# Achieving remarkable enhancement of yield strength ensuring large ductility in a metastable Fe<sub>50</sub>Mn<sub>30</sub>Cr<sub>10</sub>Co<sub>10</sub> high-entropy alloy via warm rolling treatment

https://mdr.nims.go.jp/datasets/a43b70ac-1a38-4c32-83bd-c1b21c9dd20c

## Files

- [65_ISIJINT-2025-129.pdf](https://mdr.nims.go.jp/filesets/835dd1cc-17b3-4afd-a093-d5e2483587fb/download) ([Detail](https://mdr.nims.go.jp/filesets/835dd1cc-17b3-4afd-a093-d5e2483587fb.md))

## Id

a43b70ac-1a38-4c32-83bd-c1b21c9dd20c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-15T00:45:52.818928Z

## Updated at

2025-08-18T07:30:57.240712Z

## Published at

2025-08-18T07:21:29.124461Z

## Doi



## First published url

https://doi.org/10.2355/isijinternational.isijint-2025-129

## Date published

2025-08-15

## Recorded date published

2025

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Achieving remarkable enhancement of yield strength ensuring large ductility
    in a metastable Fe<sub>50</sub>Mn<sub>30</sub>Cr<sub>10</sub>Co<sub>10</sub> high-entropy
    alloy via warm rolling treatment
  title_type: original
  lang: en

## Description

- description: The metastable Fe50Mn30Cr10Co10 (at. %) high-entropy alloy (HEA) integrates
    the principles of HEA and transformation-induced plasticity (TRIP), resulting
    in an exceptional combination of tensile strength and ductility. However, the
    inherently low yield strength restricts its application as a structural material.
    In this study, 50% warm rolling at 573 K was employed as a straightforward and
    cost-effective thermomechanical processing strategy to fabricate metastable Fe50Mn30Cr10Co10
    HEA with enhanced yield strength while retaining large ductility. The mechanical
    responses and deformation behaviors of the metastable HEA were examined using
    room temperature tensile tests, along with postmortem X-ray diffraction (XRD)
    and electron backscatter diffraction (EBSD) analyses. Compared to the fully recrystallized
    counterparts, the warm-rolled specimens exhibited a threefold increase in yield
    strength while retaining substantial uniform elongation. The warm rolling treatment
    increased the mechanical stability of the austenitic phase against stress-assisted
    γ-ε martensitic transformation, shifting the yielding mechanism from martensitic
    transformation to dislocation slip, thereby enhancing the yield strength. Moreover,
    warm rolling completely suppressed the athermal γ-ε martensitic transformation
    even at 77 K, while the strain-induced γ-ε martensitic transformation remained
    pronounced at room temperature, contributing to the alloy’s high strength and
    large ductility.
  description_type: abstract
  lang: und

## Creator

- name: Xiaodong Lan
  role: author
  orcid: https://orcid.org/0000-0002-7075-1753
- name: Kaneaki Tsuzaki
  role: author
  orcid: https://orcid.org/0000-0003-2400-7605
- name: Rintaro Ueji
  role: author
  orcid: https://orcid.org/0000-0001-6969-3165
- name: Akinobu Shibata
  role: author
  orcid: https://orcid.org/0000-0001-8577-6411

## Contact agent



## Publisher

organization: Iron and Steel Institute of Japan

## Managing organization



## Keyword

- subject: metastable high-entropy alloy
  schema: not_defined
- subject: warm rolling
  schema: not_defined
- subject: martensitic transformation
  schema: not_defined
- subject: ε-TRIP effect
  schema: not_defined
- subject: mechanical properties
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ISIJ International
  issn: '09151559'
  volume: '65'
  issue: '9'
  article_number: ISIJINT-2025-129

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 835dd1cc-17b3-4afd-a093-d5e2483587fb
  filename: 65_ISIJINT-2025-129.pdf
  content_type: application/pdf
  size: 17966268
  md5: 690f6e121b9e969928a30f904599ee6a

## Thumbnail

fileset_id: 835dd1cc-17b3-4afd-a093-d5e2483587fb
filename: 65_ISIJINT-2025-129.pdf