Pronounced softening of a Zr-based metallic glass in micro annular gap flow

Zu Li; Meng Zhang; Jing Wang; Ning Li; Lin Liu

doi:10.1080/21663831.2021.2017044

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Pronounced softening of a Zr-based metallic glass in micro annular gap flow

Original Reports | 更新时间：2026-08-19

- Pronounced softening of a Zr-based metallic glass in micro annular gap flow
- Materials Research Letters Vol. 10, Issue 2, Pages: 62-69(2022)
- 作者机构：
  
  1. a State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan People’s Republic of China
  2. b School of Physics and Materials Science Guangzhou University
  3. c Institute of Advanced Wear & Corrosion Resistant and Functional Materials Jinan University
  4. d Department of Orthopaedics Union Hospital Tongji Medical College Huazhong University of Science and Technology
  5. a State Key Laboratory of Material Processing and Die & Mould Technology School of Materials Science and Engineering
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2021.2017044
  CLC：
- Online First：17 January 2022，
  
  Published：2022
- 稿件说明：
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Zu Li, Meng Zhang, Jing Wang, et al. Pronounced softening of a Zr-based metallic glass in micro annular gap flow[J]. Materials Research Letters, 2022, 10(2): 62-69.
DOI：

Zu Li, Meng Zhang, Jing Wang, et al. Pronounced softening of a Zr-based metallic glass in micro annular gap flow[J]. Materials Research Letters, 2022, 10(2): 62-69. DOI： 10.1080/21663831.2021.2017044.

摘要

Abstract

While shear softening is widely acknowledged inflow of metallic glasses (MGs)

the underlying structural origin remains obscure. Here a Zr

26.75

8.25

MG was squeezed into annular gaps of an exterior diameter of 300 µm and widths of 5∼150 µm by thermoplastic embossing. Pronounced softening was detected for MG flowing in gaps smaller than 50 µm

showing a hardness value ∼1/30 of MG outside the gap. Nanofoam-like feature was observed in the atomic structure of softened MG. This is attributed to the increased shear in MG flowing in smaller gaps and proposed to be the main cause for the pronounced softening.

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Related Author

Jian Wang

Haifeng Wang

Yidi Shi

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Yin Du

Zhang-Jie Wang

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Related Institution

b Mechanical and Materials Engineering University of Nebraska-Lincoln

a State Key Laboratory of Solidification Processing Center of Advanced Lubrication and Seal Materials Northwestern Polytechnical University

d German Research Centre for Geosciences (GFZ) Helmholtz-Potsdam

b Institute of Materials Physics University of Göttingen Göttingen Germany

c 4th Physical Institute – Solids and Nanostructures University of Göttingen

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