The effect of heat-treatment on properties of Ni-P coatings deposited on AZ91 magnesium alloy

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dc.contributor.authorBuchtík, Martincs
dc.contributor.authorHasoňová, Michaelacs
dc.contributor.authorMásilko, Jiřícs
dc.contributor.authorWasserbauer, Jaromírcs
dc.coverage.issue7cs
dc.coverage.volume9cs
dc.date.accessioned2020-08-04T10:59:20Z
dc.date.available2020-08-04T10:59:20Z
dc.date.issued2019-07-23cs
dc.description.abstractThe present study reports the effect of phosphorus content in deposited electroless nickel (Ni–P) coatings, the heat treatment on the microhardness and its microstructural characteristics, and the influence of the temperature on the microstructure of the Mg alloy substrate during the heat treatment. The deposition of Ni–P coatings was carried out in the electroless nickel bath, and the resulting P content ranged from 5.2 to 10.8 wt.%. Prepared samples were heat-treated in the muffle furnace at 400 °C for 1 h after the coating deposition. The cooling of the samples to room temperature was proceeded in the air. For as-deposited and heat-treated samples, it was determined that with the increasing P content, the microhardness was decreasing. This may be caused by the changes in the structure of the Ni–P coating. The X-ray diffraction patterns of the as-deposited Ni–P coatings showed that the microstructure changed their nature from crystalline to amorphous with the increasing P content. The heat treatment of prepared samples led to the significant increase of microhardness of Ni–P coatings. All the heat-treated samples showed the crystalline character, regardless of the P content and the presence of hard Ni3P phase, which can have a positive effect on the increase of microhardness. The metallographic analysis showed changes of substrate microstructure after the heat treatment. The prepared coatings were uniform and with no visible defectsen
dc.formattextcs
dc.format.extent1-9cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationCoatings, MDPI. 2019, vol. 9, issue 7, p. 1-9.en
dc.identifier.doi10.3390/coatings9070461cs
dc.identifier.issn2079-6412cs
dc.identifier.other157793cs
dc.identifier.urihttp://hdl.handle.net/11012/180810
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofCoatings, MDPIcs
dc.relation.urihttps://www.mdpi.com/2079-6412/9/7/461cs
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 coatingsen
dc.subjectNi3P phaseen
dc.subjectMg alloysen
dc.subjectAZ91en
dc.subjectheat treatmenten
dc.subjectmicrohardnessen
dc.subjectcrystallite sizeen
dc.titleThe effect of heat-treatment on properties of Ni-P coatings deposited on AZ91 magnesium alloyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-157793en
sync.item.dbtypeVAVen
sync.item.insts2021.03.08 12:55:10en
sync.item.modts2021.03.08 12:15:28en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV - laboratoř kovů a korozecs
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. CMV - laboratoř anorganických materiálůcs
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