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The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel

Natalie Wint, David Eaves, Geraint Williams, Hamilton McMurray

Corrosion Science, Volume: 179, Start page: 109168

Swansea University Authors: Natalie Wint, David Eaves, Geraint Williams, Hamilton McMurray

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DOI (Published version): 10.1016/j.corsci.2020.109168

Abstract

The effect of coating thickness and composition on the kinetics of acetic acid-induced filiform corrosion (FFC) on Zinc-Aluminium-Magnesium (ZAM) coated steel is investigated. Scribe defects are created in organic coatings applied to ∼10 μm coatings of varying composition (1−6 wt.%. Al, 1−3 wt. % Mg...

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Published in: Corrosion Science
ISSN: 0010-938X
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa55842
first_indexed 2020-12-07T11:36:16Z
last_indexed 2021-12-02T04:12:06Z
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spelling 2021-12-01T14:06:59.8587012 v2 55842 2020-12-07 The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel 5be5dcc4b97c78b3063e258add4fff5c Natalie Wint Natalie Wint true false cc1cde126100e4673b63bc8fe93f779e David Eaves David Eaves true false 0d8fc8d44e2a3c88ce61832f66f20d82 Geraint Williams Geraint Williams true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 2020-12-07 The effect of coating thickness and composition on the kinetics of acetic acid-induced filiform corrosion (FFC) on Zinc-Aluminium-Magnesium (ZAM) coated steel is investigated. Scribe defects are created in organic coatings applied to ∼10 μm coatings of varying composition (1−6 wt.%. Al, 1−3 wt. % Mg), and fixed composition (Zn-1.5 wt. % Al- 1.5 wt.% Mg) but varying thickness (5−27 μm). FCC decreases with increasing Al (at fixed wt. % Mg) and thickness. A linear trend exists between thickness and iron exposure time. Findings are consistent with FFC advancing via a penetrative coating mechanism whereby exposed iron couples to the coating. Journal Article Corrosion Science 179 109168 Elsevier BV 0010-938X A Steel, A Magnesium, A Metal coatings, C atmospheric corrosion, C polymer coatings 1 2 2021 2021-02-01 10.1016/j.corsci.2020.109168 COLLEGE NANME COLLEGE CODE Swansea University 2021-12-01T14:06:59.8587012 2020-12-07T11:33:57.1336703 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Natalie Wint 1 David Eaves 2 Geraint Williams 3 Hamilton McMurray 4 55842__18831__194dd4e9c78542be9a361abffcb463df.pdf 55842.pdf 2020-12-07T11:36:01.4768382 Output 2315813 application/pdf Accepted Manuscript true 2021-11-26T00:00:00.0000000 ©2020 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng http://creativecommons.org/licenses/by-nc-nd/4.0/
title The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
spellingShingle The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
Natalie Wint
David Eaves
Geraint Williams
Hamilton McMurray
title_short The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
title_full The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
title_fullStr The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
title_full_unstemmed The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
title_sort The effect of composition and thickness on the mechanism and kinetics of filiform corrosion occurring on zinc-aluminium-magnesium coated steel
author_id_str_mv 5be5dcc4b97c78b3063e258add4fff5c
cc1cde126100e4673b63bc8fe93f779e
0d8fc8d44e2a3c88ce61832f66f20d82
56fc1b17ffc3bdf6039dc05c6eba7f2a
author_id_fullname_str_mv 5be5dcc4b97c78b3063e258add4fff5c_***_Natalie Wint
cc1cde126100e4673b63bc8fe93f779e_***_David Eaves
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
author Natalie Wint
David Eaves
Geraint Williams
Hamilton McMurray
author2 Natalie Wint
David Eaves
Geraint Williams
Hamilton McMurray
format Journal article
container_title Corrosion Science
container_volume 179
container_start_page 109168
publishDate 2021
institution Swansea University
issn 0010-938X
doi_str_mv 10.1016/j.corsci.2020.109168
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
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description The effect of coating thickness and composition on the kinetics of acetic acid-induced filiform corrosion (FFC) on Zinc-Aluminium-Magnesium (ZAM) coated steel is investigated. Scribe defects are created in organic coatings applied to ∼10 μm coatings of varying composition (1−6 wt.%. Al, 1−3 wt. % Mg), and fixed composition (Zn-1.5 wt. % Al- 1.5 wt.% Mg) but varying thickness (5−27 μm). FCC decreases with increasing Al (at fixed wt. % Mg) and thickness. A linear trend exists between thickness and iron exposure time. Findings are consistent with FFC advancing via a penetrative coating mechanism whereby exposed iron couples to the coating.
published_date 2021-02-01T07:27:13Z
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