The chromium-nickel-carbon (Cr-Ni-C) phase diagram

Phase equilibria of the Cr-Ni-C system in the melting (crystallization) ran ge were investigated by means of metallography, microprobe analysis, powder x-ray diffraction, differential thermal analysis, and melting point techni que (Pirani and Alterthum method). On the basis of received results and ass essment of available literary data, the phase diagram was presented as proj ections of solidus, liquidus, and melting (crystallization) diagram, reacti on scheme at crystallization (melting), a number of vertical and isothermal sections. No ternary compounds were found in the system. The Ni-base phase forms equilibria with all others. The character of solid-phase equilibria does not change in the temperature range under investigation, from solidus to 800 degrees C.