# A Comparative Investigation of Corrosion Behavior and the Concurrent Acoustic Emission of AZ31 Mg Alloy under NaCl and Na<sub>2</sub>SO<sub>4</sub> Solution Droplets

https://mdr.nims.go.jp/datasets/633040c4-0071-4cb7-aa48-16eaeaff3fd0

## File

- [65_MT-M2023190.pdf](https://mdr.nims.go.jp/filesets/133e6128-9634-4596-baeb-bcd19811a44d/download) ([Detail](https://mdr.nims.go.jp/filesets/133e6128-9634-4596-baeb-bcd19811a44d.md))

## Id

633040c4-0071-4cb7-aa48-16eaeaff3fd0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-06-04T02:59:12.064503Z

## Updated at

2024-06-05T07:30:13.153275Z

## Published at

2024-06-05T07:30:13.565068Z

## Doi



## First published url

https://doi.org/10.2320/matertrans.mt-m2023190

## Date published

2024-05-01

## Recorded date published

2024

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: A Comparative Investigation of Corrosion Behavior and the Concurrent Acoustic
    Emission of AZ31 Mg Alloy under NaCl and Na<sub>2</sub>SO<sub>4</sub> Solution
    Droplets
  title_type: original
  lang: en

## Description

- description: In this work, corrosion behavior and the concurrent acoustic emission
    (AE) signals of AZ31 alloy under NaCl and Na2 SO4 solution droplets were comparatively
    investigated in combination with in-situ optical microscopy observations. It was
    observed that after a short initial corrosion accompanied by the growth and rupture
    of H2 bubbles, the later corrosion behavior of AZ31 alloy mainly developed into
    filiform corrosion under NaCl solution droplet and pitting corrosion under Na2SO4
    solution droplet. AE signals were detected in both cases. In particular, AE parameters
    of amplitude and duration were found to well identify filiform and pitting corrosion.
    AE signals were mainly correlated with the observed evolution of H2 bubbles of
    different shapes and positions, i.e., regularly round bubbles grew and ruptured
    at the filament head near the metal surface during filiform corrosion; whereas
    irregularly-shaped bubbles grew and ruptured at the pit mouth during pitting corrosion.
  description_type: abstract
  lang: und

## Creator

- name: Kaige Wu
  role: author
- name: Kaita Ito
  role: author
  orcid: https://orcid.org/0000-0002-1438-6982
  organization: National Institute for Materials Science
- name: Manabu Enoki
  role: author

## Contact agent



## Publisher

organization: Japan Institute of Metals

## Managing organization



## Keyword

- subject: magnesium
  schema: not_defined
- subject: atmospheric corrosion
  schema: not_defined
- subject: filiform corrosion
  schema: not_defined
- subject: hydrogen bubble evolution
  schema: not_defined
- subject: acoustic emission
  schema: not_defined
- subject: pitting corrosion
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: MATERIALS TRANSACTIONS
  issn: '13475320'
  volume: '65'
  issue: '5'
  start_page: 587
  end_page: 596
  article_number: MT-M2023190

## Conference



## Related item



## Funding

- identifier: 21K14435
  funder_name: JSPS
  description: Real-time quantitatively assessing the corrosion-induced hydrogen trapping
    in metals

## 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: 133e6128-9634-4596-baeb-bcd19811a44d
  filename: 65_MT-M2023190.pdf
  content_type: application/pdf
  size: 7934506
  md5: 709fab81f574a1256b9a4fee518d6ebe

## Thumbnail

fileset_id: 133e6128-9634-4596-baeb-bcd19811a44d
filename: 65_MT-M2023190.pdf