016/j.ssc.2025.116008

Relationship between the shear modulus and defect-induced structural relaxation of high-entropy metallic glasses

A. S. Makarov
, E. V. Goncharova
, J. C. Qiao
, R. A. Konchakov
, V. A. Khonik

力学与土木建筑学院

Voronezh State Pedagogical University

科研成果: 期刊稿件 › 文章 › 同行评审

摘要

We performed high-precision measurements of the high-frequency (0.5 MHz) shear modulus of seven high-entropy metallic glasses (HEMGs) (mixing entropy 1.42≤ΔS_mix/R≤1.77) in the initial, relaxed and crystalline states in a wide temperature range. It is shown that the shear modulus of HEMGs is intrinsically related with the evolution of the system of defects responsible for structural relaxation. In the absence of structural relaxation, temperature coefficient of the shear modulus of glass equals to that of the counterpart crystal. All found regularities are governed by a single equation, which establishes a relationship between the shear moduli of glass and crystal.

源语言	英语
文章编号	116008
期刊	Solid State Communications
卷	404
DOI	https://doi.org/10.1016/j.ssc.2025.116008
出版状态	已出版 - 1 10月 2025

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10.1016/j.ssc.2025.116008

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title = "Relationship between the shear modulus and defect-induced structural relaxation of high-entropy metallic glasses",

abstract = "We performed high-precision measurements of the high-frequency (0.5 MHz) shear modulus of seven high-entropy metallic glasses (HEMGs) (mixing entropy 1.42≤ΔSmix/R≤1.77) in the initial, relaxed and crystalline states in a wide temperature range. It is shown that the shear modulus of HEMGs is intrinsically related with the evolution of the system of defects responsible for structural relaxation. In the absence of structural relaxation, temperature coefficient of the shear modulus of glass equals to that of the counterpart crystal. All found regularities are governed by a single equation, which establishes a relationship between the shear moduli of glass and crystal.",

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author = "Makarov, \{A. S.\} and Goncharova, \{E. V.\} and Qiao, \{J. C.\} and Konchakov, \{R. A.\} and Khonik, \{V. A.\}",

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doi = "10.1016/j.ssc.2025.116008",

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T1 - Relationship between the shear modulus and defect-induced structural relaxation of high-entropy metallic glasses

AU - Makarov, A. S.

AU - Goncharova, E. V.

AU - Qiao, J. C.

AU - Konchakov, R. A.

AU - Khonik, V. A.

PY - 2025/10/1

Y1 - 2025/10/1

N2 - We performed high-precision measurements of the high-frequency (0.5 MHz) shear modulus of seven high-entropy metallic glasses (HEMGs) (mixing entropy 1.42≤ΔSmix/R≤1.77) in the initial, relaxed and crystalline states in a wide temperature range. It is shown that the shear modulus of HEMGs is intrinsically related with the evolution of the system of defects responsible for structural relaxation. In the absence of structural relaxation, temperature coefficient of the shear modulus of glass equals to that of the counterpart crystal. All found regularities are governed by a single equation, which establishes a relationship between the shear moduli of glass and crystal.

AB - We performed high-precision measurements of the high-frequency (0.5 MHz) shear modulus of seven high-entropy metallic glasses (HEMGs) (mixing entropy 1.42≤ΔSmix/R≤1.77) in the initial, relaxed and crystalline states in a wide temperature range. It is shown that the shear modulus of HEMGs is intrinsically related with the evolution of the system of defects responsible for structural relaxation. In the absence of structural relaxation, temperature coefficient of the shear modulus of glass equals to that of the counterpart crystal. All found regularities are governed by a single equation, which establishes a relationship between the shear moduli of glass and crystal.

KW - Defects

KW - High-entropy metallic glasses

KW - Relaxation

KW - Shear modulus

UR - https://www.scopus.com/pages/publications/105007346547

U2 - 10.1016/j.ssc.2025.116008

DO - 10.1016/j.ssc.2025.116008

M3 - 文章

AN - SCOPUS:105007346547

SN - 0038-1098

VL - 404

JO - Solid State Communications

JF - Solid State Communications

M1 - 116008

ER -

Relationship between the shear modulus and defect-induced structural relaxation of high-entropy metallic glasses

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