Energy consumption, wear and corrosion of PEO coatings on preanodized Al alloy: the influence of current and frequency

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dc.contributor.authorMohedano Sánchez, Marta
dc.contributor.authorLópez, E.
dc.contributor.authorMingo Román, Beatriz
dc.contributor.authorMoon, S.
dc.contributor.authorMatykina, Endzhe
dc.contributor.authorArrabal Durán, Raúl
dc.date.accessioned2023-06-22T12:29:50Z
dc.date.available2023-06-22T12:29:50Z
dc.date.issued2022-10-13
dc.descriptionCRUE-CSIC (Acuerdos Transformativos 2022)
dc.description.abstractThe influence of current and frequency on energy consumption of plasma electrolytic oxidation (PEO) of a commercial aluminium alloy pre-treated by conventional anodizing in sulphuric acid has been investigated. The combination of a 20-μm thick precursor anodic porous film, high current (500 mA cm−2) and frequency (400 Hz) during PEO enables up to 76% energy savings compared to direct PEO treatment (50 Hz). The time needed to achieve a uniform coating thickness was also reduced from 3350 s to 750 s, for PEO_50 and A + PEO_400, respectively. The wear and corrosion performance of the optimised coatings (400 Hz) were also improved despite the lower thickness of the coatings. Such improvement was mainly attributed to the microstructural refinement associated with high frequency processing and early transaction to the “soft-sparking” regime. The modification of the frequency has a stronger influence on the corrosion response than the presence of the anodic precursor. The best corrosion response was obtained for PEO_400 followed closely by A + PEO_400.
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)/FEDER
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipComunidad de Madrid
dc.description.sponsorshipRoyal Academy of Engineering
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/75656
dc.identifier.doi10.1016/j.jmrt.2022.10.049
dc.identifier.issn22387854
dc.identifier.officialurlhttps://doi.org/10.1016/j.jmrt.2022.10.049
dc.identifier.urihttps://hdl.handle.net/20.500.14352/72683
dc.journal.titleJournal of Materials Research and Technology
dc.language.isoeng
dc.page.final2075
dc.page.initial2061
dc.publisherMPDI
dc.relation.projectIDPID2021-124341OB-C22
dc.relation.projectIDRYC-2017-21843
dc.relation.projectIDADITIMAT-CM (S2018/NMT-4411)
dc.relation.projectIDEP/V026097/1
dc.rightsAtribución 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/es/
dc.subject.keywordAnodizing
dc.subject.keywordPlasma electrolytic oxidation
dc.subject.keywordAluminum
dc.subject.ucmQuímica
dc.subject.unesco23 Química
dc.titleEnergy consumption, wear and corrosion of PEO coatings on preanodized Al alloy: the influence of current and frequency
dc.typejournal article
dc.volume.number21
dspace.entity.typePublication
relation.isAuthorOfPublication160ef5bd-2d04-4f6c-b028-cb7ce4cf8d38
relation.isAuthorOfPublication427b12dd-40e9-49e6-a8fe-d41e79a056ff
relation.isAuthorOfPublication6a953ac5-3b84-40fc-a995-2a00ac938151
relation.isAuthorOfPublication.latestForDiscovery160ef5bd-2d04-4f6c-b028-cb7ce4cf8d38
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