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Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance

Giovanni Alparone, James Sullivan Orcid Logo, Christopher Mills Orcid Logo, James Edy, David Penney Orcid Logo

Materials, Volume: 17, Issue: 23, Start page: 5837

Swansea University Authors: Giovanni Alparone, James Sullivan Orcid Logo, David Penney Orcid Logo

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DOI (Published version): 10.3390/ma17235837

Abstract

Galvanising pot roll bearings are subjected to severe deterioration due to the corrosion of the bearing materials in liquid Zn, resulting in maintenance stops that can cost thousands of pounds per hour in downtime. Dynamic wear testing in molten Zn-Al and Zn-Al-Mg was conducted to assess the corrosi...

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Published in: Materials
ISSN: 1996-1944
Published: MDPI AG 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa68393
first_indexed 2024-11-29T19:47:12Z
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spelling 2025-01-20T13:09:22.0885216 v2 68393 2024-11-29 Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance cb6fbac581782d40bece69ca22ce041a Giovanni Alparone Giovanni Alparone true false 40e32d66748ab74184a31207ab145708 0000-0003-1018-773X James Sullivan James Sullivan true false 869becc35438853f2bca0044df467631 0000-0002-8942-8067 David Penney David Penney true false 2024-11-29 Galvanising pot roll bearings are subjected to severe deterioration due to the corrosion of the bearing materials in liquid Zn, resulting in maintenance stops that can cost thousands of pounds per hour in downtime. Dynamic wear testing in molten Zn-Al and Zn-Al-Mg was conducted to assess the corrosion and wear resistance of three material pairs using a bespoke testing rig. The materials investigated in this study were Wallex6TM coated with WC-Co, stainless steel 316L coated with Al2O3, and as-received Wallex6TM and Wallex4TM alloys. It was found that only the Al2O3 coating remained unreactive in Zn alloy, whereas the materials containing Co were corroded, as evidenced by the formation of intermetallic compounds containing Al-Co-Zn-Fe. The results also highlighted that the dissolution of the Co matrix and diffusion of Zn and Al from the bath occurred in Wallex6TM and Wallex4TM. However, the diffusion of Zn into the WallexTM alloys was reduced by approximately 60% in the Zn-Al-Mg bath compared to Zn-Al. The wear scars were analysed to determine the wear coefficient of the worn specimens. Out of the three material couplings investigated in this study, minimal wear damage in both Zn-Al and Zn-Al-Mg was only obtained by pairing Wallex6TM with Al2O3 coatings. Journal Article Materials 17 23 5837 MDPI AG 1996-1944 ceramics; corrosion; wear testing; galvanising pot journal bearings; continuous galvanising; galvanising pot hardware 28 11 2024 2024-11-28 10.3390/ma17235837 COLLEGE NANME COLLEGE CODE Swansea University External research funder(s) paid the OA fee (includes OA grants disbursed by the Library) This project was supported by the Engineering and Physical Sciences Research Council (grant ref: EP/V519601) with Tata Steel. 2025-01-20T13:09:22.0885216 2024-11-29T12:20:49.4819359 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Giovanni Alparone 1 James Sullivan 0000-0003-1018-773X 2 Christopher Mills 0000-0002-2906-4978 3 James Edy 4 David Penney 0000-0002-8942-8067 5 68393__33003__61ce36309f0a439c8a1010d4dbbb05f6.pdf 68393.VoR.pdf 2024-11-29T12:25:22.1071268 Output 38995356 application/pdf Version of Record true © 2024 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. true eng https://creativecommons.org/licenses/by/4.0/
title Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
spellingShingle Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
Giovanni Alparone
James Sullivan
David Penney
title_short Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
title_full Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
title_fullStr Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
title_full_unstemmed Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
title_sort Dynamic Testing of Materials for Galvanising Pot Roll Bearings with Improved Performance
author_id_str_mv cb6fbac581782d40bece69ca22ce041a
40e32d66748ab74184a31207ab145708
869becc35438853f2bca0044df467631
author_id_fullname_str_mv cb6fbac581782d40bece69ca22ce041a_***_Giovanni Alparone
40e32d66748ab74184a31207ab145708_***_James Sullivan
869becc35438853f2bca0044df467631_***_David Penney
author Giovanni Alparone
James Sullivan
David Penney
author2 Giovanni Alparone
James Sullivan
Christopher Mills
James Edy
David Penney
format Journal article
container_title Materials
container_volume 17
container_issue 23
container_start_page 5837
publishDate 2024
institution Swansea University
issn 1996-1944
doi_str_mv 10.3390/ma17235837
publisher MDPI AG
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
active_str 0
description Galvanising pot roll bearings are subjected to severe deterioration due to the corrosion of the bearing materials in liquid Zn, resulting in maintenance stops that can cost thousands of pounds per hour in downtime. Dynamic wear testing in molten Zn-Al and Zn-Al-Mg was conducted to assess the corrosion and wear resistance of three material pairs using a bespoke testing rig. The materials investigated in this study were Wallex6TM coated with WC-Co, stainless steel 316L coated with Al2O3, and as-received Wallex6TM and Wallex4TM alloys. It was found that only the Al2O3 coating remained unreactive in Zn alloy, whereas the materials containing Co were corroded, as evidenced by the formation of intermetallic compounds containing Al-Co-Zn-Fe. The results also highlighted that the dissolution of the Co matrix and diffusion of Zn and Al from the bath occurred in Wallex6TM and Wallex4TM. However, the diffusion of Zn into the WallexTM alloys was reduced by approximately 60% in the Zn-Al-Mg bath compared to Zn-Al. The wear scars were analysed to determine the wear coefficient of the worn specimens. Out of the three material couplings investigated in this study, minimal wear damage in both Zn-Al and Zn-Al-Mg was only obtained by pairing Wallex6TM with Al2O3 coatings.
published_date 2024-11-28T05:48:54Z
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