# In-situ observation of solidification behaviors of Fe-Mn-Cr-Ni-Si alloy during TIG melt-run welding using synchrotron radiation X-ray

https://mdr.nims.go.jp/datasets/823e88d3-55a3-485e-a20d-3404101fff2b

## File

- [著者最終稿_mater charact.pdf](https://mdr.nims.go.jp/filesets/2eda00c9-550c-40b2-acff-bd6b4395006f/download) ([Detail](https://mdr.nims.go.jp/filesets/2eda00c9-550c-40b2-acff-bd6b4395006f.md))

## Id

823e88d3-55a3-485e-a20d-3404101fff2b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-07-01T09:28:41.100070Z

## Updated at

2024-07-02T00:19:23.696151Z

## Published at

2026-06-21T23:26:37.240345Z

## Doi

https://doi.org/10.48505/nims.4567

## First published url

https://doi.org/10.1016/j.matchar.2024.114093

## Date published

2024-06-20

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: In-situ observation of solidification behaviors of Fe-Mn-Cr-Ni-Si alloy during
    TIG melt-run welding using synchrotron radiation X-ray
  title_type: original
  lang: en

## Description

- description: 'The solidification behaviors, including the solidification cracking
    and solidification mode of the Fe-Mn-Cr-Ni-Si alloys at the weld bead during tungsten
    inert gas (TIG) melt-run welding, were examined by time-resolved in-situ observations
    using synchrotron radiation X-ray imaging and X-ray diffraction. The dynamics
    of initiation and propagation of solidification cracking at the weld bead could
    be observed at the dendrite scale. For the specimen solidified in the austenite
    mode at a welding speed of 10 mm/s, solidification cracking with a zigzag interface
    developed via the coalescence of many small pores at the centerline, where the
    columnar dendrite tips impinged. Quantitative image analysis indicated that the
    local tensile strain was highly localized at the centerline, and the critical
    local tensile strain for the initiation of solidification cracking was approximately
    0.04. For the specimen solidifying in the ferrite-austenite mode at the welding
    speed of 10 mm/s, the centerline solidification cracking was suppressed by the
    formation of many equiaxed γ-Fe dendrites ahead of the growing columnar δ-Fe dendrites.
    Grain refinement at the centerline can be achieved at a welding speed of more
    than 7 mm/s without requiring inoculants. '
  description_type: abstract
  lang: eng

## Creator

- name: Tomoya Nagira
  role: author
  orcid: https://orcid.org/0000-0002-2415-0623
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Evaluation Field/Welding
    and Joining Technology Group
  ror: https://ror.org/026v1ze26
- name: Houichi Kitano
  role: author
  orcid: https://orcid.org/0000-0002-0778-574X
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Evaluation Field/Welding
    and Joining Technology Group
  ror: https://ror.org/026v1ze26
- name: Takashi Kimura
  role: author
  organization: JEOL Ltd.
- name: Fumiyoshi Yoshinaka
  role: author
  orcid: https://orcid.org/0000-0003-0534-7815
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Manufacturing Field/Thermomechanical
    Processing Group
  ror: https://ror.org/026v1ze26
- name: Susumu Takamori
  role: author
  orcid: https://orcid.org/0000-0003-3422-9391
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Manufacturing Field/Thermomechanical
    Processing Group
  ror: https://ror.org/026v1ze26
- name: Takahiro Sawaguchi
  role: author
  orcid: https://orcid.org/0000-0002-9405-002X
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Manufacturing Field/Thermomechanical
    Processing Group
  ror: https://ror.org/026v1ze26
- name: Takayuki Yamashita
  role: author
  organization: Joining and Welding Research Institute,Osaka University
- name: Yasuhiro Aoki
  role: author
  organization: Joining and Welding Research Institute,Osaka University
- name: Hidetoshi Fujii
  role: author
  organization: Joining and Welding Research Institute,Osaka University
- name: Akihisa Takeuchi
  role: author
  organization: Japan Synchrotron Radiation Research Institute (JASRI)
- name: Masayuki Uesugi
  role: author
  organization: Japan Synchrotron Radiation Research Institute (JASRI)

## Contact agent



## Publisher

organization: Elsevier

## Managing organization



## Keyword

- subject: In-situ observation
  schema: not_defined
- subject: TIG melt-run welding
  schema: not_defined
- subject: synchrotron radiation X-ray
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-06-22
end_date: 2026-06-22

## Journal

- title: MATERIALS CHARACTERIZATION
  issn: '10445803'
  volume: '214'

## Conference



## Related item



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 2eda00c9-550c-40b2-acff-bd6b4395006f
  filename: 著者最終稿_mater charact.pdf
  content_type: application/pdf
  size: 5324837
  md5: a0ab434a51b67eb2fb9efb9ceed32fda

## Thumbnail

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filename: 著者最終稿_mater charact.pdf