Thermodynamic analysis of gaseous phase equilibrium compositions in producing iron-and cobalt-based alloys by diffusion saturation from point sources. I. Calculation of thermodynamic characteristics of chemical processes in mixtures of iron or cobalt with chromium, nickel, or molybdenum

The paper presents a thermodynamic analysis of chemical equilibrium characteristics of Fe-Cr-Ni-Mo and Co-Cr-Ni-Mo alloys used to produce retention coatings on dentures by diffusion saturation from point sources under 0.1 MPa at 500–1500 K. It is shown that metals are transported through the gaseous phase with FeCl and FeCl₂, CoCl and CoCl₂, CrCl and CrCl₃, NiCl and NiCl₂, and MoCl₃ and MoCl₄ molecules. Chromium, nickel, and molybdenum in the iron-based system should be expected to be alloyed with iron and chromium transport should be expected in the cobalt-based system.