Features of Melting Alloys Based on Titanium Nickelide in Inert Ceramic Crucibles

Abstract

Features of the structure and phase composition of alloys with a shape memory effect of the Ni–Ti–Nb and Ni–Ti–Nb–Zr systems, melted in graphite and inert ceramic crucibles in a vacuum are considered. Cast metal qualitative and quantitative structural and phase analysis data are provided, and the dependence of the amount of “parasitic” phase Ti₂Ni on melting method is demonstrated. The possibility of melting highly active materials based on titanium nickelide alloyed with niobium and zirconium in ceramic crucibles based on ZrO₂ is demonstrated.