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The Generalized Central Atom for Metallurgical Slags and High Alloyed Steel Grades

2010; Wiley; Volume: 81; Issue: 10 Linguagem: Inglês

10.1002/srin.201000137

1869-344X

J. Lehmann, Lijuan Zhang,

Solidification and crystal growth phenomena

Abstract The Cell model developed at ArcelorMittal Global R&D Maizières Process (formerly IRSID) during the 80's was the first comprehensive thermodynamic model for metallurgical slags. A more recent development in this domain, conducted jointly by ArcelorMittal Global R&D Maizières Process and CSIRO Process Science and Engineering, is the Generalized Central Atom model. This model is a generalization of the Central Atom model proposed in the 1970's by Lupis and co‐workers for modelling solid steel, which has now been extended to cover molten oxides and alloys. Recent work has shown how this model could greatly improve the performances of the Cell model for slags and how promising its application to liquid steel is, especially for high alloyed grades or segregated solutions.