The system TiCr2—TaCr2—NbCr2

Abstract

1. The methods of x-ray diffraction and high-temperature thermal analyses were used to construct the constitution diagram of the system TiCr2-TaCr2, which constitutes a section of the ternary system Ti-Ta-Cr. 2. It was established that a continuous series of solid solutions forms both between the high- and low-temperature modifications of the compounds TiCr2 and TaCr2. 3. In the system NbCr2-TaCr2, in addition to a continuous series of solid solutions between the isomorphous compound modifications, the presence of a phase with an iron-tungsten carbide structure was discovered in the temperature range 1350–1400°C. 4. An equilibrium diagram of the ternary system TiCr2-TaCr2-NbCr2 was constructed with the aid of three sections.