Wear of grinding rotors with thermally-sprayed coatings in a high-speed mill

dc.contributor.authorTkachenko, Serhiics
dc.contributor.authorDvořák, Karelcs
dc.contributor.authorJech, Davidcs
dc.contributor.authorSlámečka, Karelcs
dc.contributor.authorKlakurková, Lenkacs
dc.contributor.authorPaloušek, Davidcs
dc.contributor.authorČelko, Ladislavcs
dc.coverage.issue1cs
dc.coverage.volume412-413cs
dc.date.issued2018-10-15cs
dc.description.abstractIn this paper, the erosion behavior of three types of protective thermally-sprayed coatings and non-coated substrate steel was investigated under semi-industrial test conditions using a laboratory high-speed pin mill DESI-11. The grinding in the mill was performed by two counter rotors, on which protective coatings were deposited either by atmospheric plasma spraying (APS) (Cr3C2-NiCr and NiCrBSi coatings) or by high velocity oxy-fuel (HVOF) process (WC-CoCr coating). The grinding rotors with deposited coatings were used for milling of the Portland cement, and rotors' weight loss was monitored after milling of 1, 3, 5, 10, and 15 kg of this material. The lowest weight loss in the mixed impact erosion conditions was exhibited by WC-CoCr coating, which was followed by Cr3C2-NiCr and NiCrBSi coatings. The greatest material removal on the anterior and the right lateral faces of rotor pins was a result of erosion damage at high impact angles through surface fatigue wear and the following failure of protective coatings down to the substrate. In contrast, the top and the left lateral faces of the pins were subjected mostly to the ploughing and microcutting at oblique impact angles that resulted in significant erosive damage only if hardness of the pin was lower than that of the Portland cement (Cr3C2-NiCrcoated and non-coated steel pins). The study also found a significant disproportion between the volumetric wear losses of various rows of pins of grinding rotors. The central part of the grinding tool consisting of two counter rotors (both rows of 2-row rotor and a middle row of 3-row rotor) suffered more intensive erosion wear than the external part (outer rows of 3-row rotor). The design of the mill and the resulting variability in parameters of milled powder particles at different sites of the grinding tool (such as particle size, particle flux and particle velocity) were considered as main reasons of this phenomena.en
dc.formattextcs
dc.format.extent49-59cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationWEAR. 2018, vol. 412-413, issue 1, p. 49-59.en
dc.identifier.doi10.1016/j.wear.2018.05.016cs
dc.identifier.issn0043-1648cs
dc.identifier.orcid0000-0001-9111-1520cs
dc.identifier.orcid0000-0003-2111-3357cs
dc.identifier.orcid0000-0002-9367-501Xcs
dc.identifier.orcid0000-0001-8847-075Xcs
dc.identifier.orcid0000-0002-2917-0287cs
dc.identifier.orcid0000-0003-4668-8763cs
dc.identifier.orcid0000-0003-0264-3483cs
dc.identifier.other149156cs
dc.identifier.researcheridG-7772-2018cs
dc.identifier.researcheridK-2385-2014cs
dc.identifier.researcheridG-9574-2014cs
dc.identifier.researcheridD-9475-2012cs
dc.identifier.researcheridE-2040-2012cs
dc.identifier.researcheridE-9044-2012cs
dc.identifier.researcheridD-6870-2012cs
dc.identifier.scopus55223374100cs
dc.identifier.scopus54992801300cs
dc.identifier.scopus16242487800cs
dc.identifier.scopus24779209000cs
dc.identifier.scopus37089205700cs
dc.identifier.scopus25621022900cs
dc.identifier.urihttp://hdl.handle.net/11012/188122
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofWEARcs
dc.relation.urihttps://doi.org/10.1016/j.wear.2018.05.016cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0043-1648/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/cs
dc.subjectCeramic-matrix compositeen
dc.subjectTricalcium phosphateen
dc.subjectSpark plasma sinteringen
dc.subjectMicrostructural tougheningen
dc.subjectFractographyen
dc.titleWear of grinding rotors with thermally-sprayed coatings in a high-speed millen
dc.title.alternativeOpotřebení mlecích rotorů vysokorychlostního mlýnu s žárovým nástřikemcs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionacceptedVersionen
sync.item.dbidVAV-149156en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:44:01en
sync.item.modts2025.01.17 15:16:20en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav fyzikálního inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav konstruovánícs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Centrum AdMaS - VP1 - MSHcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé instrumentace a metody pro charakterizace materiálůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé kovové materiály a kompozity na bázi kovůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé povlakycs
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. NCK MESTEC - sekce konstruovánícs
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