The Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloy

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dc.contributor.authorKusmič, Davidcs
dc.contributor.authorKlakurková, Lenkacs
dc.contributor.authorJuliš, Martincs
dc.contributor.authorGejdoš, Pavelcs
dc.contributor.authorČech, Ondřejcs
dc.coverage.issue1cs
dc.coverage.volume105cs
dc.date.accessioned2022-02-01T11:51:51Z
dc.date.available2022-02-01T11:51:51Z
dc.date.issued2021-08-22cs
dc.description.abstractIn this paper, commercially cold-rolled and artificial aged EN AW 7075 T6 alloy has been used. To ensure increased corrosion resistance, surface hardness, scratching resistance, and aesthetic features, this aluminium alloy was subsequently hard anodised and hot-water sealed (AC-A). The hard anodizing and sealing process increased surface hardness up to 304 13 HV 1 from an initial surface hardness of 194 3 HV 1. Also, the microhardness of the anodised layer and bulk material has been documented. Scanning electron microscopy (SEM) was used for microstructure and trapped precipitates investigation in the 42.9 1.4 thick formed anodised layer investigation. The T6 treated (AC) and hard anodised together with sealed (AC-A) EN AW 7075 alloy corrosion properties were evaluated using the anodic potentiodynamic polarisation tests (PPT) in a neutral 2.5% NaCl deaerated solution. The corrosion rate CR (mm/y) decreased approx. 39-times for the hard anodised and sealed EN AW 7075 alloy (AC-A), associated with the shift of the E corr (mV) to more positive values, degreased Icorr (µA) and increased Rp (Ohm) values compared to the artificial aged (AC) alloy. Additionally, the pitting was evaluated using laser confocal microscopy, and the pitting coefficient was also calculated.en
dc.description.embargo2022-08-22cs
dc.formattextcs
dc.format.extent329-337cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationECS Transaction. 2021, vol. 105, issue 1, p. 329-337.en
dc.identifier.doi10.1149/10501.0329ecstcs
dc.identifier.isbn9781607685395cs
dc.identifier.issn1938-6737cs
dc.identifier.other176135cs
dc.identifier.urihttp://hdl.handle.net/11012/203542
dc.language.isoencs
dc.publisherElectrochemical Societycs
dc.relation.ispartofECS Transactioncs
dc.relation.urihttps://iopscience.iop.org/article/10.1149/10501.0329ecstcs
dc.rights(C) Electrochemical Societycs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1938-6737/cs
dc.subjectcorrosion resistanceen
dc.subject7075-T6en
dc.subjectaluminum corrosionen
dc.titleThe Corrosion Resistance of Hard Anodised EN AW 7075 T6 Alloyen
dc.title.alternativeKorozní odolnost EN AW 7075 T6 po anodizacics
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-176135en
sync.item.dbtypeVAVen
sync.item.insts2022.08.22 01:04:15en
sync.item.modts2022.08.22 00:15:05en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé povlakycs
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav elektrotechnologiecs
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