Tungsten-free hard alloys based on titanium carbide

The properties of tungsten-free hard alloys based on titanium carbide prepared from chips of various titanium alloys were studied, and the conditions for the preparation of tungsten-free alloys were optimized. The properties of TiC-based alloys prepared from chips of the VT20, VT3-1, and VT25 titanium alloys, containing V, Mo, Zr, and Al, were shown to compare well with those of commercial analogs. Nickel vaporization during vacuum sintering of the hard alloys was studied, and the sintering conditions were optimized (residual pressure in the range 10–100 Pa, reduced sintering temperature)