# In situ synchrotron X-ray imaging of curved columnar growth and ripple formation in Fe-Mn-Cr-Ni-Si alloy during GTA welding

https://mdr.nims.go.jp/datasets/a3ced32b-823d-4e91-9761-2fbaff5f00b8

## File

- [最終原稿版.pdf](https://mdr.nims.go.jp/filesets/654c0f20-325d-44e6-830c-2dd8ed64be0b/download) ([Detail](https://mdr.nims.go.jp/filesets/654c0f20-325d-44e6-830c-2dd8ed64be0b.md))

## Id

a3ced32b-823d-4e91-9761-2fbaff5f00b8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-09-22T03:57:33.496581Z

## Updated at

2025-09-22T07:30:19.129784Z

## Published at

2025-09-22T07:18:41.790486Z

## Doi

https://doi.org/10.48505/nims.5774

## First published url

https://doi.org/10.1177/13621718251360932

## Date published

2025-08-04

## Recorded date published

2025-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: In situ synchrotron X-ray imaging of curved columnar growth and ripple formation
    in Fe-Mn-Cr-Ni-Si alloy during GTA welding
  title_type: original
  lang: en

## Description

- description: The dynamics of curved columnar growth and ripple formation in Fe-Mn-Cr-Ni-Si
    alloys were studied in situ during GTA melt-run welding using synchrotron radiation
    X-ray imaging with high spatial resolution. In situ observations demonstrated
    that primary dendrite arm growth ceased when the angle between the growth direction
    of the primary dendrite arms and the direction of the maximum temperature gradient
    exceeded 44–49 º at welding speeds of 1–7 mm/s. Consequently, curved columnar
    grains were formed by changing the growth direction via the development of secondary
    dendrite arms into primary dendrite arms. Image analysis revealed that a weld
    ripple, where solutes were highly segregated in the dendrite trunk, was formed
    by a rapid increase in the interface velocity.
  description_type: abstract
  lang: und

## Creator

- name: Tomoya Nagira
  role: author
  orcid: https://orcid.org/0000-0002-2415-0623
- name: Houichi Kitano
  role: author
  orcid: https://orcid.org/0000-0002-0778-574X
- name: Takashi Kimura
  role: author
- name: Fumiyoshi Yoshinaka
  role: author
  orcid: https://orcid.org/0000-0003-0534-7815
- name: Susumu Takamori
  role: author
  orcid: https://orcid.org/0000-0003-3422-9391
- name: Takahiro Sawaguchi
  role: author
  orcid: https://orcid.org/0000-0002-9405-002X
- name: Takayuki Yamashita
  role: author
- name: Yasuhiro Aoki
  role: author
- name: Hidetoshi Fujii
  role: author

## Contact agent



## Publisher

organization: SAGE Publications

## Managing organization



## Keyword

- subject: in situ observation
  schema: not_defined
- subject: X-ray imaging
  schema: not_defined
- subject: GTA welding
  schema: not_defined

## Rights

- description: "© The Author(s) 2025."
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science and Technology of Welding and Joining
  issn: '13621718'
  volume: '30'
  issue: '4'
  start_page: 296
  end_page: 304

## Conference



## Related item



## Funding

- identifier: 23H01731 and 24K01220
  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



## Software



## Custom property



## Fileset

- id: 654c0f20-325d-44e6-830c-2dd8ed64be0b
  filename: 最終原稿版.pdf
  content_type: application/pdf
  size: 3188765
  md5: 57b55d4ba9f4bac1f66e891e9db507ea

## Thumbnail

fileset_id: 654c0f20-325d-44e6-830c-2dd8ed64be0b
filename: 最終原稿版.pdf