Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy

Jing Huang; Wanpeng Li; Junyang He; Rui Zhou; Tzu-Hsiu Chou; Tao Yang; Chain-Tsuan Liu; Weidong Zhang; Yong Liu; Jacob C. Huang

doi:10.1080/21663831.2022.2067790

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Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy

Original Reports | 更新时间：2026-08-19

- Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy
- Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy
- 材料研究快报（英文） 2022年10卷第9期页码：575-584
- 作者机构：
  
  1. a State Key Laboratory of Powder Metallurgy Central South University Changsha People’s Republic of China
  2. b Department of Materials Science and Engineering Hong Kong Institute for Advanced Study City University of Hong Kong
  3. a State Key Laboratory of Powder Metallurgy Central South University
  4. c College of Materials Science and Engineering Hunan University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2022.2067790
  中图分类号：
- 网络首发：2022-05-03，
  
  纸质出版：2022
- 稿件说明：
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Jing Huang, Wanpeng Li, Junyang He, 等. Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy[J]. 材料研究快报（英文）, 2022,10(9):575-584.

Jing Huang, Wanpeng Li, Junyang He, et al. Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy[J]. Materials Research Letters, 2022, 10(9): 575-584.
Jing Huang, Wanpeng Li, Junyang He, 等. Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy[J]. 材料研究快报（英文）, 2022,10(9):575-584. DOI： 10.1080/21663831.2022.2067790.

Jing Huang, Wanpeng Li, Junyang He, et al. Dual heterogeneous structure facilitating an excellent strength-ductility combination in an additively manufactured multi-principal-element alloy[J]. Materials Research Letters, 2022, 10(9): 575-584. DOI： 10.1080/21663831.2022.2067790.

摘要

Abstract

The (FeCoNi)

multi-principal-element alloy with a dual heterogeneous microstructure was successfully fabricated by selective laser melting

exhibiting an excellent combination of strength (ultimate tensile strength

1085.2 ± 23.2 MPa) and ductility (30.5 ± 2.6%). It is evidenced that the joint effects of the hetero-deformation induced hardening from grains with heterogeneous geometrically necessary dislocations densities

in-situ formed B2 phase

and the coherent precipitation hardening from in-situ formed nano L1

phase were responsible for the strength. This work sheds light on the feasibility of simplifying the production of multi-mechanism strengthened alloys within one step and paves a new avenue to produce high-performance complex-shaped components.

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相关机构

a National Engineering Research Center of Near-net-shape Forming for Metallic Materials Guangdong Provincial Key Laboratory for Processing and Forming of Advanced Metallic Materials South China University of Technology

b State Key Laboratory for Materials Processing and Die and Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw

a Multidisciplinary Research Center – Cardinal Stefan Wyszynski University in Warsaw Warsaw Poland

b Institute of High Pressure Physics Polish Academy of Sciences

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