# Exploring unusual Lüders deformation in ultrafine-grained high-Mn austenitic steel

https://mdr.nims.go.jp/datasets/aa3bb126-907c-462e-9ee4-f7b042fbc8cd

## Files

- [2024_Materials Research Letters_Hwang_Exploring unusual Lüders deformation in ultrafine-grained high-Mn austenitic steel.pdf](https://mdr.nims.go.jp/filesets/ef162cd3-8498-4564-8092-e2f7ae3e6829/download) ([Detail](https://mdr.nims.go.jp/filesets/ef162cd3-8498-4564-8092-e2f7ae3e6829.md))

## Id

aa3bb126-907c-462e-9ee4-f7b042fbc8cd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-19T05:00:58.166664Z

## Updated at

2024-08-27T07:30:35.792274Z

## Published at

2024-08-27T07:30:35.887004Z

## Doi



## First published url

https://doi.org/10.1080/21663831.2024.2359611

## Date published

2024-08-02

## Recorded date published

2024-8-2

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Exploring unusual Lüders deformation in ultrafine-grained high-Mn austenitic
    steel
  title_type: original
  lang: en

## Description

- description: Ultrafine-grained (UFG) high-Mn austenitic steel exhibited unusual
    discontinuous yielding on its stress-strain curve, characterized by a yield drop
    followed by a stress plateau, indicative of Lüders deformation. Utilizing the
    digital image correlation (DIC) technique, a strain-localized region known as
    a Lüders band was observed to propagate during Lüders deformation. Following microstructural
    observations using state-of-the-art techniques such as in-situ synchrotron XRD
    measurement during the tensile test and ex-situ S/TEM and SEM-ECCI, dislocation
    multiplication, rather than twinning, was theoretically identified as the primary
    deformation mechanism responsible for the unusual Lüders deformation in UFG high-Mn
    austenitic steel.
  description_type: abstract
  lang: und

## Creator

- name: Sukyoung Hwang
  role: author
- name: Hirokazu Kato
  role: author
- name: Kazuho Okada
  role: author
  orcid: https://orcid.org/0000-0003-0183-4528
  organization: National Institute for Materials Science
- name: Myeong-heom Park
  role: author
- name: Avala Lavakumar
  role: author
- name: Reza Gholizadeh
  role: author
- name: Hiroki Adachi
  role: author
- name: Masugu Sato
  role: author
- name: Nobuhiro Tsuji
  role: author

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: High-Mn austenitic steel
  schema: not_defined
- subject: yield point
  schema: not_defined
- subject: Lüders deformation
  schema: not_defined
- subject: ultrafine grains
  schema: not_defined
- subject: TWIP effect
  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 Research Letters
  issn: '21663831'
  volume: '12'
  issue: '8'
  start_page: 571
  end_page: 579

## Conference



## Related item



## Funding

- identifier: 20H00306, 22K18888, 23H00234, 23K20037
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJCR1994
  funder_name: Ministry of Education, Culture, Sports, Science and Technology

## 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: ef162cd3-8498-4564-8092-e2f7ae3e6829
  filename: 2024_Materials Research Letters_Hwang_Exploring unusual Lüders deformation
    in ultrafine-grained high-Mn austenitic steel.pdf
  content_type: application/pdf
  size: 4533843
  md5: bc70e9b0013cfcfe7600624da848cd99

## Thumbnail

fileset_id: ef162cd3-8498-4564-8092-e2f7ae3e6829
filename: 2024_Materials Research Letters_Hwang_Exploring unusual Lüders deformation
  in ultrafine-grained high-Mn austenitic steel.pdf