A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys

N. Birbilis; Y. M. Zhu; S. K. Kairy; M. A. Glenn; J. F. Nie; A. J. Morton; Y. Gonzalez-Garcia; H. Terryn; J. M.C. Mol; A. E. Hughes

doi:10.1016/j.corsci.2016.10.018

A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys

N. Birbilis^*, Y. M. Zhu, S. K. Kairy, M. A. Glenn, J. F. Nie, A. J. Morton, Y. Gonzalez-Garcia, H. Terryn, J. M.C. Mol, A. E. Hughes

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

74 Citations (Scopus)

Abstract

The role of constituent intermetallic particles in the pitting corrosion of aluminium (Al) alloys is well recognised. A definitive quantification of the role of unique constituent particles has contributed towards an enhanced understanding of Al-alloy corrosion, however the complexity of Al-alloy microstructures warrants further attention. In the present work we identify a unique intermetallic type in contemporary versions of AA2024-T3, which has a two-phase structure, defined by two distinct crystal types, and distinct compositions. Detailed characterisation is used to unambiguously define this constituent, along with its role in localised corrosion.

Original language	English
Pages (from-to)	160-171
Number of pages	12
Journal	Corrosion Science
Volume	113
DOIs	https://doi.org/10.1016/j.corsci.2016.10.018
Publication status	Published - 1 Dec 2016
Externally published	Yes

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10.1016/j.corsci.2016.10.018

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title = "A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys",

abstract = "The role of constituent intermetallic particles in the pitting corrosion of aluminium (Al) alloys is well recognised. A definitive quantification of the role of unique constituent particles has contributed towards an enhanced understanding of Al-alloy corrosion, however the complexity of Al-alloy microstructures warrants further attention. In the present work we identify a unique intermetallic type in contemporary versions of AA2024-T3, which has a two-phase structure, defined by two distinct crystal types, and distinct compositions. Detailed characterisation is used to unambiguously define this constituent, along with its role in localised corrosion.",

keywords = "A: aluminium, A: intermetallics, AA2024, B: STEM, B: TEM, C: pitting corrosion",

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doi = "10.1016/j.corsci.2016.10.018",

language = "English",

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T1 - A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys

AU - Birbilis, N.

AU - Zhu, Y. M.

AU - Kairy, S. K.

AU - Glenn, M. A.

AU - Nie, J. F.

AU - Morton, A. J.

AU - Gonzalez-Garcia, Y.

AU - Terryn, H.

AU - Mol, J. M.C.

AU - Hughes, A. E.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The role of constituent intermetallic particles in the pitting corrosion of aluminium (Al) alloys is well recognised. A definitive quantification of the role of unique constituent particles has contributed towards an enhanced understanding of Al-alloy corrosion, however the complexity of Al-alloy microstructures warrants further attention. In the present work we identify a unique intermetallic type in contemporary versions of AA2024-T3, which has a two-phase structure, defined by two distinct crystal types, and distinct compositions. Detailed characterisation is used to unambiguously define this constituent, along with its role in localised corrosion.

AB - The role of constituent intermetallic particles in the pitting corrosion of aluminium (Al) alloys is well recognised. A definitive quantification of the role of unique constituent particles has contributed towards an enhanced understanding of Al-alloy corrosion, however the complexity of Al-alloy microstructures warrants further attention. In the present work we identify a unique intermetallic type in contemporary versions of AA2024-T3, which has a two-phase structure, defined by two distinct crystal types, and distinct compositions. Detailed characterisation is used to unambiguously define this constituent, along with its role in localised corrosion.

KW - A: aluminium

KW - A: intermetallics

KW - AA2024

KW - B: STEM

KW - B: TEM

KW - C: pitting corrosion

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U2 - 10.1016/j.corsci.2016.10.018

DO - 10.1016/j.corsci.2016.10.018

M3 - Article

SN - 0010-938X

VL - 113

SP - 160

EP - 171

JO - Corrosion Science

JF - Corrosion Science

ER -

A closer look at constituent induced localised corrosion in Al-Cu-Mg alloys

Abstract

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