RESEARCH OF THE STRUCTURE AND PHASE COMPOSITION OF THE POWDER ALLOY BASED ON TITANIUM CARBIDE

Abstract

The structure and phase composition of TiC-NiTi powder alloys, which were produced via controlled hot vacuum pressing, was ascertained. The alloys with 50% of TiC and Ni-Ti binder were under investigation. It was shown that the structure of TiC-NiTi alloys can be metastable. It was proved that alloy with 11,5% Ni content had stable structure, while alloy with 27%Ni was metastable and tended to phase transformation of NiTi. It was also shown that annealing at 1150ºC caused stabilization of material.