RT Journal Article
T1 Production of Ultrafine Grained Hardmetals by Electrical Resistance Sintering
A1 Cintas Físico, Jesús
A1 Astacio, Raquel
A1 Gómez Cuevas, Francisco de Paula
A1 Montes Martos, Juan Manuel
A1 Weissgaerber, Thomas
A1 Lagos, Miguel Ángel
A1 Torres, Yadir
A1 Gallardo, José María
AB In this work, powders of cemented ultrafine WC-6 wt.% Co were consolidated. Thefeasibility of the medium frequency electrical resistance sintering (MF-ERS) technique were studiedto prevent WC grain growth during consolidation. Porosity and hardness were measured at differentzones of the MF-ERS compacts. The compacts showed a slight inhomogeneity in their propertiesacross 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 sinteringtimes between 600 and 800 ms. The main achievement using this consolidation method was thatsintered compacts essentially maintained the initial WC grain size. This was attained to processingtimes of less than 2 s, and without the need for using protective atmospheres.
PB MDPI
SN 2075-4701
YR 2019
FD 2019
LK http://hdl.handle.net/10272/15957
UL http://hdl.handle.net/10272/15957
LA eng
NO Cintas, J., Astacio, R., Gómez Cuevas, F., Montes, J., Weissgaerber, T., Lagos, M., Yorres, Y., Gallardo, J. (2019). Production of Ultrafine Grained Hardmetals by Electrical Resistance Sintering. Metals, 9(2), 159. https://doi.org/10.3390/met9020159
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026