The aim of this study is natructure cermet powder producing of (W,Ti)C-Ni-Co with mechanochemical and combustion synthesis methods. In this regard, the three powder mixtures with different ratios were used to produce of nanocomposites that in group A, the composition of the powder consist of W,Ti,Ni,Co and graphite powders with different ratios of W/Ti. In group B the carbide tungsten powder was replaced for W and C powders also, in group C the Ni-Ti alloy was replaced for Ni and Ti powder. Mechanical alloying of powder mixtures in all groups ranged 0 to 60 hours. In group A after 35 hours MA solid solution of (Ni,Co) was produced but the hard carbide phase is not generated. With increasing of milling time up to 60 hours, the carbide phase was produced. In group B, the carbide powder occurs after 35 hours and in group C, (W,Ti)C double carbide is formed. Synthezed nanocomposite powders were cold pressed and heat treatment in a tube furnace at 1100 and 1200 ?C. Microstructural changes and nanocomposite mechanical properties were investigated by XRD, SEM, FE-SEM and Microhardness. The microstructural of heat treated is containing of spherical particles in light gray that are uniformly distributed in structure. The results show, with increasing of ratios of W/Ti, the hardness of samples decreased that the number of hardness is 365 vickers. Also this procedure of decreasing of hardness after heat treating was observed that microhardness maximum of producing nano composite was 355 vickers. Keywords: Nanocomposite, Combustion synthesis, Mechanochemical, Microhardness.
