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Plasma spraying of tungsten carbide – cobalt coatings by the water-stabilized system WSP

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    SYSNO ASEP0310211
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeConference Paper
    TitlePlasma spraying of tungsten carbide – cobalt coatings by the water-stabilized system WSP
    TitlePlazmové nástřiky na bázi wolfram karbid – kobalt připravené pomocí WSP technologie
    Author(s) Ctibor, Pavel (UFP-V) RID, ORCID
    Kašparová, M. (CZ)
    Bellin, J. (FR)
    Le Guen, E. (FR)
    Source TitleThermal spray crossing boarders (ITSC 2008)- Proceedings. - Duesseldorf : ASM International, 2008 / Lugscheider E. - ISBN 978-3-87155-979-2
    Pages08-0519-08-0519
    Number of pages12 kB
    Publication formCD-ROM - CD-ROM
    ActionInternational Thermal Spray Conference 2008
    Event date02.06.2008-04.06.2008
    VEvent locationMaastricht
    CountryNL - Netherlands
    Event typeWRD
    Languageeng - English
    CountryDE - Germany
    KeywordsPlasma spraying ; tungsten carbide - cobalt ; wear resistance ; mechanical testing
    Subject RIVJH - Ceramics, Fire-Resistant Materials and Glass
    R&D Projects1QS200430560 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    CEZAV0Z20430508 - UFP-V (2005-2011)
    AnnotationTungsten carbide – cobalt powders (WC-17wt.%Co) were plasma sprayed by a water-stabilized system WSP. A matrix of experiments with variable feeding distances and spray distances was carried out. Thinner coatings were carried out on carbon steel substrates and thicker coatings on stainless steel substrates to compare fast cooling conditions – the former with slower cooling conditions. Basic characterization of coatings was done by XRD, SEM and light microscopy plus image analysis. Microhardness was measured on polished cross sections. The main focus of investigation was on resistances against wear in dry as well as wet conditions. The appropriate tests were performed with set-ups based on ASTM G65 and G75, respectively. The influence of spray parameters onto coating wear performance was observed. The results of mechanical tests are discussed in connection with changes of phase composition and with the character of the coating’s microstructure.
    WorkplaceInstitute of Plasma Physics
    ContactVladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
    Year of Publishing2009
Number of the records: 1  

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