Thermodynamicanalysis of gaseous phase equilibrium compositions in producing iron- and cobalt-based alloys by diffusion saturation from point sources. I. Calculation ofthermodynamic characteristics of chemical processes in mixtures of iron or cobaltwith c

Abstract

The paper presents a thermodynamic analysis of chemical equilibrium characteristicsof Fe-Cr-Ni-Mo and Co-Cr-Ni-Mo alloys used to produce retention coatings on denturesby diffusion saturation from point sources under 0.1 MPa at 500-1500 K. It is shown thatmetals are transported through the gaseous phase with FeCl and FeCl₂, CoCl and CoСl₂, CrCl and CrClСl₃, NiCl and NiCl₂, and MoCl₃ and MoCl₄ molecules. Chromium, nickel, andmolybdenum in the iron-based system should be expected to be alloyed with iron and chro-mium transport should be expected in the cobalt-based system..