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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dandekar, Tushar
University of Portsmouth
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Microstructural damage assessment in alloy 617M near high cycle fatigue threshold at elevated temperaturecitations
- 2024Probing the temperature field and residual stress transformation in multi-track, multi-layered systemcitations
- 2024Enhancing Ni–Ti shape memory alloy difusion bonding with Ti/Ni reactive multilayer foilscitations
- 2024The corrosion mechanism of grey cast-iron yacht keel in marine environment during long-term exposure
- 2023Insights into the influence of cold rolling and accelerated isothermal aging on microstructure evolution, corrosion performance, σ precipitation and its kinetics in a low molybdenum Fe-21Cr-5Mn-1.5Ni alloycitations
- 2023Deciphering the effect of sea water on corrosion behavior of epoxy/graphite- flakes composite coated LDX 2101 stainless steelcitations
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article
The corrosion mechanism of grey cast-iron yacht keel in marine environment during long-term exposure
Abstract
In the present study, the corrosion behaviour of a yacht’s keel was investigated. The part had corroded during the COVID pandemic stagnation period when the yacht was kept at the dockyard (shore-water) with a minimum standard maintenance during COVID lockdown time. The corroded scale layers were sampled and characterised to understand the cast-iron corrosion mechanism. The incorporated alloying elements and the formed compounds with their contribution to the corrosion mechanism were investigated. It was evident that Fe2O3 (haematite) and SiO2 (silicon dioxide) were developed on keel’s surface during pandemic’s stagnation period. Those along with consequent oxidation precipitates, inappropriate paint coating material such as copper particles and the existence of detrimental elements from seawater such as S or P accelerated the corrosion rate drastically. The lack of full maintenance for a long time during pandemic is considered to be the main factor for rapid galvanic corrosion occurrence and the keel’s premature failure.