# Enhancing hydrogen embrittlement resistance in high-strength martensitic steels via tailoring variant selection at prior austenite grain boundaries

https://mdr.nims.go.jp/datasets/ff951668-1ef9-4b54-b63f-223dd5f67246

## File

- [Enhancing hydrogen embrittlement resistance in high-strength martensitic steels via tailoring variant selection at prior austenite grain boundaries.pdf](https://mdr.nims.go.jp/filesets/57ea5509-60ae-4007-8f76-a0abea1c644c/download) ([Detail](https://mdr.nims.go.jp/filesets/57ea5509-60ae-4007-8f76-a0abea1c644c.md))

## Id

ff951668-1ef9-4b54-b63f-223dd5f67246

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-05T01:48:07.805235Z

## Updated at

2026-01-05T01:52:39.771289Z

## Published at

2026-01-06T23:24:33.524583Z

## Doi



## First published url

https://doi.org/10.1016/j.scriptamat.2025.117157

## Date published

2025-12-30

## Recorded date published

2026-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Enhancing hydrogen embrittlement resistance in high-strength martensitic
    steels via tailoring variant selection at prior austenite grain boundaries
  title_type: original
  lang: en

## Description

- description: 'This study presents a thermomechanical processing strategy to improve
    the resistance to hydrogen embrittlement (HE) in martensitic steels through controlling
    variant selection at prior austenite grain boundaries (PAGBs), while retaining
    ultrahigh tensile strength (>1.5 GPa). Under identical hydrogen-charging conditions,
    the 10% hot-compressed specimen exhibited the highest HE resistance, correlating
    with its largest fraction of low-angle PAGB segments. Misorientation-distribution
    analysis and tensile tests revealed a non-monotonic dependence of compressive
    strain: an optimal compressive level maximized the beneficial stress-assisted
    variant selection at PAGBs, whereas excessive strains promoted self-accommodation
    of transformation strain in the work-hardened austenite, diminishing the beneficial
    effect. The improved HE resistance stems from reduced hydrogen trapping, enhanced
    strain-dissipating slip transfer, and increased cohesive energy at PAGBs. Tailoring
    variant selection at PAGBs through this simple process thus provides an industry-feasible
    route to hydrogen-resistant high-strength martensitic steels.'
  description_type: abstract
  lang: und

## Creator

- name: Xiaodong Lan
  role: author
  orcid: https://orcid.org/0000-0002-7075-1753
- name: Kazuho Okada
  role: author
  orcid: https://orcid.org/0000-0003-0183-4528
- name: Rintaro Ueji
  role: author
  orcid: https://orcid.org/0000-0001-6969-3165
- name: Akinobu Shibata
  role: author
  orcid: https://orcid.org/0000-0001-8577-6411

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Martensitic steels
  schema: not_defined
- subject: Thermomechanical processing
  schema: not_defined
- subject: Variant selection
  schema: not_defined
- subject: Hydrogen embrittlement
  schema: not_defined
- subject: Intergranular fracture
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Scripta Materialia
  issn: '13596462'
  volume: '274'
  article_number: '117157'

## Conference



## Related item



## Funding

- identifier: JP22K18910, JP23H01717, JP23K13541, and JP24K01221
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMXP1122684766
  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: 57ea5509-60ae-4007-8f76-a0abea1c644c
  filename: Enhancing hydrogen embrittlement resistance in high-strength martensitic
    steels via tailoring variant selection at prior austenite grain boundaries.pdf
  content_type: application/pdf
  size: 7083288
  md5: 6d3c7edd8186196506df1f2309d447ae

## Thumbnail

fileset_id: 57ea5509-60ae-4007-8f76-a0abea1c644c
filename: Enhancing hydrogen embrittlement resistance in high-strength martensitic
  steels via tailoring variant selection at prior austenite grain boundaries.pdf