FORMATION OF THE PHASE COMPOSITION OF TUNGSTENLESS HARD ALLOY POWDER WITH MECHANOCHEMICAL SYNTHESIS

Carbon and nickel are studied for their effect on the formation of phase composition of tungsten-free hard alloy powder prepared by mechanochemical synthesis. It is established that the phase formation of this powder is governed by the initial titanium carbide stoichiometry. If titanium carbide has a nonstoichiometric composition, the alloy structure corresponds to the three-phase equilibrium TiC1−x-Ni3Ti-Ni, and otherwise it corresponds to the equilibrium TiC-Ni.