# Elucidating deformation pathways and interface characteristic of self-accommodated dual γ/ε phase microstructure in Fe–Mn–Si–Al alloy

https://mdr.nims.go.jp/datasets/457a9a9f-4add-4bbe-8601-deab786cca0c

## File

- [MATERIALSCHAR-S-23-03957 (2).pdf](https://mdr.nims.go.jp/filesets/7e11ac6d-4108-4689-86ab-0a99a35e1a90/download) ([Detail](https://mdr.nims.go.jp/filesets/7e11ac6d-4108-4689-86ab-0a99a35e1a90.md))

## Id

457a9a9f-4add-4bbe-8601-deab786cca0c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-06T03:57:31.190720Z

## Updated at

2024-12-10T07:56:08.614366Z

## Published at

2024-12-10T07:56:08.694176Z

## Doi

https://doi.org/10.48505/nims.5129

## First published url

https://doi.org/10.1016/j.matchar.2023.113521

## Date published

2023-12-04

## Recorded date published

2024-1

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Elucidating deformation pathways and interface characteristic of self-accommodated
    dual γ/ε phase microstructure in Fe–Mn–Si–Al alloy
  title_type: original
  lang: en

## Description

- description: 'There has been an intense scientific interest in investigating the
    phenomenon of deformation-induced ε-ε martensite (hcp) interaction owing to the
    thermodynamically paradoxical reverse transformation and mechanical twinning.
    In this study, detailed transmission electron microscopy has been employed to
    examine the crystallographic orientation relationship, phase stability and boundaries
    between the intersection phases on the ε-ε intersections in a 10% tensile deformed
    Fe–30Mn–4Si–2Al alloy. The transformation/twinning scheme is systematically summarized
    initiating from the austenite matrix (γ) and two deformation-induced ε-martensite
    variants. It involves diverse intersection reactions: mechanical ε-twins, a 90º-rotating
    γ-phase from the γ matrix (γR), and 90º-rotate ε-phase re-transformed from the
    intersection γ. All these phases share a common <101>γ || <21 ̅1 ̅0>ε axis that
    is equivalent to the intersection axis of the crossing {111}<12 ̅1>γ shears and
    interrelated with rotational angles with respect to the axis. Electron diffraction,
    coupled with stereographic analysis, revealed the distinct orientation relationships
    between γ–ε and γR–ε phases.'
  description_type: abstract
  lang: und

## Creator

- name: Digvijay Singh
  role: author
  orcid: https://orcid.org/0000-0003-4357-957X
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Alok Singh
  role: author
  orcid: https://orcid.org/0000-0001-5515-8305
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takahiro Sawaguchi
  role: author
  orcid: https://orcid.org/0000-0002-9405-002X
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Martensite transformation
  schema: not_defined
- subject: Twinning
  schema: not_defined
- subject: TRIP steels
  schema: not_defined
- subject: Transmission electron microscopy (TEM)
  schema: not_defined
- subject: ε-martensite
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Materials Characterization
  issn: '10445803'
  volume: '207'
  article_number: '113521'

## Conference



## Related item



## Funding

- identifier: 21H01659
  funder_name: Japan Society for the Promotion of Science

## 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



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## Custom property



## Fileset

- id: 7e11ac6d-4108-4689-86ab-0a99a35e1a90
  filename: MATERIALSCHAR-S-23-03957 (2).pdf
  content_type: application/pdf
  size: 3328313
  md5: 2e4e223bc9cedd40f6d6c397cfc695d8

## Thumbnail

fileset_id: 7e11ac6d-4108-4689-86ab-0a99a35e1a90
filename: MATERIALSCHAR-S-23-03957 (2).pdf