PHASE-EQUILIBRIA IN THE FE-CR-NI-C SYSTEM

Phase relationships in the Fe-Cr-Ni-C system have been studied at temp eratures of 1000, 900, and 795-degrees-C, for nickel concentrations eq ual to 8 wt.%, 18 wt.% and 30 wt.% level, for chromium concentrations from 15 wt.% to 30 wt.% and carbon ones from 0.1 wt.% to 0.8 wt.%. Car bon extraction replicas were used for analysis of the carbide composit ion. The component concentrations in individual phases were determined by means of microprobe technique. The experimental results obtained a re compared with calculated sections of the phase diagram.