An assessment of the Fe-S system using a two-sublattice model for the liquid phase

Autor: Guillermet, A. Fernandez, Hillert, M., Jansson, B., Sundman, B.
Zdroj: Metallurgical and Materials Transactions B; December 1981, Vol. 12 Issue: 4 p745-754, 10p
Abstrakt: The strong variation in thermodynamic properties of the liquid phase in some systems is often accounted for by hypothesizing the existence of molecular-like aggregates. It is now suggested that it could also be accounted for in terms of a two-sublattice model. This model is applied to the Fe-S system. A good agreement is obtained with experimental information on the sulfur activity and phase equilibria. The assessment of the Fe-S system was carried out using a computer-operated optimization procedure and the phase equilibria were calculated with a rather general computer program.
Databáze: Supplemental Index