# Dual grain size-effects on hydrogen-assisted fatigue crack growth in 1 GPa-class medium-carbon martensitic steel

https://mdr.nims.go.jp/datasets/e512382d-0caa-4e20-979a-a575d63b7d72

## File

- [Manuscript_Revised_Clean.pdf](https://mdr.nims.go.jp/filesets/10926359-3827-4e76-9197-341db32dc887/download) ([Detail](https://mdr.nims.go.jp/filesets/10926359-3827-4e76-9197-341db32dc887.md))
- [Supplementary Materials.pdf](https://mdr.nims.go.jp/filesets/90982be0-94f6-4ace-8a35-24abf5ae9dce/download) ([Detail](https://mdr.nims.go.jp/filesets/90982be0-94f6-4ace-8a35-24abf5ae9dce.md))

## Id

e512382d-0caa-4e20-979a-a575d63b7d72

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-08T07:00:27.306009Z

## Updated at

2025-09-08T23:30:40.956888Z

## Published at

2025-09-08T23:17:59.056758Z

## Doi

https://doi.org/10.48505/nims.4648

## First published url

https://doi.org/10.1016/j.ijhydene.2023.08.317

## Date published

2023-09-09

## Recorded date published

2024-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Dual grain size-effects on hydrogen-assisted fatigue crack growth in 1 GPa-class
    medium-carbon martensitic steel
  title_type: original
  lang: en

## Description

- description: The influence of prior austenite grain (PAG) size ranging from 6 to
    90 μm on the fatigue crack growth (FCG) of a tempered 0.41%C lath martensitic
    steel was investigated in a 90 MPa H2 gas environment at ambient temperature.
    Under the presence of H, severe FCG accelerations accompanying intergranular (IG)
    cracking along PAG boundaries as well as quasi-cleavage (QC) fracture along martensite
    block boundaries and {011} crystallographic planes were systematically found.
    Smaller PAG mitigated the acceleration at a relatively high-stress intensity via
    suppressing IG cracking. However, PAG refinement instead escalated the acceleration
    at a low-stress intensity factor where QC facture prevailed. This inverse grain
    size effect was discussed in terms of the plasticity criterion in triggering QC
    and its possible dependence on the microstructural length scale.
  description_type: abstract
  lang: und

## Creator

- 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: Kazuhiro Kuriyama
  role: author
- name: Motomichi Koyama
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Hydrogen embrittlement
  schema: not_defined
- subject: Fatigue
  schema: not_defined
- subject: Fracture
  schema: not_defined
- subject: Martensitic steels
  schema: not_defined
- subject: Grain size
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-09-09
end_date: 2025-09-09

## Journal

- title: International Journal of Hydrogen Energy
  issn: '03603199'
  volume: 50,Part A
  start_page: 108
  end_page: 115

## Conference



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Computational method



## Energy level/transition state



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## Fileset

- id: 10926359-3827-4e76-9197-341db32dc887
  filename: Manuscript_Revised_Clean.pdf
  content_type: application/pdf
  size: 1699391
  md5: 6c791786bcd7ef3201412b11baca10c9
- id: 90982be0-94f6-4ace-8a35-24abf5ae9dce
  filename: Supplementary Materials.pdf
  content_type: application/pdf
  size: 541596
  md5: 9560e8a1f0826e6e1860115bbecf8f3e

## Thumbnail

fileset_id: 10926359-3827-4e76-9197-341db32dc887
filename: Manuscript_Revised_Clean.pdf