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A Constitutive Model of Tensile Deformation of a Metastable Medium-Entropy Alloy

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Abstract

A physically based model is employed to trace the strain-hardening behavior of a metastable medium-entropy alloy (MEA) Fe61(CoNi)29Cr10 governed by a deformation-induced martensitic transformation. The approach is based on calculating the local quantities of the individual phases by means of constitutive modeling. An acceptable agreement between the experimental and the calculated stress–strain curves is verified. The model also demonstrates the variation of the phase composition of the MEA with strain due to the phase transformation.

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Acknowledgments

This work was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korea government (MSIP) (NRF–2021R1A2C3006662).

Conflict of interest

The authors declare that they have no conflict of interest.

Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea

    Jungwan Lee & Hyoung Seop Kim

  2. Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux (LEM3), CNRS, Université de Lorraine, Arts et Métier Paris Tech, 57000, Metz, France

    Olivier Bouaziz

  3. LABoratoire d’EXcellence DAMAS, Université de Lorraine, 57000, Metz, France

    Olivier Bouaziz

  4. Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3800, Australia

    Yuri Estrin

  5. Department of Mechanical Engineering, The University of Western Australia, Crawley, WA, 6009, Australia

    Yuri Estrin

  6. Graduate Institute of Ferrous & Energy Materials Technology, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea

    Hyoung Seop Kim

  7. Center for Heterogenic Metal Additive Manufacturing, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea

    Hyoung Seop Kim

  8. Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan

    Hyoung Seop Kim

Authors
  1. Jungwan Lee
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  2. Olivier Bouaziz
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  3. Yuri Estrin
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  4. Hyoung Seop Kim
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Corresponding authors

Correspondence to Olivier Bouaziz or Hyoung Seop Kim.

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Lee, J., Bouaziz, O., Estrin, Y. et al. A Constitutive Model of Tensile Deformation of a Metastable Medium-Entropy Alloy. Metall Mater Trans A 54, 2519–2524 (2023). https://doi.org/10.1007/s11661-023-07054-4

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  • DOI: https://doi.org/10.1007/s11661-023-07054-4

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