Influence of powder characteristics on the spreadability of pre-alloyed tungsten-carbide cobalt

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dc.contributor.authorGovender, Preyinen_ZA
dc.contributor.authorBlaine, Deborah Clareen_ZA
dc.contributor.authorSacks, Natashaen_ZA
dc.date.accessioned2023-01-16T11:10:26Zen_ZA
dc.date.available2023-01-16T11:10:26Zen_ZA
dc.date.issued2021en_ZA
dc.descriptionCITATION: Govender, P., Blaine, D. C. & Sacks, N. 2021. Influence of powder characteristics on the spreadability of pre-alloyed tungsten-carbide cobalt. South African Journal of Industrial Engineering November, 32(3):284-289, doi:10.7166/32-3-2664.en_ZA
dc.descriptionThe original publication is available at http://sajie.journals.ac.zaen_ZA
dc.description.abstractWith rising interest in additive manufacturing (AM) techniques, there is an increased focus on research that evaluates critical parameters that guide the selection of powders that are suitable for AM. One such parameter is a powder’s spreadability, described by metrics such as powder bed density and percentage coverage. This study focused on three spray-dried WC-Co powders (two 12 wt% and one 17 wt% Co) and evaluated the influence of typical powder characteristics, such as particle size and shape, apparent density, and flow rate, on their spreadability. It was found that particle size distribution influenced the powder spreadability. Larger particles hindered the even spreading of powder over the base plate, resulting in low powder bed density and percentage coverage. This also correlated with the powders’ apparent densities. The flow rate and angle of repose gave an indication of how cohesive the powders are. The more cohesive a powder, the poorer the spreadability, resulting in a lower powder bed density and percentage coverage.en_ZA
dc.description.urihttp://sajie.journals.ac.za/pub/article/view/2664en_ZA
dc.description.versionPublisher's versionen_ZA
dc.format.extent6 pagesen_ZA
dc.identifier.citationGovender, P., Blaine, D. C. & Sacks, N. 2021. Influence of powder characteristics on the spreadability of pre-alloyed tungsten-carbide cobalt. South African Journal of Industrial Engineering November, 32(3):284-289, doi:10.7166/32-3-2664.en_ZA
dc.identifier.issn2224-7890 (online)en_ZA
dc.identifier.otherdoi:10.7166/32-3-2664en_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/125874en_ZA
dc.language.isoen_ZAen_ZA
dc.publisherSouthern African Institute for Industrial Engineeringen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectPowder metallurgyen_ZA
dc.subjectTungsten carbideen_ZA
dc.subjectMetallic compositesen_ZA
dc.subjectAdditive manufacturingen_ZA
dc.titleInfluence of powder characteristics on the spreadability of pre-alloyed tungsten-carbide cobalten_ZA
dc.typeArticleen_ZA
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