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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 Orcid Logo, David Eaves, Geraint Williams Orcid Logo, Hamilton McMurray

Corrosion Science, Volume: 179, Start page: 109168

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

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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
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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 0000-0002-9229-5728 Natalie Wint Natalie Wint true false cc1cde126100e4673b63bc8fe93f779e David Eaves David Eaves true false 0d8fc8d44e2a3c88ce61832f66f20d82 0000-0002-3399-5142 Geraint Williams Geraint Williams true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 2020-12-07 GENG 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 General Engineering COLLEGE CODE GENG 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 0000-0002-9229-5728 1 David Eaves 2 Geraint Williams 0000-0002-3399-5142 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
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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
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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 2021-02-01T04:05:58Z
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