# Analysis of the temperature-dependent plastic deformation of single crystals of quinary, quaternary and ternary equiatomic high- and medium-entropy alloys of the Cr-Mn-Fe-Co-Ni system

https://mdr.nims.go.jp/datasets/a97cef86-86b9-44e5-a3d0-2e53b9505a7f

## File

- [Analysis of the temperature-dependent plastic deformation of single crystals of quinary quaternary and ternary equiatomic high- and medium-entropy al.pdf](https://mdr.nims.go.jp/filesets/ecb0606e-6091-43b1-bf24-7162d772d5f6/download) ([Detail](https://mdr.nims.go.jp/filesets/ecb0606e-6091-43b1-bf24-7162d772d5f6.md))

## Id

a97cef86-86b9-44e5-a3d0-2e53b9505a7f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-20T05:20:47.992604Z

## Updated at

2025-07-16T07:14:47.808062Z

## Published at

2024-08-29T23:30:24.062322Z

## Doi

https://doi.org/10.48505/nims.4703

## First published url

https://doi.org/10.1080/14686996.2024.2376524

## Date published

2024-12-31

## Recorded date published

2024-12-31

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Analysis of the temperature-dependent plastic deformation of single crystals
    of quinary, quaternary and ternary equiatomic high- and medium-entropy alloys
    of the Cr-Mn-Fe-Co-Ni system
  title_type: original
  lang: en

## Description

- description: Temperature-dependent plastic deformation behaviors of single crystals
    of quaternary and ternary equiatomic medium-entropy alloys (MEAs) belonging to
    the Cr-Mn-Fe-Co-Ni system were investigated in compression at temperatures in
    the range 9 K to 1373 K. Their critical resolved shear stresses (CRSSs) increase
    with decreasing temperature below room temperature. There is also a dulling of
    the temperature dependence of CRSS below 77 K due to dislocation inertial effects
    that we attribute to a decrease in the phonon drag coefficient. These behaviors
    were compared with those of previously investigated single crystals of the equiatomic
    Cr-Co-Ni and Cr-Fe-Co-Ni MEAs, and the equiatomic Cr-Mn-Fe-Co-Ni high-entropy
    alloy (HEA). The temperature dependence of CRSS and the apparent activation volumes
    below room temperature can be well described by conventional thermal activation
    theories of face-centered cubic (FCC) alloys. Above 673 K, there is a small increase
    in CRSS, which we believe is due to elastic interactions between solutes and mobile
    dislocations, the so-called Portevin-Le Chatelier (PL) effect. The CRSS at 0 K
    was obtained by extrapolation of fitted CRSS vs. temperature curves and compared
    with predictions from solid solution strengthening models of HEA and MEAs.
  description_type: abstract
  lang: en

## Creator

- name: Le Li
  role: author
  organization: Department of Materials Science and Engineering, Kyoto University
- name: Zhenghao Chen
  role: author
  organization: Department of Materials Science and Engineering, Kyoto University
- name: Seiko Tei
  role: author
- name: Yusuke Matsuo
  role: author
- name: Ryosuke Chiba
  role: author
- name: Koretaka Yuge
  role: author
- name: Haruyuki Inui
  role: author
- name: Easo P. George
  role: author

## Contact agent



## Publisher

organization: Taylor & Francis

## Managing organization



## Keyword

- subject: High-entropy alloys
  schema: not_defined
- subject: single crystals
  schema: not_defined
- subject: critical resolved shear stress
  schema: not_defined
- subject: thermal activation
  schema: not_defined
- subject: mean-square atomic displacement
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science and Technology of Advanced Materials
  issn: '14686996'
  volume: '25'
  article_number: " 2376524"

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## Specimen



## Chemical composition



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## Fileset

- id: ecb0606e-6091-43b1-bf24-7162d772d5f6
  filename: Analysis of the temperature-dependent plastic deformation of single crystals
    of quinary quaternary and ternary equiatomic high- and medium-entropy al.pdf
  content_type: application/pdf
  size: 1793958
  md5: 1cf334631b168cee138ad1a5bb2f2f22

## Thumbnail

fileset_id: ecb0606e-6091-43b1-bf24-7162d772d5f6
filename: Analysis of the temperature-dependent plastic deformation of single crystals
  of quinary quaternary and ternary equiatomic high- and medium-entropy al.pdf