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dc.contributor.authorVenter, AM-
dc.contributor.authorOladijo, OP-
dc.contributor.authorLuzin, V-
dc.contributor.authorCornish, LA-
dc.contributor.authorSacks, N-
dc.identifier.citationVenter, A. M., Oladijo, O. P., Luzin, V., Cornish, L. A., & Sacks, N. (2013). Performance characterization of metallic substrates coated by HVOF WC-Co. Thin Solid Films, 549, 330-339. doi:10.1016/j.tsf.2013.08.075en_AU
dc.description.abstractIntegral to the performance of high-velocity oxygen-fuel (HVOF) coatings is the thermo-mechanical interaction associated with the thermal misfit, or differences in thermal expansion coefficients (CTEs), between coating and substrate. This investigation reports results on the microstructures, chemical phase content, coating–substrate misfit residual stress, and wear resistance. For this purpose a systematic characterization of WC–Co sprayed coatings on a number of substrates covering a range of CTE values were pursued for both the as-coated and heat-treated conditions. The neutron diffraction technique in conjunction with sub-millimeter sized gauge volumes enabled depth-resolved studies of the stress in the coatings and substrates by paying special attention to the determination of the stress contribution attributed by the final spray process. In the as-coated condition the stress values in the coatings were compressive for CTEs larger than that of WC–Co and tensile for CTE lower than WC–Co. Wear resistance increased for increased compressive stress and macrohardness. In the heat-treated condition, this trend became enhanced due to increased compressive stress in the coatings. © 2013, Elsevier B.V.en_AU
dc.subjectResidual stressesen_AU
dc.subjectSprayed coatingsen_AU
dc.subjectWear resistanceen_AU
dc.subjectSurface coating-
dc.subjectThermal expansion-
dc.subjectNeutron diffraction-
dc.titlePerformance characterization of metallic substrates coated by HVOF WC-Coen_AU
dc.typeJournal Articleen_AU
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