A closer inspection of a grain boundary immune to intergranular corrosion in a sensitised Al-Mg alloy

Ruifeng Zhang, Yao Qiu, Yuanshen Qi, Nick Birbilis

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

The intergranular corrosion of Al-Mg alloys arises from sensitisation due to thermal exposure. Here, a protected low angle (8.7°) grain boundary which hinders the intergranular corrosion propagation in a sensitised (150°/7 d) Al-Mg alloy was studied in detail. Discrete β-phase was observed on this protected boundary, but with a lower continuity compared to the other fully (or partially) dissolved grain boundaries. The results herein seek to unify the relationship between β-phase continuity and grain boundary misorientation angle as critical for intergranular corrosion propagation in the studied alloy.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalCorrosion Science
Volume133
DOIs
Publication statusPublished - 1 Apr 2018

Keywords

  • A. Alloy
  • A. Aluminium
  • B. SEM
  • B. TEM
  • C. Intergranular corrosion

Cite this

@article{13c83bc089ec416dbfe19439fa84ff85,
title = "A closer inspection of a grain boundary immune to intergranular corrosion in a sensitised Al-Mg alloy",
abstract = "The intergranular corrosion of Al-Mg alloys arises from sensitisation due to thermal exposure. Here, a protected low angle (8.7°) grain boundary which hinders the intergranular corrosion propagation in a sensitised (150°/7 d) Al-Mg alloy was studied in detail. Discrete β-phase was observed on this protected boundary, but with a lower continuity compared to the other fully (or partially) dissolved grain boundaries. The results herein seek to unify the relationship between β-phase continuity and grain boundary misorientation angle as critical for intergranular corrosion propagation in the studied alloy.",
keywords = "A. Alloy, A. Aluminium, B. SEM, B. TEM, C. Intergranular corrosion",
author = "Ruifeng Zhang and Yao Qiu and Yuanshen Qi and Nick Birbilis",
year = "2018",
month = "4",
day = "1",
doi = "10.1016/j.corsci.2018.01.009",
language = "English",
volume = "133",
pages = "1--5",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier",

}

A closer inspection of a grain boundary immune to intergranular corrosion in a sensitised Al-Mg alloy. / Zhang, Ruifeng; Qiu, Yao; Qi, Yuanshen; Birbilis, Nick.

In: Corrosion Science, Vol. 133, 01.04.2018, p. 1-5.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - A closer inspection of a grain boundary immune to intergranular corrosion in a sensitised Al-Mg alloy

AU - Zhang, Ruifeng

AU - Qiu, Yao

AU - Qi, Yuanshen

AU - Birbilis, Nick

PY - 2018/4/1

Y1 - 2018/4/1

N2 - The intergranular corrosion of Al-Mg alloys arises from sensitisation due to thermal exposure. Here, a protected low angle (8.7°) grain boundary which hinders the intergranular corrosion propagation in a sensitised (150°/7 d) Al-Mg alloy was studied in detail. Discrete β-phase was observed on this protected boundary, but with a lower continuity compared to the other fully (or partially) dissolved grain boundaries. The results herein seek to unify the relationship between β-phase continuity and grain boundary misorientation angle as critical for intergranular corrosion propagation in the studied alloy.

AB - The intergranular corrosion of Al-Mg alloys arises from sensitisation due to thermal exposure. Here, a protected low angle (8.7°) grain boundary which hinders the intergranular corrosion propagation in a sensitised (150°/7 d) Al-Mg alloy was studied in detail. Discrete β-phase was observed on this protected boundary, but with a lower continuity compared to the other fully (or partially) dissolved grain boundaries. The results herein seek to unify the relationship between β-phase continuity and grain boundary misorientation angle as critical for intergranular corrosion propagation in the studied alloy.

KW - A. Alloy

KW - A. Aluminium

KW - B. SEM

KW - B. TEM

KW - C. Intergranular corrosion

UR - http://www.scopus.com/inward/record.url?scp=85040722789&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2018.01.009

DO - 10.1016/j.corsci.2018.01.009

M3 - Article

VL - 133

SP - 1

EP - 5

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

ER -