[en] In order to expensive cobalt, an investigation was carried out, on the passibility that WC-Ni hard metal could be obtained by substituting nickel for cobalt as binder metal. The influences of small amount of additives as well as nickel binder were investigated on sintering behavior of the WC and WC+6%(Ni+Co) system. In the nickel binded WC hard metal, the shrinkage behavior and hardness were simillar to those of the conventional WC-Co system. But by examining the microstructure of WC+(Ni+Co) system, it was conformed that the complex carbide and carbon precipitated more than in the cobalt binded one. Mechanical properties and sinterability of materials were mostly affected by changes in constitution of system (chemical composition, phase composition, as well as the equilibrium dependent microstructure). The relationships between sintering parameter, microstructure and their related materials properties were also discussed. (author)