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Karakterizacija NiAl slojeva deponovanih atmosferskim plazma sprejom (APS)

dc.creatorMrdak, Mihailo
dc.creatorRakin, Marko
dc.creatorJanaćković, Đorđe
dc.creatorVeljić, Darko
dc.creatorBajić, Darko
dc.date.accessioned2021-03-10T14:26:18Z
dc.date.available2021-03-10T14:26:18Z
dc.date.issued2020
dc.identifier.issn0351-9465
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/4555
dc.description.abstractIn this paper analyzed were the mechanical properties and microstructure of the Ni30Al coating layers deposited using atmospheric plasma spray (APS). For deposition of the coating applied was a composite Ni30wt.% Al powder, manufactured by mechanical alloying of granulation below - 180 µm. The coatings mechanical properties were analyzed by microhardness measuring with the HV0.3 method and the bond strength by tension method. For the analysis of the microstructure of the coating layers applied was the method of light and scanning electron microscopy (SEM). Microhardness tests showed that the coating has a wide range of measured values which indicate a heterogeneous multiphase lamellar microstructure of the coating, which was confirmed by metallographic examination of the layers. The multi-phase lamellar microstructure consisted of the initial solid a-Al, y-Ni solutions, formed solid b-NiAl and NiAl martensite solutions, intermetallic compounds y-Ni3Al and Ni2Al3 and the oxide y-Al2O3 phase formed by oxidation of molten Al particles. Based on these tests given was an evaluation of the quality of the coating. The results of the experiment showed that the technological process of production of composite powders significantly affects the mechanical properties and structure of the coating layers.en
dc.description.abstractU ovom radu analizirane su mehaničke osobine i mikrostruktura slojeva prevlake Ni30Al deponovane atmosferskim plazma sprejom (APS). Za depoziciju prevlake primenjen je kompozitni prah Ni30tež.%Al proizveden mehaničkim legiranjem granulacije ispod - 180 µm. Mehaničke karakteristike prevlake analizirane su merenjem mikrotvrdoće metodom HV0.3 i čvrstoće spoja metodom na zatezanje. Za analizu mikrostrukture slojeva prevlake primenjena je metoda svetlosne i skening elektronske mikroskopije (SEM). Ispitivanja mikrotvrdoće su pokazala da prevlaka ima širok opseg izmerenih vrednosti koje ukazuju na višefaznu heterogenu lamelarnu mikrostrukturu prevlake, koja je potvrđena metalografskaim ispitivanjem slojeva. Višefazna lamelarna mikrostruktura se sastojala od polaznih čvrstih rastvora a-Al, y-Ni, formiranih čvrstih rastvora b-NiAl i NiAl martenzita, intermetalnih jedinjenja y-Ni3Al i Ni2Al3 i oksidne faze y-Al2O3 nastale oksidacijim istopljenih čestica Al. Na osnovu sprovedenih ispitivanja dala se ocena kvaliteta prevlake. Rezultati eksperimenta su pokazali da tehnološki postupak proizvodnje kompozitnih prahova bitno utiče na mehaničke karakteristike i strukturu slojeva prevlake.sr
dc.publisherEngineering Society for Corrosion, Belgrade, Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200287/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceZaštita materijala
dc.subjectatmospheric plasma spray (APS)en
dc.subjectmicrostructureen
dc.subjectNi30wt.% Alen
dc.subjectmicrohardnessen
dc.subjectbond strengthen
dc.subjectatmosferski plazma sprej (APS)sr
dc.subjectmikrostrukturasr
dc.subjectNi30tež.%Alsr
dc.subjectmikrotvrdoćasr
dc.subjectčvrstoća spojasr
dc.titleCharacterization of NiAl layers deposited by atmospheric plasma spray (APS)en
dc.titleKarakterizacija NiAl slojeva deponovanih atmosferskim plazma sprejom (APS)sr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage115
dc.citation.issue2
dc.citation.other61(2): 110-115
dc.citation.rankM51
dc.citation.spage110
dc.citation.volume61
dc.identifier.doi10.5937/zasmat2002110M
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/10229/0351-94652002110M.pdf
dc.type.versionpublishedVersion


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