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The influence of chromium oxide coating weight on filiform corrosion of trivalent chromium coatings for packaging steel
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Hamilton McMurray
Electrochimica Acta, Volume: 523, Start page: 145943
Swansea University Authors:
Ellen Bluett, Mathew Dodd, Natalie Wint, Eifion Jewell , Hamilton McMurray
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© 2025 The Authors. This is an open access article distributed under the terms of the Creative Commons CC-BY license.
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DOI (Published version): 10.1016/j.electacta.2025.145943
Abstract
This paper describes a systematic study into the initiation and propagation of filiform corrosion (FFC) on industrially important Cr(III) coatings applied to packaging steel. FFC was initiated by introducing an artificial scribe into a model PVB organic coating which had been applied to the metallic...
| Published in: | Electrochimica Acta |
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| ISSN: | 0013-4686 1873-3859 |
| Published: |
Elsevier BV
2025
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa69055 |
| Abstract: |
This paper describes a systematic study into the initiation and propagation of filiform corrosion (FFC) on industrially important Cr(III) coatings applied to packaging steel. FFC was initiated by introducing an artificial scribe into a model PVB organic coating which had been applied to the metallic coatings. The FFC corroded area was shown to decrease at increased values of Cr(III) oxide coating weight. This was explained largely due to the insulating properties of Cr(III) oxide. Chloride entrapment within the tail caused filament tapering. FFC was shown not to initiate on traditional electro chromium coated steel (ECCS). |
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| Keywords: |
A. Steel; A. Metal coatings; C. Oxide coatings; C. Atmospheric corrosion; C. Polymer coatings |
| College: |
Faculty of Science and Engineering |
| Funders: |
The authors would like to thank the Materials and Manufacturing Academy (M2A), Swansea University, funded from the European Social Fund via the Welsh Government (c80816), the Engineering and Physical Sciences Research Council via the COATED 2 Centre for Doctoral Training (CDT, Grant Ref: EP/L015099/1), the Welsh European Funding Office (WEFO) and Tata Steel UK Ltd that has made this research possible. The authors would also like to thank Dr Christian Mescall, Tata Steel, Research and Development, and Dr Tom Dunlop, Advanced Imaging of Materials (AIM), Swansea University, for their help with this project. |
| Start Page: |
145943 |