# Evaluation of Residual Stress Distribution in Linear Friction Welded Steel Joint <i>via</i> Neutron Diffraction Mapping Measurement

https://mdr.nims.go.jp/datasets/f73b46ca-ebfa-495d-b6a8-0f40495a9523

## File

- [山下_鉄と鋼_Vol.111 No.17_1057-1071.pdf](https://mdr.nims.go.jp/filesets/e3508a5f-8fa1-4ac3-9793-4f6744226daf/download) ([Detail](https://mdr.nims.go.jp/filesets/e3508a5f-8fa1-4ac3-9793-4f6744226daf.md))

## Id

f73b46ca-ebfa-495d-b6a8-0f40495a9523

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-15T05:51:59.339449Z

## Updated at

2025-12-15T06:16:15.142962Z

## Published at

2025-12-19T05:11:37.647645Z

## Doi



## First published url

https://doi.org/10.2355/tetsutohagane.tetsu-2025-042

## Date published

2025-12-15

## Recorded date published

2025

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Evaluation of Residual Stress Distribution in Linear Friction Welded Steel
    Joint <i>via</i> Neutron Diffraction Mapping Measurement
  title_type: original
  lang: en

## Description

- description: In this study, neutron diffraction mapping was performed on linear
    friction welded joints of a 12 mm thick high-phosphorus weathering steel (SPA-H)
    to evaluate the distribution of residual stress, dislocation density and crystallographic
    orientation. Linear friction welding (LFW) was conducted under two different applied
    pressures (100 MPa and 250 MPa). The welded interface in both joints primarily
    consisted of refined ferrite, along with small amounts of retained austenite and
    martensite, suggesting that peak temperatures during welding exceeded the A1 point.
    However, the joint fabricated under 250 MPa exhibited a lower welding temperature.
    Grains were elongated along the oscillation direction (OD) at the specimen edges,
    while they were equiaxed at the center. Additionally, inhomogeneous microstructural
    distributions were observed near the interface along OD. Both joints exhibited
    high tensile residual stresses in all directions at the center of welding interface,
    whereas compressive residual stresses were introduced along the longitudinal direction
    (LD) near the surface in the OD. The applied pressure had minimal influence on
    the overall trend of the residual stress distribution within the tested welding
    conditions. Dislocation density was elevated at the weld interface compared to
    the base metal, with a more pronounced increase under the higher applied pressure.
    This is attributed to suppressed dynamic recovery caused by the lower welding
    temperature at higher pressure. Finally, strong texture formation was observed
    at the welding interface due to plastic flow during welding. The applied pressure
    had only a limited effect on texture development.
  description_type: abstract
  lang: und

## Creator

- name: Takayuki Yamashita
  role: author
  orcid: https://orcid.org/0009-0003-2849-8074
- name: Tomoya Nagira
  role: author
  orcid: https://orcid.org/0000-0002-2415-0623
- name: Wu Gong
  role: author
  orcid: https://orcid.org/0000-0003-3721-2528
- name: Takuro Kawasaki
  role: author
  orcid: https://orcid.org/0000-0002-1878-6799
- name: Stefanus Harjo
  role: author
  orcid: https://orcid.org/0000-0001-7386-2398
- name: Kohsaku Ushioda
  role: author
  orcid: https://orcid.org/0000-0002-1871-2968
- name: Hidetoshi Fujii
  role: author
  orcid: https://orcid.org/0000-0002-5023-3844

## Contact agent



## Publisher

organization: Iron and Steel Institute of Japan

## Managing organization



## Keyword

- subject: Linear friction welding
  schema: not_defined
- subject: neutron diffraction
  schema: not_defined
- subject: residual stress
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Tetsu-to-Hagane
  issn: '00211575'
  volume: '111'
  issue: '17'
  article_number: TETSU-2025-042

## Conference



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: e3508a5f-8fa1-4ac3-9793-4f6744226daf
  filename: 山下_鉄と鋼_Vol.111 No.17_1057-1071.pdf
  content_type: application/pdf
  size: 12903451
  md5: 6b52714a48b9a5bb9c306e2ac9887a51

## Thumbnail

fileset_id: e3508a5f-8fa1-4ac3-9793-4f6744226daf
filename: 山下_鉄と鋼_Vol.111 No.17_1057-1071.pdf