# Analysis of the influence of hydrogen on prismatic loops and dislocation dipole structure in an austenitic steel: Effect on stacking fault energy

https://mdr.nims.go.jp/datasets/b68dd33a-a3a8-497f-ad33-e38a9e635108

## File

- [Gutierrez-Urrutia_IJHE 180 (2025).pdf](https://mdr.nims.go.jp/filesets/bb7c7f9d-a120-4a76-a9cb-3edefa90b707/download) ([Detail](https://mdr.nims.go.jp/filesets/bb7c7f9d-a120-4a76-a9cb-3edefa90b707.md))

## Id

b68dd33a-a3a8-497f-ad33-e38a9e635108

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-10-03T06:17:33.182545Z

## Updated at

2025-10-21T07:05:19.107175Z

## Published at

2025-10-21T06:43:06.986399Z

## Doi



## First published url

https://doi.org/10.1016/j.ijhydene.2025.151741

## Date published

2025-10-01

## Recorded date published

2025-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Analysis of the influence of hydrogen on prismatic loops and dislocation
    dipole structure in an austenitic steel: Effect on stacking fault energy'
  title_type: original
  lang: en

## Description

- description: The influence of hydrogen on crystal defects (point defects and dislocations)
    determines effects such as hydrogen-induced localized plasticity and damage. One
    of the structural variables controlling these effects is the stacking fault energy.
    Experimental and computational studies indicate that hydrogen reduces its value,
    thereby increasing the partial dislocation spacing and influencing dislocation
    behavior. This study quantitatively investigates the influence of solute hydrogen
    (133 mass ppm) on prismatic loop and dislocation dipole structures in an austenitic
    steel by an approach based on scanning transmission electron microscopy (STEM)
    and anisotropic dislocation theory. The established method allows the estimation
    of the stacking fault energy with greater accuracy than approaches used in the
    literature. We show that hydrogen leads to several effects on crystal defects,
    increasing the average prismatic loop size and average dipole height of screw-type
    dipoles. The analysis of the dissociated dipole structure by a model based on
    anisotropic dislocation theory indicates that hydrogen reduces the stacking fault
    energy. We critically compare the present study with former reports in fcc materials
    and discuss the influence of hydrogen-charging conditions, imaging analysis method,
    and dislocation theory on the measurement of stacking fault energy. The effect
    of the present results on the deformation behavior is evaluated.
  description_type: abstract
  lang: und

## Creator

- name: Ivan Gutierrez-Urrutia
  role: author
  orcid: https://orcid.org/0000-0003-1438-3703
- name: Yuhei Ogawa
  role: author
  orcid: https://orcid.org/0000-0003-2713-9822
- name: Akinobu Shibata
  role: author
  orcid: https://orcid.org/0000-0001-8577-6411

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Austenitic steel
  schema: not_defined
- subject: Hydrogen
  schema: not_defined
- subject: Dislocation dipoles
  schema: not_defined
- subject: Stacking fault energy
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: International Journal of Hydrogen Energy
  issn: '03603199'
  volume: '180'
  article_number: '151741'

## Conference



## Related item



## Funding

- identifier: JP25K08261
  funder_name: Japan Society for the Promotion of Science

## 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



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## Fileset

- id: bb7c7f9d-a120-4a76-a9cb-3edefa90b707
  filename: Gutierrez-Urrutia_IJHE 180 (2025).pdf
  content_type: application/pdf
  size: 8397813
  md5: fb5d8f4941212346c489c732272bcc14

## Thumbnail

fileset_id: bb7c7f9d-a120-4a76-a9cb-3edefa90b707
filename: Gutierrez-Urrutia_IJHE 180 (2025).pdf