Influence of ultradisperse additives on the microstructure and properties of tungsten-cobalt alloys from drilling technics working elements

Are carried out researches of microstructure and mechanical properties of test samples of drilling plates from tungsten-cobalt alloys with ultradisperse additives. It is established, that for the majority of the developed structures density of hard-alloy material not below the level of density of control sample without ultradis-perse additives. Practical saving of tungsten-cobalt alloys microstructure is observed at increase of the mainte-nance of ultradisperse additives from silicon carbide. It is revealed, that the most perspective of developed al-loys is hard-alloy material with ultradisperse silicon carbide with maintenance up to 0,1 % which simultane-ously has high microhardness and homogeneous microstructure.