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Plasma Spraying and Characterization of Tungsten Carbide-Cobalt Coatings by the Water-Stabilized System WSP
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SYSNO ASEP 0341118 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Plasma Spraying and Characterization of Tungsten Carbide-Cobalt Coatings by the Water-Stabilized System WSP Author(s) Ctibor, Pavel (UFP-V) RID, ORCID
Kašparová, M. (CZ)
Bellin, J. (FR)
Le Guen, E. (FR)
Zahálka, F. (CZ)Source Title Advances in Materials Science and Engineering. - : Hindawi - ISSN 1687-8434
Roč. 2009, - (2009), s. 1-11Number of pages 11 s. Publication form web - web Language eng - English Country US - United States Keywords Tungsten karbide – cobalt, cermet ; wear resistance ; abrasion ; plasma spraying Subject RIV JG - Metallurgy R&D Projects 1QS200430560 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20430508 - UFP-V (2005-2011) DOI 10.1155/2009/254848 Annotation Tungsten carbide-cobalt powders (WC-17wt% Co) were plasma sprayed by a water-stabilized system WSP. Experiments with variable feeding distances and spray distances were carried out. Thinner coatings were deposited on carbon steel substrates and thicker coatings on stainless steel substrates to compare different 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 resistance 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 were discussed in connection with changes of phase composition and with the quality of the coating's microstructure. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2010
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