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

Materials Development Division

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

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
Publication status	Published - 2021 Mar 15

Keywords

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

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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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 = "Funding Information: This work is supported by the NSFC (Grant No. 51971178 ), the Fundamental Research Funds for the Central Universities (Grant Nos. 3102019ghxm007 and 3102017JC01003 ), Opening fund of State Key Laboratory of Nonlinear Mechanics (LNM201911) and the Natural Science Foundation of Shaanxi Province (Grant No. 2019JM-344 ). E. Pineda and D. Crespo acknowledge financial support from MICINN (grant FIS2017-82625-P) and Generalitat de Catalunya (grant 2017SGR0042 ). The investigation of Y. J. Duan is sponsored by Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (No. CX202031) and China Scholarship Council (CSC) for the scholarship. Publisher Copyright: {\textcopyright} 2020",

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

language = "English",

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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.

N1 - Funding Information: This work is supported by the NSFC (Grant No. 51971178 ), the Fundamental Research Funds for the Central Universities (Grant Nos. 3102019ghxm007 and 3102017JC01003 ), Opening fund of State Key Laboratory of Nonlinear Mechanics (LNM201911) and the Natural Science Foundation of Shaanxi Province (Grant No. 2019JM-344 ). E. Pineda and D. Crespo acknowledge financial support from MICINN (grant FIS2017-82625-P) and Generalitat de Catalunya (grant 2017SGR0042 ). The investigation of Y. J. Duan is sponsored by Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (No. CX202031) and China Scholarship Council (CSC) for the scholarship. Publisher Copyright: © 2020

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

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SN - 1359-6462

M1 - 113675

ER -

Inelastic deformation of metallic glasses under dynamic cyclic loading

Abstract

Keywords

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