# Determination of the Entire Existence Composition Range of CrMnFeCoNi High-Entropy Alloys Using Sintered Diffusion Multiple Method

https://mdr.nims.go.jp/datasets/bc02df2a-3839-4c1a-ab65-2f2c10dfea7f

## File

- [materials-18-00295 (1).pdf](https://mdr.nims.go.jp/filesets/e977eb41-c188-4cf8-8498-81e51493295b/download) ([Detail](https://mdr.nims.go.jp/filesets/e977eb41-c188-4cf8-8498-81e51493295b.md))

## Id

bc02df2a-3839-4c1a-ab65-2f2c10dfea7f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-07T06:57:32.147275Z

## Updated at

2025-12-09T07:30:26.431270Z

## Published at

2025-12-09T03:30:33.936634Z

## Doi



## First published url

https://doi.org/10.3390/ma18020295

## Date published

2025-01-10

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Determination of the Entire Existence Composition Range of CrMnFeCoNi High-Entropy
    Alloys Using Sintered Diffusion Multiple Method
  title_type: original
  lang: en

## Description

- description: Sintered diffusion multiple (SDM) method, which have been developed
    in our research group, has been applied to determine the existence composition
    range of the CrMnFeCoNi high-entropy alloy stereoscopically and continuously over
    the mostly entire range. Samples were prepared by sintering mixed elemental powders
    and annealed at 970°C or 800°C. Several hundreds of thousands of points were analyzed
    at random within the samples for chemical compositions with electron probe micro
    analysis. With the idea that ideally only chemical compositions of existing phases
    at the temperature of annealing are obtained, the compositional data thus obtained
    were analyzed to estimate phase boundaries of the high-entropy phase including
    the Cantor alloy composition assuming local equilibrium within the samples. The
    analysis includes the determination of point densities and their slopes in the
    space of chemical composition. The results are shown in the tetrahedral compositional
    space with vertices for Cr, Mn, and Fe atomic fractions and sum of Co and Ni fractions.
    One of the features found in this work is that the high-entropy phase has a wide
    compositional range in the Fe-CrMnCoNi direction. The estimated phase boundary
    compositions are found to be approximately in good agreement with those obtained
    using samples prepared by the conventional method, where samples with uniform
    compositions are equilibrated by annealing and the compositions of their existing
    phases are analyzed with EPMA. Thus, the sintered diffusion multiple method is
    effective in providing an overview of quinary phase diagrams.
  description_type: abstract
  lang: und

## Creator

- name: Ryuta Yurishima
  role: author
- name: Ayako Ikeda
  role: author
  orcid: https://orcid.org/0000-0002-1705-9004
  organization: National Institute for Materials Science
- name: Teruyuki Ikeda
  role: author
  orcid: https://orcid.org/0000-0001-7076-6958

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: high-entropy alloys
  schema: not_defined
- subject: phase diagram
  schema: not_defined
- subject: sintered diffusion multiple method
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Materials
  issn: '19961944'
  volume: '18'
  issue: '2'
  article_number: '295'

## Conference



## Related item



## Funding

- identifier: 19H05165
  funder_name: Grant-in-Aid for Scientific Research on Innovative Areas from JSPS
    KAKENHI
- identifier: 2024-095
  funder_name: Grant-in-Aid for Scientific Research on Innovative Areas from JSPS
    KAKENHI
- identifier: 19H05165
  funder_name: NIMS Joint Research Hub Program
- identifier: 2024-095
  funder_name: NIMS Joint Research Hub Program

## 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: e977eb41-c188-4cf8-8498-81e51493295b
  filename: materials-18-00295 (1).pdf
  content_type: application/pdf
  size: 3385790
  md5: ebff10c92f149f912d93749154e603ba

## Thumbnail

fileset_id: e977eb41-c188-4cf8-8498-81e51493295b
filename: materials-18-00295 (1).pdf