| Stress relaxation in high-entropy Pd20Pt20Cu20Ni20P20 metallic glass: Experiments, modeling and theory | |
Duan, YJ1,2; Qiao, JC1; Wada, T3; Kato, H3; Pineda, E2; Crespo, D2; Wang YJ(王云江)4,5
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| Corresponding Author | Qiao, J. C.([email protected]) ; Wang, Yun-Jiang([email protected]) |
| Source Publication | MECHANICS OF MATERIALS
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| 2021-09-01 | |
| Volume | 160Pages:10 |
| ISSN | 0167-6636 |
| Abstract | The viscoelastic properties of Pd20Pt20Cu20Ni20P20 high-entropy metallic glass were probed by dynamic mechanical spectroscopy and stress relaxation. The experimental evolution of stress can be characterized by the empirical Kohlrausch-Williams-Watts function during the tensile stress relaxation measurement. We develop a linear relaxation model able to describe the whole process of stress relaxation in a wide range of temperatures. The linear relaxation model takes into account the microstructural heterogeneity of the glass, and thus its dynamical heterogeneity, so that the thermal effect and stress-driven process are physically decoupled. The activation energy spectra at various temperatures reveal the changes of the deformation units during stress relaxation, which is the result of the interplay between stress and temperature. This study decomposes the widespread hierarchical dynamics due to structural heterogeneity which accommodates the viscoelastic deformation of the high-entropy metallic glasses. |
| Keyword | High-entropy metallic glass Stress relaxation Linear relaxation model Structural heterogeneity Viscoelastic deformation |
| DOI | 10.1016/j.mechmat.2021.103959 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000683807000003 |
| WOS Keyword | STRUCTURAL RELAXATION ; MECHANICAL RELAXATIONS ; INELASTIC DEFORMATION ; AMORPHOUS PD40NI40P20 ; SECONDARY RELAXATION ; BETA-RELAXATION ; ENERGY SPECTRA ; BULK ; BEHAVIOR ; TRANSITION |
| WOS Research Area | Materials Science ; Mechanics |
| WOS Subject | Materials Science, Multidisciplinary ; Mechanics |
| Funding Project | NSFC[12072344] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[2021JC12] ; MICINN[FIS2017-82625-P] ; Generalitat de Catalunya[2017SGR0042] ; Innovation Foundation for Doctor Disserta-tion of Northwestern Polytechnical University[CX202031] ; China Scholarship Council (CSC)[202006290092] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017025] |
| Funding Organization | NSFC ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province ; MICINN ; Generalitat de Catalunya ; Innovation Foundation for Doctor Disserta-tion of Northwestern Polytechnical University ; China Scholarship Council (CSC) ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
| Classification | 二类 |
| Ranking | 1 |
| Contributor | Qiao, J. C. ; Wang, Yun-Jiang |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/87240 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China; 2.Univ Politecn Cataluna, Inst Energy Technol, Dept Phys, Barcelona 08019, Spain; 3.Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan; 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 5.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China |
| Recommended Citation GB/T 7714 | Duan, YJ,Qiao, JC,Wada, T,et al. Stress relaxation in high-entropy Pd20Pt20Cu20Ni20P20 metallic glass: Experiments, modeling and theory[J]. MECHANICS OF MATERIALS,2021,160:10.Rp_Au:Qiao, J. C., Wang, Yun-Jiang |
| APA | Duan, YJ.,Qiao, JC.,Wada, T.,Kato, H.,Pineda, E.,...&王云江.(2021).Stress relaxation in high-entropy Pd20Pt20Cu20Ni20P20 metallic glass: Experiments, modeling and theory.MECHANICS OF MATERIALS,160,10. |
| MLA | Duan, YJ,et al."Stress relaxation in high-entropy Pd20Pt20Cu20Ni20P20 metallic glass: Experiments, modeling and theory".MECHANICS OF MATERIALS 160(2021):10. |
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| Jp2021F364.pdf（10218KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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