Abstract
In the present work, FeMn13-40 wt.% TiC composites was fabricated by pulsed electric current sintering (PECS) process at different temperatures between 990 and 1020°C under a pressure of 60 MPa with a holding time of 5 min in the vacuum. Phase identification was done using the X-ray diffraction. The relative density, the microstructure and the hardness of the samples were characterized. The results showed that the relative density of FeMn13-TiC composites increased with the increase of sintering temperature. The lowest porosity (3.84%) and the highest hardness (70.54 HRC) of the sample were achieved by PECS process, namely sintering at the temperature of 1020°C under the applied pressure of 60 MPa for 5 min.
Highlights
Nowadays, the demand for metal matrix composites has become a necessity in the structural engineering field, due to their attractive physical and mechanical properties
There was no phase related to the Mn presented in the XRD patterns, the Mn atoms were completely dissolved into steel lattice as the substitution atoms after sintering process
4 Conclusions FeMn13-TiC (40 wt.%) composites has been successfully fabricated by pulsed electric current sintering (PECS) process
Summary
The demand for metal matrix composites has become a necessity in the structural engineering field, due to their attractive physical and mechanical properties. The effect of the sintering parameters, especially, the sintering temperature on the mechanical properties of FeMn13-TiC composites produced by PECS process has not been reported yet. In order to discuss the fabrication of FeMn13-TiC composites by PECS process, the sintering temperature is one of the most important factors.
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