Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy

Jihye Kwon; Farahnaz Haftlang; Yeon Taek Choi; Eun Seong Kim; Hyoung Seop Kim

doi:10.1080/21663831.2023.2292731

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Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy

Report | 更新时间：2026-08-19

- Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy
- Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy
- 材料研究快报（英文） 2024年12卷第1期页码：50-57
- 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. a Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea
  4. b Graduate Institute of Ferrous & Eco Materials Technology Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea
  5. c Advanced Institute for Materials Research (WPI-AIMR) Tohoku University Sendai Japan
  6. d Institute for Convergence Research and Education in Advanced Technology Yonsei University
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2023.2292731
  中图分类号：
- 网络首发：2023-12-13，
  
  纸质出版：2024
- 稿件说明：
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Jihye Kwon, Farahnaz Haftlang, Yeon Taek Choi, 等. Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy[J]. 材料研究快报（英文）, 2024,12(1):50-57.

Jihye Kwon, Farahnaz Haftlang, Yeon Taek Choi, et al. Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy[J]. Materials Research Letters, 2024, 12(1): 50-57.
Jihye Kwon, Farahnaz Haftlang, Yeon Taek Choi, 等. Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy[J]. 材料研究快报（英文）, 2024,12(1):50-57. DOI： 10.1080/21663831.2023.2292731.

Jihye Kwon, Farahnaz Haftlang, Yeon Taek Choi, et al. Multiple-stage strain hardening due to the deformation-induced martensitic transformation in additively manufactured high-entropy alloy[J]. Materials Research Letters, 2024, 12(1): 50-57. DOI： 10.1080/21663831.2023.2292731.

摘要

Abstract

This study investigates microstructural changes and the presence of multiple stages in strain hardening ratio (SHR) resulting from the sequential occurrence of deformation-induced martensitic transformation (DIMT) during the tensile deformation of an additively manufactured ferrous medium entropy alloy (AMed-FeMEA). The inherent microstructural heterogeneity in AMed-alloys contributes to distinctive deformation mechanisms and instantaneous hardening behavior at varying strain levels. To comprehensively address this phenomenon

a semi-empirical constitutive model is presented that associates multiple stages in SHR with the occurrence rate of DIMT. The model demonstrates its applicability by characterizing tensile deformation of AMed-FeMEA at both room temperature and liquid nitrogen temperature.

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