# Ausformed high-strength low-alloy steel exhibits exceptional resistance to fatigue crack-growth in high-pressure hydrogen environments

https://mdr.nims.go.jp/datasets/fc165853-e6cb-499e-b510-d12b6f786363

## File

- [Redarce (2025)_Ausformed high-strength low-alloy steel exhibits exceptional resistance to fatigue crack-growth in high-pressure hydrogen environments.pdf](https://mdr.nims.go.jp/filesets/2a0f02ee-7774-4a62-86f3-45769145b25e/download) ([Detail](https://mdr.nims.go.jp/filesets/2a0f02ee-7774-4a62-86f3-45769145b25e.md))

## Id

fc165853-e6cb-499e-b510-d12b6f786363

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-01-20T05:44:12.662787Z

## Updated at

2025-01-20T07:30:27.636328Z

## Published at

2025-01-20T07:30:27.718981Z

## Doi



## First published url

https://doi.org/10.1016/j.ijfatigue.2025.108814

## Date published

2025-01-11

## Recorded date published

2025-4

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Ausformed high-strength low-alloy steel exhibits exceptional resistance to
    fatigue crack-growth in high-pressure hydrogen environments
  title_type: original
  lang: en

## Description

- description: 'Ausformed specimens of the chromium-molybdenum steel JIS-SCM440 were
    subjected to fatigue tests in both air and 90 MPa hydrogen gas. The results were
    compared with those of non-ausformed specimens of the same material with similar
    tensile strengths (≈ 950 MPa and ≈ 1050 MPa). The ausformed materials demonstrated
    excellent resistance to hydrogen-induced acceleration of fatigue crack-growth
    (FCG), effectively reducing the crack propagation rate under cyclic loading in
    hydrogen environments compared to their non-ausformed counterparts. They maintained
    an acceleration ratio (i.e., relative FCG rate in hydrogen with respect to that
    in air) within 10 to 40 times, an order of magnitude lower than that of the non-ausformed
    counterparts. Despite their high strength levels (i.e., tensile strengths greater
    than 900 MPa), the FCG rate in the ausformed materials was almost independent
    of loading frequency at a stress intensity factor range of 20 and 30 MPa·m1/2.
    Fractographic observations revealed that no intergranular fracture occurred in
    the ausformed materials, unlike in the non-ausformed ones. These findings suggest
    that two factors possibly caused the mitigation of FCG rate in hydrogen: (i) modification
    of the microstructure morphology, i.e., refinement and elongation, and (ii) an
    increase in the cohesive strength of interfaces under the influence of hydrogen.'
  description_type: abstract
  lang: und

## Creator

- name: Timothee Redarce
  role: author
  organization: Kyushu University
- name: Keiichiro Iwata
  role: author
  organization: Kyushu University
- name: Yuhei Ogawa
  role: author
  orcid: https://orcid.org/0000-0003-2713-9822
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kaneaki Tsuzaki
  role: author
  orcid: https://orcid.org/0000-0003-2400-7605
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Akinobu Shibata
  role: author
  orcid: https://orcid.org/0000-0001-8577-6411
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Hisao Matsunaga
  role: author
  organization: Kyushu University

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Hydrogen embrittlement
  schema: not_defined
- subject: Martensitic steel
  schema: not_defined
- subject: Fatigue crack growth
  schema: not_defined
- subject: Thermo-mechanical treatment
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: International Journal of Fatigue
  issn: '01421123'
  volume: '193'
  article_number: '108814'

## Conference



## Related item



## Funding

- funder_name: Government of Japan Ministry of Education Culture Sports Science and
    Technology

## 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: 2a0f02ee-7774-4a62-86f3-45769145b25e
  filename: Redarce (2025)_Ausformed high-strength low-alloy steel exhibits exceptional
    resistance to fatigue crack-growth in high-pressure hydrogen environments.pdf
  content_type: application/pdf
  size: 12910672
  md5: 118ea26438d80c7b3737a3aa0c826946

## Thumbnail

fileset_id: 2a0f02ee-7774-4a62-86f3-45769145b25e
filename: Redarce (2025)_Ausformed high-strength low-alloy steel exhibits exceptional
  resistance to fatigue crack-growth in high-pressure hydrogen environments.pdf