Investigation of the Influence of High Speed Sintering Regimes on the Structure and Properties of WC Based Carbide Composites with High Entropy Bonding

The influence of the rate of sintering by electron beam sintering (EBS) and spark plasma sintering (SPS) methods on the formation of the microstructure and properties of a 90 wt % WC + 10 wt % FeCrNiWMo composite is studied. The effect of technological parameters of sintering on structure formation and phase composition of a metal ceramic composite with high entropy bonding is determined. The change in the stoichiometric composition of tungsten carbide after sintering the composite by the SPS method is investigated. The mechanical properties (strength, hardness, crack resistance, and compressive strength) of the samples sintered by the EBS and SPS methods are compared. It is found that the electron beam method is more promising than the spark-plasma method when sintering a metal ceramic composite with high entropy bonding under optimal conditions. The study results can be used in toolmaking and in the military industry for manufacturing armor piercing cores of ammunition for small arms.