Rezumat
The influence of compacting conditions, of pressure and thermal treatment on the erosive characteris- tics of fine-grained WC-16%Co hard metals has been investigated. It is shown, that the erosive characteristics of sintered and not annealed hard metals, which were not subjected to pressure treatment, monotonously change with the change of consolidation temperature, while for alloys obtained by sintering with subsequent pressure treatment, and isothermal annealing the erosive characteristics practically do not depend on temperature of consolidation. It is established, that the erosive resistance of alloys, sintered at temperatures 950–1150oC and subjected to pressure treatment and isothermal annealing is 5 to10 times high- er than that of alloys sintered at the same temperatures, and is comparable with the erosive resistance of the alloys prepared at temperatures 13001350oC. The latter effect is due to the formation of the structure with high strength of intergranular boundaries under conditions high-energy pressure treatment.