# Significance of fracture toughness for linear friction welded joint of weathering steel

https://mdr.nims.go.jp/datasets/4c61bb5a-11cd-4059-8b7b-efc46ac75b60

## File

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## Id

4c61bb5a-11cd-4059-8b7b-efc46ac75b60

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-21T00:13:50.172738Z

## Updated at

2025-03-03T07:30:48.911573Z

## Published at

2025-03-03T07:30:49.007843Z

## Doi



## First published url

https://doi.org/10.1007/s40194-024-01890-7

## Date published

2024-12-26

## Recorded date published

2025-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Significance of fracture toughness for linear friction welded joint of weathering
    steel
  title_type: original
  lang: en

## Description

- description: This paper examined the characteristics and the significance of fracture
    toughness for LFW (Linear Friction Welding) joints of weathering steel SPA-H processed
    under different joining conditions to control maximum temperature during LFW process.
    Two types of LFW joint were prepared; one was jointed under higher compressive
    pressure so as a maximum temperature during LFW process to be lower than the A1-transformation
    temperature (A1-LFW), and the other was jointed under lower compressive pressure
    to be higher than the A3-transformation temperature (A3-LFW). The fracture toughness
    of both joints where a crack was located at the joint interface exhibited higher
    value than that of the heat affected zone of CO2 gas-arc welds for the same steel.
    These results indicated that the LFW was more effective for the joining of weathering
    steel compared with a conventional arc-welding in terms of fracture toughness.
    However, A1-LFW exhibited lower fracture toughness (critical CTOD) than that of
    base metal or A3-LFW. Thus, the significance of the test results was discussed
    from mechanical and metallurgical viewpoints. The fracture toughness for A1-LFW
    found to be deteriorated due to work hardening associated with compressive plastic
    straining during LFW under higher compressive pressure, where the metal heated
    under A1-temperature was not completely ejected by friction but remined around
    the joint interface. On the other hand, the deterioration of fracture toughness
    for A3-LFW was found to be caused by hardening due to bainitic transformation
    near joint interface, whereas the narrowness of hardened region provided a little
    bit higher toughness than intrinsic toughness of the transformed phase due to
    plastic constraint loss.
  description_type: abstract
  lang: und

## Creator

- name: Kazuma Shimizu
  role: author
  orcid: https://orcid.org/0000-0001-8723-5707
- name: Shota Nakayama
  role: author
- name: Hiroto Shoji
  role: author
- name: Takumi Kawakubo
  role: author
- name: Tomoya Nagira
  role: author
  orcid: https://orcid.org/0000-0002-2415-0623
  organization: National Institute for Materials Science
- name: Mitsuru Ohata
  role: author
- name: Hidetoshi Fujii
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Linear friction weld
  schema: not_defined
- subject: Fracture toughness
  schema: not_defined
- subject: Plastic constraint
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Welding in the World
  issn: '00432288'
  volume: '69'
  issue: '3'
  start_page: 739
  end_page: 750

## Conference



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## Funding

- identifier: ISIJ Research Project
  funder_name: Iron and Steel Institute of Japan
- funder_name: Osaka University

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## Fileset

- id: eef1f6d2-84bc-4f10-ae62-f2a4bfec6fae
  filename: welding in the world.pdf
  content_type: application/pdf
  size: 5981613
  md5: 8de5695bd130c30292a0692a194637d0

## Thumbnail

fileset_id: eef1f6d2-84bc-4f10-ae62-f2a4bfec6fae
filename: welding in the world.pdf