Electrochemical Corrosion Behavior of Pure Mg Processed by Powder Metallurgy

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dc.contributor.authorMinda, Jozefcs
dc.contributor.authorFintová, Stanislavacs
dc.contributor.authorHadzima, Branislavcs
dc.contributor.authorDoležal, Pavelcs
dc.contributor.authorHasoňová, Michaelacs
dc.contributor.authorDoskočil, Leošcs
dc.contributor.authorWasserbauer, Jaromírcs
dc.coverage.issue8cs
dc.coverage.volume11cs
dc.date.accessioned2021-09-06T14:55:51Z
dc.date.available2021-09-06T14:55:51Z
dc.date.issued2021-08-19cs
dc.description.abstractPure Mg samples were prepared by powder metallurgy using the cold and hot compacting methods. Cold compacted pure Mg (500 MPa/RT) was characterized by 5% porosity and the mechanical bonding of powder particles. Hot compacted samples (100 MPa/400 °C and 500 MPa/400 °C) exhibited porosity below 0.5%, and diffusion bonding combined with mechanical bonding played a role in material compaction. The prepared pure Mg samples and wrought pure Mg were subjected to corrosion tests using electrochemical impedance spectroscopy. Similar material corrosion behavior was observed for the samples compacted at 500 MPa/RT and 100 MPa/400 °C; however, hot compacted samples processed at 500 MPa/400 °C exhibited longer corrosion resistance in 0.9% NaCl solution. The difference in corrosion behavior was mainly related to the different binding mechanisms of the powder particles. Cold compacted samples were characterized by a more pronounced corrosion attack and the creation of a porous layer of corrosion products. Hot compacted samples prepared at 500 MPa/400 °C were characterized by uniform corrosion and the absence of a layer of corrosion products on the specimen surface. Powder-based cold compacted samples exhibited lower corrosion resistance compared to the wrought pure Mg, while the corrosion behavior of the hot compacted samples prepared at 500 MPa/400 °C was similar to that of wrought material.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCoatings, MDPI. 2021, vol. 11, issue 8, p. 1-15.en
dc.identifier.doi10.3390/coatings11080986cs
dc.identifier.issn2079-6412cs
dc.identifier.other172316cs
dc.identifier.urihttp://hdl.handle.net/11012/201480
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCoatings, MDPIcs
dc.relation.urihttps://www.mdpi.com/2079-6412/11/8/986cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2079-6412/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectmagnesiumen
dc.subjectcorrosionen
dc.subjectcold pressingen
dc.subjecthot pressingen
dc.subjectpowder metallurgyen
dc.titleElectrochemical Corrosion Behavior of Pure Mg Processed by Powder Metallurgyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-172316en
sync.item.dbtypeVAVen
sync.item.insts2021.10.26 16:56:55en
sync.item.modts2021.10.26 16:15:16en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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