Tungsten-tantalum alloys are of great interest due to the demand for high temperature ductile materials for nuclear and military applications. In the present study, the mechanical properties and microstructural evolution of W alloys with varying Ta and TiC concentrations were investigated. Base metal powders were blended using low-energy rotary ball milling and then sintered by the Field Assisted Sintering (FAST) technique. Mechanical properties were evaluated by four-point bend and Vicker's hardness testing, while microstructure was examined using optical and scanning electron microscopy paired with electron dispersive spectroscopy (EDS) analysis. Small TiC addition to pure tungsten alloys resulted in grain refinement and increased hardness and flexural strength. TiC added to W-Ta alloys was found to react with the TaOx present along the tantalum grain boundaries to produce regions of mixed TaCOx and TiOx phases in the interior of tantalum particles. Four point bend testing shows similar behavior between W, W-10%Ta, and W-10%Ta-5%TiC alloys, suggesting that the flexural mechanical behavior of Ta containing alloys is dominated by the tungsten matrix.