# Tensile deformation behavior of TRIP-aided bainitic ferrite steel in the post-necking strain region

https://mdr.nims.go.jp/datasets/68ae782f-73f4-4e11-b181-1b02261d752e

## File

- [matsuno_STAM-M2021.pdf](https://mdr.nims.go.jp/filesets/46ed4938-7f15-46d1-ab7c-17aefc3e4165/download) ([Detail](https://mdr.nims.go.jp/filesets/46ed4938-7f15-46d1-ab7c-17aefc3e4165.md))

## Id

68ae782f-73f4-4e11-b181-1b02261d752e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-02-22T06:26:26.805644Z

## Updated at

2024-01-05T13:12:21.684476Z

## Published at

2023-02-28T02:45:31.381883Z

## Doi



## First published url

https://doi.org/10.1080/27660400.2021.1922207

## Date published

2021-01-01

## Recorded date published

2021-1-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Tensile deformation behavior of TRIP-aided bainitic ferrite steel in the
    post-necking strain region
  title_type: original
  lang: en

## Description

- description: This study validated the methods for the evaluation of stress triaxiality
    using finite element (FE) simulations. The FE simulations tracing actual mechanical
    tests demonstrate derived local stress triaxiality at the fracture portion. Conventionally,
    such numerically derived stress triaxiality identifies ductile fracture loci for
    advanced high-strength steels (AHSSs). Although the method has been confirmed,
    the stress evaluation by FE simulations have not been validated by comparing with
    actual values. Thus, this study conducted the direct measurement of stress triaxiality
    in the small round-bar tensile tests using synchrotron X-ray diffraction. Two
    types of AHSSs—dual-phase (DP) and transformation-induced plasticity (TRIP) steels—were
    used for the study. As an additional advancement of this study, the modified Swift
    law was introduced to the FE simulations as a work-hardening law to facilitate
    an accurate prediction of the stress vs. strain curve in the large strain region.
    Consequently, the numerically simulated stress triaxiality with the modified Swift
    law agreed well with the measurement for the DP steel. However, the FE simulation
    did not agree with the measurements for the TRIP steel due to the stress partitioning
    of the α- and γ-phases, and transformation from the γ- to the α-phases.
  description_type: abstract
  lang: eng

## Creator

- name: Takashi Matsuno
  role: author
- name: Tomohiko Hojo
  role: author
- name: Ikumu Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-7693-1675
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Ayumi Shiro
  role: author
- name: Takahisa Shobu
  role: author
- name: Kentaro Kajiwara
  role: author

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: Advanced high-strength steel
  schema: not_defined
- subject: large strain
  schema: not_defined
- subject: stress-triaxiality
  schema: not_defined
- subject: small round-bar tensile test
  schema: not_defined
- subject: synchrotron X-ray diffraction
  schema: not_defined
- subject: finite element simulation
  schema: not_defined

## Rights

- description: Creative Commons BY Attribution 4.0 International
  identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: 'Science and Technology of Advanced Materials: Methods'
  issn: '27660400'
  volume: '1'
  issue: '1'
  start_page: 56
  end_page: 74

## Conference



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 46ed4938-7f15-46d1-ab7c-17aefc3e4165
  filename: matsuno_STAM-M2021.pdf
  content_type: application/pdf
  size: 13602378
  md5: 633860021a162f38d83346a6370efc5c

## Thumbnail

fileset_id: 46ed4938-7f15-46d1-ab7c-17aefc3e4165
filename: matsuno_STAM-M2021.pdf