Decoupling elasticity, anelasticity, and plasticity in static and dynamic stress relaxation of metallic glasses
文献类型：期刊论文
| 作者 | Hao, Qi2,3; Liang, Shuyi2; Xing, Guanghui2; Pineda, Eloi3; Fusco, Claudio4; Chazeau, Laurent4; Pelletier, JeanMarc4; Wang YJ(王云江)5,6; Yang, Yong1,7; Qiao, Jichao2 |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2025-08-19 |
| 卷号 | 68期号:9页码:13 |
| 关键词 | metallic glass deformation mechanism shear transformation zone anelasticity |
| ISSN号 | 1674-7321 |
| DOI | 10.1007/s11431-025-2970-4 |
| 通讯作者 | Qiao, Jichao(qjczy@nwpu.edu.cn) |
| 英文摘要 | The stretched exponent Kohlrausch-Williams-Watts (KWW) equation, which is to some extent equivalent to the generalized Maxwell viscoelastic model, is widely employed for analyzing relaxation dynamics and nonelastic deformation of amorphous solids. However, it cannot reveal the underlying physical mechanisms of anelasticity. In this study, based on the potential atomic mechanisms of amorphous solids within a strain field and the traditional viscoelastic model, we introduced a physical-mechanical model involving hierarchically constrained atomic motion around defect sites. This model deduces that fast atoms move first, subsequently facilitating more complex atomic rearrangements under thermomechanical loading. These atom movement mechanisms are involved in the evolution of deformation units, such as shear transformation zones (STZs). Initially, anelasticity is associated with isolated STZs because of back stress arising from the matrix. Subsequently, the percolation of STZ by the motion of atoms owing to STZ interactions leads to irreversible deformation. The model was validated by describing the elastic, anelastic, and plastic components of stress relaxation in a La60Ni15Al25 metallic glass. Furthermore, as STZs are connected to alpha and beta relaxation processes, the model can be used for parameter description and component analysis of dynamic stress relaxation. The current study supplements the traditional flow defect model, providing insights into the deformation mechanisms of metallic glasses from the perspective of viscoelastic mechanics and their correlation with dynamic relaxation processes. |
| 分类号 | 二类/Q1 |
| WOS关键词 | DEFORMATION ; HETEROGENEITY ; DEPENDENCE ; DEFECTS ; SOLIDS ; MODELS ; FLOW |
| 资助项目 | National Natural Science Foundation of China[12472069] ; National Natural Science Foundation of China[52271153] ; National Natural Science Foundation of China[12072344] ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province[2021JC-12] ; Natural Science Foundation of Shaanxi Province[2025GH-YBXM046] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences, Research Grant Council (RGC) ; Hong Kong government (SAR) through the General Research Fund (GRF)[CityU11200719] ; Hong Kong government (SAR) through the General Research Fund (GRF)[CityU11213118] ; Hong Kong government (SAR) through the General Research Fund (GRF)[PID2023-146623NB-I00] ; Hong Kong government (SAR) through the General Research Fund (GRF)[CEX2023-001300-M] ; Hong Kong government (SAR) through the General Research Fund (GRF)[MICIU/AEI/10.13039/501100011033] ; Hong Kong government (SAR) through the General Research Fund (GRF)[2021-SGR-00343] ; Generalitat de Catalunya/AGAUR |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001556220400003 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Basic Research Plan for Distinguished Young Scholars in Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; Youth Innovation Promotion Association of the Chinese Academy of Sciences, Research Grant Council (RGC) ; Hong Kong government (SAR) through the General Research Fund (GRF) ; Generalitat de Catalunya/AGAUR |
| 其他责任者 | Qiao, Jichao |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103804]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.City Univ Hong Kong, Coll Engn, Dept Mech Engn, Hong Kong 999077, Peoples R China; 2.Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072, Peoples R China; 3.Univ Politecn Cataluna, Inst Energy Technol, Ctr Res Multiscale Sci & Engn, Dept Phys, Barcelona 08019, Spain; 4.Univ Lyon, Univ Claude Bernard Lyon 1, INSA Lyon, CNRS,MATEIS,UMR5510, F-69621 Villeurbanne, France; 5.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 6.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 7.City Univ Hong Kong, Coll Engn, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hao, Qi,Liang, Shuyi,Xing, Guanghui,et al. Decoupling elasticity, anelasticity, and plasticity in static and dynamic stress relaxation of metallic glasses[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2025,68(9):13. |
| APA | Hao, Qi.,Liang, Shuyi.,Xing, Guanghui.,Pineda, Eloi.,Fusco, Claudio.,...&Qiao, Jichao.(2025).Decoupling elasticity, anelasticity, and plasticity in static and dynamic stress relaxation of metallic glasses.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,68(9),13. |
| MLA | Hao, Qi,et al."Decoupling elasticity, anelasticity, and plasticity in static and dynamic stress relaxation of metallic glasses".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 68.9(2025):13. |
入库方式： OAI收割
来源：力学研究所
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