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The influence of test-panel orientation and exposure angle on the corrosion rate of carbon steel. Mathematical modelling

2020-02Artigo científico Acesso aberto
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dc.contributor.authorSantana, Juan J.
dc.contributor.authorCano, Víctor
dc.contributor.authorVasconcelos, Helena C.
dc.contributor.authorSouto, Ricardo M.
dc.contributor.institutionCeFITec – Centro de Física e Investigação Tecnológica
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2021-06-15T22:21:34Z
dc.date.available2021-06-15T22:21:34Z
dc.date.issued2020-02
dc.descriptionProID2017010042
dc.description.abstractThe effects of both test-panel orientation and exposure angle on the atmospheric corrosion rates of carbon steel probes exposed to a marine atmosphere were investigated. Test samples were exposed in a tree-shape metallic frame with either three exposure angles of 30°, 45° and 60° and orientation north-northeast (N-NE), or eight different orientation angles around a circumference. It was found that the experimental corrosion rates of carbon steel decreased for the specimens exposed with greater exposure angles, whereas the highest corrosion rates were found for those oriented to N-NE due to the influence of the prevailing winds. The obtained data obtained were fitted using the bi-logarithmic law and its variations as to take in account the amounts of pollutants and the time of wetness (TOW) for each particular case with somewhat good agreement, although these models failed when all the effects were considered simultaneously. In this work, we propose a new mathematical model including qualitative variables to account for the effects of both exposure and orientation angles while producing the highest quality fits. The goodness of the fit was used to determine the performance of the mathematical models.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1151512
dc.identifier.doi10.3390/met10020196
dc.identifier.issn2075-4701
dc.identifier.otherPURE: 31971103
dc.identifier.otherPURE UUID: 7c8bb8ff-6560-40db-8b09-dba768c2e4e0
dc.identifier.otherScopus: 85079245558
dc.identifier.otherWOS: 000522450800041
dc.identifier.urihttp://hdl.handle.net/10362/119328
dc.identifier.urlhttps://www.scopus.com/pages/publications/85079245558
dc.language.isoeng
dc.peerreviewedyes
dc.subjectAtmospheric corrosion
dc.subjectCarbon steel
dc.subjectCorrosion rates
dc.subjectExposure angle
dc.subjectOrientation angle
dc.subjectPredictive models
dc.subjectGeneral Materials Science
dc.subjectMetals and Alloys
dc.subjectSDG 14 - Life Below Water
dc.titleThe influence of test-panel orientation and exposure angle on the corrosion rate of carbon steel. Mathematical modellingen
dc.typejournal article
degois.publication.issue2
degois.publication.titleMetals
degois.publication.volume10
dspace.entity.typePublication
rcaap.rightsopenAccess

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