The Effect of Crystallization and Phase Transformation on the Mechanical and Electrochemical Corrosion Properties of Ni-P Coatings

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dc.contributor.authorBuchtík, Martincs
dc.contributor.authorDoskočil, Leošcs
dc.contributor.authorBrescher, Romancs
dc.contributor.authorDoležal, Pavelcs
dc.contributor.authorMásilko, Jiřícs
dc.contributor.authorWasserbauer, Jaromírcs
dc.coverage.issue4cs
dc.coverage.volume11cs
dc.date.accessioned2021-04-22T07:54:49Z
dc.date.available2021-04-22T07:54:49Z
dc.date.issued2021-04-13cs
dc.description.abstractThis paper deals with the study of the crystallization and phase transformation of Ni-P coatings deposited on AZ91 magnesium alloy. Prepared samples were characterized in terms of surface morphology and elemental composition by means of scanning electron microscopy with energy-dispersive spectroscopy analysis. The results of X-ray diffraction analysis and differential scanning calorimetry suggested that increasing the phosphorus content caused Ni-P coatings to develop an amorphous character. The crystallization of Ni was observed at 150, 250, and 300 °C for low-, medium- and high-phosphorus coatings, respectively. The Ni crystallite size increased with increasing temperature and decreasing P content. Conversely, the presence of the Ni3P phase was observed at a maximum peak of 320 °C for the high-phosphorus coating, whereas the crystallization of the Ni3P phase shifted to higher temperatures with decreasing P content. The Ni3P crystallite size increased with increasing temperature and increasing P content. An increase in microhardness due to the arrangement of Ni atoms and Ni3P precipitation was observed. The deposition of as-deposited Ni-P coatings led to an improvement in the corrosion resistance of AZ91. However, the heat treatment of coatings resulted in a deterioration in corrosion properties due to the formation of microcracks.en
dc.formattextcs
dc.format.extent1-15cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCoatings, MDPI. 2021, vol. 11, issue 4, p. 1-15.en
dc.identifier.doi10.3390/coatings11040447cs
dc.identifier.issn2079-6412cs
dc.identifier.other171294cs
dc.identifier.urihttp://hdl.handle.net/11012/196546
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCoatings, MDPIcs
dc.relation.urihttps://www.mdpi.com/2079-6412/11/4/447/htmcs
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.subjectNi-P coatingen
dc.subjectAZ91 alloyen
dc.subjectphase transformationen
dc.subjectcrystallizationen
dc.subjectcorrosion behavioren
dc.titleThe Effect of Crystallization and Phase Transformation on the Mechanical and Electrochemical Corrosion Properties of Ni-P Coatingsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-171294en
sync.item.dbtypeVAVen
sync.item.insts2021.10.26 16:56:54en
sync.item.modts2021.10.26 16:15:18en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV laboratoř kovů a korozecs
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