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.
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