RT Journal Article
T1 Influence of Processing Parameters on the Conduct of Electrical Resistance Sintering of Iron Powders
A1 Astacio, Raquel
A1 Sánchez Caballero, Eduardo
A1 Gómez Cuevas, Francisco de Paula
A1 Montes Martos, Juan Manuel
A1 Ternero Fernández, Fátima
AB The influence of the applied pressure and electrical parameters on the macrostructure ofspecimens consolidated by the medium-frequency electrical resistance sintering technique (MF-ERS)is analysed in this work. This technique is based on the application of pressure to a mass of conductivepowder that, simultaneously, is being crossed by a high intensity and low voltage electric current. Thesimultaneous action of the pressure and the heat released by the Joule effect causes the densificationand consolidation of the powder mass in a very short time. The effect of the current intensity andheating time on the global porosity, the porosity distribution, and the microhardness of sinteredcompacts is studied for two applied pressures (100 and 150 MPa). For the different experiments ofelectrical consolidation, a commercially available pure iron powder was chosen. For comparisonpurposes, the properties of the compacts consolidated by MF-ERS are compared with the resultsobtained by the conventional powder metallurgy route (cold pressing and furnace sintering). Resultsshow that, as expected, higher current intensities and dwelling times, as well as higher pressures andthe consolidation of compacts with lower aspects ratios, produce denser materials.
PB MDPI
SN 2075-4701
YR 2020
FD 2020-04
LK http://hdl.handle.net/10272/18264
UL http://hdl.handle.net/10272/18264
LA eng
NO Ternero Fernández, F., Astacio López , R., Sánchez Caballero, E. , Gómez Cuevas, F. P., & Montes  Martos, J. M. (2020). Influence of Processing Parameters on the Conduct of Electrical Resistance Sintering of Iron Powders. Metals, 10(4), 540. DOI: https://doi.org/10.3390/met10040540
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026