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Decoupling thermal and mechanical effects on metallic glasses creep

文献类型：期刊论文

作者Liang SY4; Zhang LT3; Wang B2; Wang YJ(王云江)1,10; Yang Y8,9; Pineda E7; Qiao JC4,5,6
刊名INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
出版日期2025-09-15
卷号302页码:10
关键词Metallic glasses Creep behavior Thermomechanical coupling and decoupling Stepped isothermal method Activation energy and volume beta relaxation
ISSN号0020-7403
DOI10.1016/j.ijmecsci.2025.110573
通讯作者Wang, B.(wangbing0614@nwpu.edu.cn) ; Qiao, J. C.(qjczy@nwpu.edu.cn)
英文摘要The creep behavior of metallic glasses (MGs) is intricately linked to the microstructural evolution, with atomic movement modes and mechanisms playing a crucial role in determining deformation characteristics. This study innovatively employs the Stepped Isothermal Method (SIM) to investigate the correlation between thermal activation and mechanical stimulus in MGs during creep deformation. By incrementally increasing temperature within a short time, SIM accelerates the creep process. The time-temperature-stress equivalence principle was used to analyze structural relaxation and predicting long-term performance. The experimental results demonstrated that the atomic diffusion rate and strain accumulation during the creep process are closely associated with the beta relaxation process of MGs which is linked to the local motion and rearrangement of atoms. The results of activation energy per unit activation volume as a function of stress and temperature provide a deep understanding of the relationship between thermal activation and mechanical effects during creep deformation. The findings highlight the dominant role of thermal activation and the significant influence of mechanical stimulation. They also establish the relationship between these factors and beta relaxation, shedding light on the underlying mechanisms driving creep in MGs. This work provides novel insights into the fundamental behavior of MGs under thermomechanical treatments. It also introduces a comprehensive methodology for evaluating long-term mechanical properties, advancing the development of high-performance materials for engineering applications.
分类号一类
WOS关键词STEPPED ISOTHERMAL METHOD ; BETA-RELAXATION ; TEMPERATURE-DEPENDENCE ; BEHAVIOR ; GEOSYNTHETICS ; POLYMERS
资助项目Research Grant Council (RGC)[XDB0620103] ; Research Grant Council (RGC)[XDB0510301] ; Hong Kong Government through the General Research Fund (GRF)[CityU11200719] ; Hong Kong Government through the General Research Fund (GRF)[CityU11213118] ; Hong Kong Government through the General Research Fund (GRF)[PID2023-146623NB-I00] ; Hong Kong Government through the General Research Fund (GRF)[CEX2023-001300-M] ; Hong Kong Government through the General Research Fund (GRF)[MICIU/AEI/10.13039/501100011033] ; Hong Kong Government through the General Research Fund (GRF)[2021-SGR-00343] ; Generalitat de Catalunya/AGAUR ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University[CX2024012] ; China Association for Science and Technology (CAST) Youth Talent Support Program-Doctoral Student Special Project
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:001536852300001
资助机构Research Grant Council (RGC) ; Hong Kong Government through the General Research Fund (GRF) ; Generalitat de Catalunya/AGAUR ; Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University ; China Association for Science and Technology (CAST) Youth Talent Support Program-Doctoral Student Special Project
其他责任者Wang B，Qiao JC
源URL[http://dspace.imech.ac.cn/handle/311007/102340]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China;
2.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China;
3.Changan Univ, Sch Sci, Xian 710064, Peoples R China;
4.Northwestern Polytech Univ, Sch Mech & Transportat Engn, Xian 710072, Peoples R China;
5.Northwestern Polytech Univ, State Key Lab Clean & Efficient Turbomachinery Pow, Xian 710072, Peoples R China;
6.Minist Ind & Informat Technol, Key Lab Aircraft Struct Integr, Xian 710072, Peoples R China
7.Univ Politecn Catalunya Barcelona Tech, Inst Energy Technol, Ctr Res Multiscale Sci & Engn, Dept Phys, Barcelona 08019, Spain;
8.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
9.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Kowloon Tong,Kowloon, Tat Chee Ave, Hong Kong, Peoples R China;
10.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
推荐引用方式
GB/T 7714		 Liang SY,Zhang LT,Wang B,et al. Decoupling thermal and mechanical effects on metallic glasses creep[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2025,302:10.
APA Liang SY.,Zhang LT.,Wang B.,王云江.,Yang Y.,...&Qiao JC.(2025).Decoupling thermal and mechanical effects on metallic glasses creep.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,302,10.
MLA Liang SY,et al."Decoupling thermal and mechanical effects on metallic glasses creep".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 302(2025):10.

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来源：力学研究所

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