Twinning-mediated plasticity by a novel multistage twinning mode in an Mg-Al-Gd alloy

Lei Zhao; Min Zha; Yipeng Gao; Kai Guan; Peng Chen; Meng-Na Zhang; Zhen-Ming Hua; Hai-Long Jia; Hui-Yuan Wang

doi:10.1080/21663831.2023.2265411

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Twinning-mediated plasticity by a novel multistage twinning mode in an Mg-Al-Gd alloy

Original Reports | 更新时间：2026-08-19

- Twinning-mediated plasticity by a novel multistage twinning mode in an Mg-Al-Gd alloy
- Materials Research Letters Vol. 11, Issue 11, Pages: 933-941(2023)
- 作者机构：
  
  1. a Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering Jilin University
  2. b State Key Laboratory of Superhard Materials Jilin University Changchun People’s Republic of China
  3. a Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering Jilin University Changchun People’s Republic of China
  4. c International Center of Future Science Jilin University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2265411
  CLC：
- Online First：06 October 2023，
  
  Published：2023
- 稿件说明：
移动端阅览
Lei Zhao, Min Zha, Yipeng Gao, et al. Twinning-mediated plasticity by a novel multistage twinning mode in an Mg-Al-Gd alloy[J]. Materials Research Letters, 2023, 11(11): 933-941.
DOI：

Lei Zhao, Min Zha, Yipeng Gao, et al. Twinning-mediated plasticity by a novel multistage twinning mode in an Mg-Al-Gd alloy[J]. Materials Research Letters, 2023, 11(11): 933-941. DOI： 10.1080/21663831.2023.2265411.

摘要

Abstract

Twinning-mediated plasticity has great potential for enhancing the strength and plasticity of Mg alloys

which is limited due to the lack of twin types. Here

we report a novel multistage twinning mode

i.e. the dominant twinning mode changes from single {101¯2} twins to the co-existence of {101¯2} and {112¯6} twins

in a deformed Mg-Al-Gd alloy. Introducing novel multistage twinning mode to accommodate strains appreciably along

-axes

combined with the interactions of high-density dislocations and dense twin boundaries

guarantees the high strain hardening of Mg alloys. These findings provide new insights into deformation mechanisms and mechanical properties of Mg-alloys.

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Related Author

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Guohao Du

Related Institution

c Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute CAS

b Ningbo Institute of Dalian University of Technology

a Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Dalian People’s Republic of China

a Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology

a School of Mechanical Engineering Yanshan University

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