On possibility for realization of supersolidus sintering process in TiNi-based alloys
The possibility of supersolidus sintering realization in titanium nickelide (TiNi)-based alloys was investigated in this work. It was shown that the principle of supersolidus sintering in titanium nickelide based alloys was the presence of nickel-enriched intermetallic phases (TiNi 3) which melt at the temperature above 1118 °C. It was stated that reverse peritectic reaction TiNi + Ti 2Ni → L + TiNi could not be applied to the liquid-phase (supersolidus) sintering because of different oxygen content in the Ti 2Ni intermetallic particles with the thermal stability increased by oxygen.