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Yielding transition under oscillatory shear in metallic glasses |
| Nannan Ren(任楠楠)1,†, Tiantian Meng(孟天天)1, Hui Huang(黄慧)1, Qunshuang Ma(马群双)1,2,á, Jun Fang(房军)3, Qin Li(李勤)3, and Weihuo Li(李维火)1 |
1 School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243032, China;
2 Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials (Anhui University of Technology), Ministry of Education, Maanshan 243002, China;
3 Hohhot Colin Thermal Power Co., Ltd., Hohhot 010030, Chin |
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Abstract The yielding transition of amorphous solids remains a fundamental yet poorly understood issue in materials physics. In this work, we employ oscillatory shear to probe the yielding transition in metallic glasses (MGs) with various thermal histories. We identify three distinct deformation regimes depending on the applied strain amplitudes. Below the yield strain $\gamma_{y}$, the response is elastic and accompanied by aging, through reversible atomic rearrangements that preserve the material's initial memory of thermal history. Slightly above $\gamma_{y}$, the system undergoes a sharp transition during oscillatory cycles, indicated by a sudden rise in potential energy and non-affine displacement, along with the emergence of a shear band. Well above $\gamma_{y}$, plastic deformation dominates, driving samples of various initial stability toward a common steady state, while thermal histories are erased by irreversible rearrangements and shear band formation. These findings advance the understanding of failure mechanisms in MGs and shed light on tuning their mechanical performance in industrial applications involving cyclic loading.
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Received: 15 October 2025
Revised: 17 November 2025
Accepted manuscript online: 15 December 2025
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PACS:
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61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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64.70.pe
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(Metallic glasses)
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62.20.fg
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(Shape-memory effect; yield stress; superelasticity)
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62.20.fq
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(Plasticity and superplasticity)
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| Fund: This project was supported by the National Natural Science Foundation of China (Grant Nos. 52201169 and 52575352) and the Key Research & Development Plan of Anhui Province (Grant No. 2022a05020016). |
Corresponding Authors:
Nannan Ren, Qunshuang Ma
E-mail: nnren@ahut.edu.cn;qunsma@ahut.edu.cn
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Cite this article:
Nannan Ren(任楠楠), Tiantian Meng(孟天天), Hui Huang(黄慧), Qunshuang Ma(马群双), Jun Fang(房军), Qin Li(李勤), and Weihuo Li(李维火) Yielding transition under oscillatory shear in metallic glasses 2026 Chin. Phys. B 35 016103
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