# Effect of Ni and Fe content on the plastic deformation behavior of Co–Cr–Fe–Ni–Mo alloys: A combined computational and experimental study

https://mdr.nims.go.jp/datasets/ca780d02-a82d-48fe-81b1-52068f108c37

## File

- [JAlloysCompd1042(2025)183927.pdf](https://mdr.nims.go.jp/filesets/c15eac97-8ef3-4101-973e-207ef039449a/download) ([Detail](https://mdr.nims.go.jp/filesets/c15eac97-8ef3-4101-973e-207ef039449a.md))

## Id

ca780d02-a82d-48fe-81b1-52068f108c37

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-02T00:21:43.154796Z

## Updated at

2025-12-02T03:30:12.037850Z

## Published at

2025-12-02T03:24:11.118022Z

## Doi



## First published url

https://doi.org/10.1016/j.jallcom.2025.183927

## Date published

2025-09-22

## Recorded date published

2025-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Effect of Ni and Fe content on the plastic deformation behavior of Co–Cr–Fe–Ni–Mo
    alloys: A combined computational and experimental study'
  title_type: original
  lang: en

## Description

- description: "ASTM F1058 Co–22Cr–17Fe–15Ni–4Mo (mol%) alloys (equivalent to Co–20Cr–16Fe–15Ni–7Mo
    in mass%) are widely used in biomedical applications, particularly in balloon-expandable
    stents, which require a combination of high ultimate tensile strength (UTS), good
    ductility, and low 0.2 % proof strength. To optimize the mechanical properties
    of these alloys, it is essential to understand their plastic deformation behavior.
    In this study, first-principles calculations, microstructural analysis, and mechanical
    property evaluation were used to investigate the stacking fault energy (SFE) and
    plastic deformation behavior of these alloys as a function of their Ni and Fe
    content. First-principles calculations indicated that their SFE increased with
    increasing Ni and Fe content, with Ni influencing the SFE more than Fe. Experimentally,
    increasing the Ni content suppressed the γ-to-ε stress-induced martensitic transformation
    during plastic deformation, resulting in improved ductility without compromising
    strength. With increasing Ni content, the plastic deformation mechanism in the
    early stage changed from martensitic transformation and/or deformation twinning
    to dislocation slip, attributable to an increase in the SFE. This study indicates
    that SFE evaluation by first-principles calculations is an effective approach
    for designing Co–Cr-based multicomponent systems from the perspective of plastic
    deformation mechanisms. \r\n"
  description_type: abstract
  lang: und

## Creator

- name: Kai Hiyama
  role: author
- name: Tomoki Nakajima
  role: author
- name: Ryoji Sahara
  role: author
  orcid: https://orcid.org/0000-0003-0788-2985
  organization: National Institute for Materials Science
- name: Kyosuke Ueda
  role: author
- name: Takayuki Narushima
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Co–Cr alloy
  schema: not_defined
- subject: High entropy alloy
  schema: not_defined
- subject: Biomedical
  schema: not_defined
- subject: Stacking fault energy
  schema: not_defined
- subject: First-principles calculation
  schema: not_defined
- subject: Special quasi-random structure
  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: Journal of Alloys and Compounds
  issn: '09258388'
  volume: '1042'
  article_number: '183927'

## Conference



## Related item



## Funding

- identifier: 2025-014
  funder_name: National Institute for Materials Science
- identifier: 24K01149
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: c15eac97-8ef3-4101-973e-207ef039449a
  filename: JAlloysCompd1042(2025)183927.pdf
  content_type: application/pdf
  size: 13166407
  md5: c2126d21388d3fa8cc44d1e7a3e198fb

## Thumbnail

fileset_id: c15eac97-8ef3-4101-973e-207ef039449a
filename: JAlloysCompd1042(2025)183927.pdf