Cintas, JesúsAstacio, RaquelCuevas, FranciscoMontes, JuanWeissgaerber, ThomasLagos, MiguelTorres, YadirGallardo, José2019Cintas , J , Astacio , R , Cuevas , F , Montes , J , Weissgaerber , T , Lagos , M , Torres , Y & Gallardo , J 2019 , ' Production of Ultrafine Grained Hardmetals by Electrical Resistance Sintering ' , Metals , vol. 9 , no. 2 , 159 , pp. 159 . https://doi.org/10.3390/met90201592075-4701researchoutputwizard: 11556/683Publisher Copyright: © 2019 by the authors. Licensee MDPI, Basel, Switzerland.In this work, powders of cemented ultrafine WC-6 wt.% Co were consolidated. The feasibility of the medium frequency electrical resistance sintering (MF-ERS) technique were studied to prevent WC grain growth during consolidation. Porosity and hardness were measured at different zones of the MF-ERS compacts. The compacts showed a slight inhomogeneity in their properties across their section, but it was controlled by choosing suitable values of the processing parameters. The optimal values for the material studied were current intensities between 7 and 8 kA and sintering times between 600 and 800 ms. The main achievement using this consolidation method was that sintered compacts essentially maintained the initial WC grain size. This was attained to processing times of less than 2 s, and without the need for using protective atmospheres.12465410enginfo:eu-repo/semantics/openAccessjournal article10.3390/met9020159Electrical resistance sinteringUltrafine grainHardmetalElectrical resistance sinteringUltrafine grainHardmetalGeneral Materials ScienceMetals and AlloysProject IDinfo:eu-repo/grantAgreement/EC/FP7/608729/EU/Energy Efficient Manufacturing Process of Engineering Materials/EFFIPROinfo:eu-repo/grantAgreement/EC/FP7/608729/EU/Energy Efficient Manufacturing Process of Engineering Materials/EFFIPROFunding InfoThe authors are grateful to the EU for funding this research within the framework of the EU 7th_x000D_ Framework Programme, grant number FoF.NMP.2013-10 608729, Energy Efficient Process of Engineering Materials,_x000D_ EFFIPRO Project.The authors are grateful to the EU for funding this research within the framework of the EU 7th_x000D_ Framework Programme, grant number FoF.NMP.2013-10 608729, Energy Efficient Process of Engineering Materials,_x000D_ EFFIPRO Project.http://www.scopus.com/inward/record.url?scp=85062357488&partnerID=8YFLogxK