Inelastic deformation of metallic glasses under dynamic cyclic loading

Y. J. Duan; J. C. Qiao; T. Wada; H. Kato; Y. J. Wang; E. Pineda; D. Crespo

doi:10.1016/j.scriptamat.2020.113675

Inelastic deformation of metallic glasses under dynamic cyclic loading

Y. J. Duan
, J. C. Qiao
, T. Wada
, H. Kato
, Y. J. Wang
, E. Pineda
, D. Crespo

School of Mechanics,Civil Engineering and Architecture

Northwestern Polytechnical University Xian
Polytechnic University of Catalonia
Institute for Materials Research, Tohoku University
Chinese Academy of Sciences
University of Chinese Academy of Sciences

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

13 Scopus citations

Abstract

Dynamic mechanical analysis was performed in two metallic glasses that show markedly distinct β relaxation features. The confined flow defects of free-volume zones and the inelastic deformation behavior result into a significant mechanical hysteresis loop in dynamic cyclic loadings, which is described with a viscoelastic model. Annealing below the glass transition temperature T_g decreases the concentration of free-volume zones. The understanding of the inelastic deformation, which is related to free-volume zones, is critical and may provide a new avenue into the mechanical properties’ improvement of high entropy metallic glasses.

Original language	English
Article number	113675
Journal	Scripta Materialia
Volume	194
DOIs	https://doi.org/10.1016/j.scriptamat.2020.113675
State	Published - 15 Mar 2021

Keywords

Flow defects
Free-volume zones
High-entropy metallic glass
Inelastic deformation

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10.1016/j.scriptamat.2020.113675

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title = "Inelastic deformation of metallic glasses under dynamic cyclic loading",

abstract = "Dynamic mechanical analysis was performed in two metallic glasses that show markedly distinct β relaxation features. The confined flow defects of free-volume zones and the inelastic deformation behavior result into a significant mechanical hysteresis loop in dynamic cyclic loadings, which is described with a viscoelastic model. Annealing below the glass transition temperature Tg decreases the concentration of free-volume zones. The understanding of the inelastic deformation, which is related to free-volume zones, is critical and may provide a new avenue into the mechanical properties{\textquoteright} improvement of high entropy metallic glasses.",

keywords = "Flow defects, Free-volume zones, High-entropy metallic glass, Inelastic deformation",

author = "Duan, \{Y. J.\} and Qiao, \{J. C.\} and T. Wada and H. Kato and Wang, \{Y. J.\} and E. Pineda and D. Crespo",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2021",

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doi = "10.1016/j.scriptamat.2020.113675",

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T1 - Inelastic deformation of metallic glasses under dynamic cyclic loading

AU - Duan, Y. J.

AU - Qiao, J. C.

AU - Wada, T.

AU - Kato, H.

AU - Wang, Y. J.

AU - Pineda, E.

AU - Crespo, D.

PY - 2021/3/15

Y1 - 2021/3/15

N2 - Dynamic mechanical analysis was performed in two metallic glasses that show markedly distinct β relaxation features. The confined flow defects of free-volume zones and the inelastic deformation behavior result into a significant mechanical hysteresis loop in dynamic cyclic loadings, which is described with a viscoelastic model. Annealing below the glass transition temperature Tg decreases the concentration of free-volume zones. The understanding of the inelastic deformation, which is related to free-volume zones, is critical and may provide a new avenue into the mechanical properties’ improvement of high entropy metallic glasses.

AB - Dynamic mechanical analysis was performed in two metallic glasses that show markedly distinct β relaxation features. The confined flow defects of free-volume zones and the inelastic deformation behavior result into a significant mechanical hysteresis loop in dynamic cyclic loadings, which is described with a viscoelastic model. Annealing below the glass transition temperature Tg decreases the concentration of free-volume zones. The understanding of the inelastic deformation, which is related to free-volume zones, is critical and may provide a new avenue into the mechanical properties’ improvement of high entropy metallic glasses.

KW - Flow defects

KW - Free-volume zones

KW - High-entropy metallic glass

KW - Inelastic deformation

UR - https://www.scopus.com/pages/publications/85097884386

U2 - 10.1016/j.scriptamat.2020.113675

DO - 10.1016/j.scriptamat.2020.113675

M3 - 文章

AN - SCOPUS:85097884386

SN - 1359-6462

VL - 194

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 113675

ER -

Inelastic deformation of metallic glasses under dynamic cyclic loading

Abstract

Keywords

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