Developing high-strength and ductile Mg-Gd-Y-Zn-Zr alloy sheet via bimodal grain structure coupling with heterogeneously-distributed precipitates

Min Zha; Si-Qing Wang; Tong Wang; Hai-Long Jia; Yong-Kang Li; Zhen-Ming Hua; Kai Guan; Cheng Wang; Hui-Yuan Wang

doi:10.1080/21663831.2023.2235375

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Developing high-strength and ductile Mg-Gd-Y-Zn-Zr alloy sheet via bimodal grain structure coupling with heterogeneously-distributed precipitates

Report | 更新时间：2026-08-19

- Developing high-strength and ductile Mg-Gd-Y-Zn-Zr alloy sheet via bimodal grain structure coupling with heterogeneously-distributed precipitates
- Materials Research Letters Vol. 11, Issue 9, Pages: 772-780(2023)
- 作者机构：
  
  1. a State Key Laboratory of Superhard Materials Jilin University
  2. b Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering Jilin University Changchun People’s Republic of China
  3. c International Center of Future Science Jilin University
  4. a State Key Laboratory of Superhard Materials Jilin University Changchun People’s Republic of China
  5. c International Center of Future Science Jilin University Changchun People’s Republic of China
  6. d School of Materials Science and Engineering Hebei University of Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2235375
  CLC：
- Online First：14 July 2023，
  
  Published：2023
- 稿件说明：
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Min Zha, Si-Qing Wang, Tong Wang, et al. Developing high-strength and ductile Mg-Gd-Y-Zn-Zr alloy sheet via bimodal grain structure coupling with heterogeneously-distributed precipitates[J]. Materials Research Letters, 2023, 11(9): 772-780.
DOI：

Min Zha, Si-Qing Wang, Tong Wang, et al. Developing high-strength and ductile Mg-Gd-Y-Zn-Zr alloy sheet via bimodal grain structure coupling with heterogeneously-distributed precipitates[J]. Materials Research Letters, 2023, 11(9): 772-780. DOI： 10.1080/21663831.2023.2235375.

摘要

Abstract

BSTRACTAchieving high strength-ductility synergy in hard-to-deform high-alloyed Mg-Gd-Y-Zn-Zr alloys by rolling remains a great challenge. In this work

a Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr (wt.%) alloy sheet possessing a high yield strength (YS) of ∼385 MPa

ultimate tensile strength (UTS) of ∼420 MPa and elongation of ∼19% was achieved via a single-pass hard-plate rolling (HPR) process. The high YS is mainly from amounts of submicron FGs and strong interactions between densely distributed

′ precipitates and pyramidal c + a dislocations in CGs. The activation of multiple slip systems

HDI-hardening effect

and crack suppression effect from

′ particles

endow the excellent ductility.

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Related Institution

a College of Materials Science and Engineering Chongqing University Chongqing People’s Republic of China

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b Central Iron and Steel Research Institute (CISRI)

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