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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
Corresponding AuthorQiao, J. C.(qjczy@nwpu.edu.cn) ; Wang, Yun-Jiang(yjwang@imech.ac.cn)
Source PublicationMECHANICS OF MATERIALS
2021-09-01
Volume160Pages:10
ISSN0167-6636
AbstractThe 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.
KeywordHigh-entropy metallic glass Stress relaxation Linear relaxation model Structural heterogeneity Viscoelastic deformation
DOI10.1016/j.mechmat.2021.103959
Indexed BySCI ; EI
Language英语
WOS IDWOS:000683807000003
WOS KeywordSTRUCTURAL RELAXATION ; MECHANICAL RELAXATIONS ; INELASTIC DEFORMATION ; AMORPHOUS PD40NI40P20 ; SECONDARY RELAXATION ; BETA-RELAXATION ; ENERGY SPECTRA ; BULK ; BEHAVIOR ; TRANSITION
WOS Research AreaMaterials Science ; Mechanics
WOS SubjectMaterials Science, Multidisciplinary ; Mechanics
Funding ProjectNSFC[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 OrganizationNSFC ; 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
Ranking1
ContributorQiao, J. C. ; Wang, Yun-Jiang
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/87240
Collection非线性力学国家重点实验室
Affiliation1.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.
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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