Contact Person : Dilman Helen ; Last Date for the submission of abstract : 22/10/2018; Metal matrix composites with ceramic reinforcements, such as TiB2 particles are promising candidates for structural and armor applications. Moreover, the composites with a steel matrix may be heat treated to improve their mechanical properties. In the present work the effects of TiB2steel ratio , TiB2 particle size and thermal treatments on the hardness of steel - TiB2 composites, fabricated by free infiltration were studied.