# Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing on thermally activated hydrogen-dislocation interaction

https://mdr.nims.go.jp/datasets/0443394c-03ae-4c42-9b13-88b74eaa36dc

## File

- [Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing on thermally activated hydrogen-dislocation interaction.pdf](https://mdr.nims.go.jp/filesets/6dcc3997-55b2-4ec5-8af0-0a89707a4f3c/download) ([Detail](https://mdr.nims.go.jp/filesets/6dcc3997-55b2-4ec5-8af0-0a89707a4f3c.md))

## Id

0443394c-03ae-4c42-9b13-88b74eaa36dc

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-01-09T01:48:32.810276Z

## Updated at

2025-01-09T07:31:04.521367Z

## Published at

2025-01-20T03:31:02.432500Z

## Doi



## First published url

https://doi.org/10.1080/14686996.2024.2436345

## Date published

2025-12-31

## Recorded date published

2025-12-31

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing
    on thermally activated hydrogen-dislocation interaction
  title_type: original
  lang: en

## Description

- description: 'Hydrogen-assisted (HA) fatigue crack growth (FCG) occurs in ferritic
    steels, wherein H-dislocation interaction plays a vital role. We aim to model
    the HAFCG mechanism based on the obstruction of dislocations within the crack
    tip zone. Our modeling framework is as follows: H is condensed into crack tip
    and trapped by dislocations; these H significantly decrease dislocation mobility;
    stress relief via crack blunting is suppressed; localized brittle fracture triggers
    HAFCG. This model was substantiated experimentally in H2 gas at various load frequencies
    and temperatures. Theoretical formulations were established considering the thermal
    equilibrium of H-trapping and dislocation breakaway from the H atmosphere.'
  description_type: abstract
  lang: und

## Creator

- name: Osamu Takakuwa
  role: author
- name: Yuhei Ogawa
  role: author
  orcid: https://orcid.org/0000-0003-2713-9822

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: Hydrogen embrittlement
  schema: not_defined
- subject: Fatigue crack growth
  schema: not_defined
- subject: Ferritic steel
  schema: not_defined
- subject: Dislocation
  schema: not_defined

## Rights

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

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## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Science and Technology of Advanced Materials
  issn: '14686996'
  volume: '26'
  issue: '1'

## Conference



## Related item



## Funding

- funder_name: JSPS KAKENHI

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 6dcc3997-55b2-4ec5-8af0-0a89707a4f3c
  filename: Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing
    on thermally activated hydrogen-dislocation interaction.pdf
  content_type: application/pdf
  size: 12026442
  md5: 2ae7648ed65f7582083c3de0ed4e3c2c

## Thumbnail

fileset_id: 6dcc3997-55b2-4ec5-8af0-0a89707a4f3c
filename: Modeling hydrogen-assisted fatigue crack growth in low-carbon steel focusing
  on thermally activated hydrogen-dislocation interaction.pdf