# Advancing the hydrogen tolerance of ultrastrong aluminum alloys via nanoprecipitate modification

https://mdr.nims.go.jp/datasets/bc4506eb-6615-41ea-a46d-bb4d2af90643

## File

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## Id

bc4506eb-6615-41ea-a46d-bb4d2af90643

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-30T05:32:56.698213Z

## Updated at

2025-01-06T05:01:18.400602Z

## Published at

2026-09-18T23:30:46.276450Z

## Doi

https://doi.org/10.48505/nims.5239

## First published url

https://doi.org/10.1016/j.corsci.2024.112471

## Date published

2024-09-19

## Recorded date published

2024-11

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Advancing the hydrogen tolerance of ultrastrong aluminum alloys via nanoprecipitate
    modification
  title_type: original
  lang: en

## Description

- description: Ultrastrong metallic alloys, possessing unparalleled load-bearing abilities,
    are coveted in many sectors, thus attracting growing research efforts. However,
    these alloys encounter persistent usability challenges posed by hydrogen embrittlement,
    which causes unpredictable fracture through crack initiation. Due to complex hydrogen-microstructure
    interactions and their exacerbation under high stress, advances in hydrogen resistance
    in ultrastrong materials are sparse throughout their long history. Herein, we
    report a quantum-mechanics-informed strategy for hydrogen tolerance enhancement
    in ultrafine-grain-hardened Al-Zn-Mg-Cu alloys, approaching their current strength
    limit of approximately 1 GPa. This method involves the incorporation of hydrogen-absorbing
    T-phase precipitates into nanograins, to substantially reduce hydrogen coverage
    at potential crack initiation sites. We demonstrate, via synchrotron radiation
    X-ray micro-/nano-tomography, scanning transmission electron microscopy, and atom
    probe tomography, that nanoprecipitates successfully withstand shear strains exceeding
    1000 and are exploitable essentials for ultra strength-hydrogen synergy, contrasting
    their often-assumed secondary roles in nanocrystalline alloys due to possible
    strain-induced dissolution, which has intuitively excluded exploring them as central
    elements. Our approach potentially inspires new hydrogen- resisting alloys across
    a broad strength-composition space.
  description_type: abstract
  lang: und

## Creator

- name: Yafei Wang
  role: author
- name: Jianwei Tang
  role: author
- name: Hiro Fujihara
  role: author
- name: Nozomu Adachi
  role: author
- name: Yoshikazu Todaka
  role: author
- name: Yuantao Xu
  role: author
- name: Mainak Saha
  role: author
  orcid: https://orcid.org/0000-0001-8979-457X
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Taisuke Sasaki
  role: author
  orcid: https://orcid.org/0000-0002-5952-7638
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kazuyuki Shimizu
  role: author
- name: Kyosuke Hirayama
  role: author
- name: Akihisa Takeuchi
  role: author
- name: Masayuki Uesugi
  role: author
- name: Hiroyuki Toda
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Aluminum alloys
  schema: not_defined
- subject: Precipitates
  schema: not_defined
- subject: Severe plastic deformation
  schema: not_defined
- subject: Hydrogen embrittlement
  schema: not_defined
- subject: X-ray tomography
  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: 2024-09-19
end_date: 2026-09-19

## Journal

- title: Corrosion Science
  issn: '0010938X'
  volume: '240'
  article_number: '112471'

## Conference



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## Funding

- funder_name: Core Research for Evolutional Science and Technology

## Instrument



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## Measurement method



## Specimen



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## Fileset

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  filename: 24-8-28-manuscript.docx
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- id: 8fc14ce8-6c70-4918-8588-b6afab977f88
  filename: 24-8-28-supplementary.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
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  md5: ec05dede8df35b3ff73e3d99074cb07c

## Thumbnail

fileset_id: d6bd95aa-ac9c-4c38-b792-c76841f5045f
filename: 24-8-28-manuscript.docx