Process temperature/velocity-hardness-wear relationships for high-velocity oxyfuel sprayed nanostructured and conventional cermet coatings

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DOIResolve DOI: http://doi.org/10.1361/10599630522729
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TypeArticle
Journal titleJournal of Thermal Spray Technology
ISSN1544-1016
1059-9630
Volume14
Issue1
Pages6776; # of pages: 9
Subjecthigh-velocity oxyfuel; nanostructured; processproperty-performance relationships; WC-12Co
AbstractHigh-velocity oxyfuel (HVOF) spraying of WC-12Co was performed using a feedstock in which the WC phase was either principally in the micron size range (conventional) or was engineered to contain a significant fraction of nanosized grains (multimodal). Three different HVOF systems and a wide range of spray parameter settings were used to study the effect of in-flight particle characteristics on coating properties. A process window with respect to particle temperature was identified for producing coatings with the highest resistance to dry abrasion. Although the use of a feedstock containing a nanosized WC phase produced harder coatings, there was little difference in the abrasion resistance of the best-performing conventional and multimodal coatings. However, there is a potential benefit in using the multimodal feedstock due to higher deposition efficiencies and a larger processing window.
Publication date
PublisherASM International
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NRC number46820
NPARC number15936190
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Record identifier71ec20f8-45eb-4698-929f-eb8e3d1878da
Record created2010-08-17
Record modified2016-05-09
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