Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

Sujung Son; Jungwan Lee; Peyman Asghari-Rad; Rae Eon Kim; Hyojin Park; Jae-il Jang; Wen Chen; Yoon-Uk Heo; Hyoung Seop Kim

doi:10.1080/21663831.2023.2258158

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Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation

Original Reports | 更新时间：2026-08-19

- Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation
- Materials Research Letters Vol. 11, Issue 11, Pages: 915-924(2023)
- 作者机构：
  
  1. a Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH)
  2. b Graduate Institute of Ferrous & Eco Materials Technology Pohang University of Science and Technology (POSTECH)
  3. c Division of Materials Science and Engineering Hanyang University
  4. d Department of Mechanical and Industrial Engineering University of Massachusetts Amherst
  5. a Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea
  6. b Graduate Institute of Ferrous & Eco Materials Technology Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea
  7. e Advanced Institute for Materials Research (WPI-AIMR) Tohoku University Sendai Japan
  8. f Institute for Convergence Research and Education in Advanced Technology Yonsei University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2258158
  CLC：
- Online First：19 September 2023，
  
  Published：2023
- 稿件说明：
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Sujung Son, Jungwan Lee, Peyman Asghari-Rad, et al. Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation[J]. Materials Research Letters, 2023, 11(11): 915-924.
DOI：

Sujung Son, Jungwan Lee, Peyman Asghari-Rad, et al. Hierarchically heterogeneous microstructure and mechanical behavior of the multi-materials prepared by powder severe plastic deformation[J]. Materials Research Letters, 2023, 11(11): 915-924. DOI： 10.1080/21663831.2023.2258158.

摘要

Abstract

heterostructuring strategy is an effective approach for abiding problems referred to as the strength-ductility trade-off. However

tailoring the heterostructure is an arduous problem. This work synthesized hierarchically heterogeneity by combining the eutectic high-entropy alloy (EHEA) and medium-entropy alloy powders through novel powder metallurgy-based severe plastic deformation (P-SPD). EHEA forms nano-scaled heterogeneity composed of FCC and B2

and the mixture of powder types forms micro-scale heterogeneity with hard and soft domains. This hierarchically heterogeneous microstructure leads to strong hetero-deformation-induced strengthening

achieving a yield strength of ∼1.5 GPa. The present P-SPD represents the feasibility of heterostructuring

aiding the development of HEAs.

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