Thermodynamic Modeling of the Al2O3–Ti2O3–TiO2 System and Its Applications to the Fe–Al–Ti–O Inclusion Diagram
- 1 January 2009
- journal article
- Published by Iron and Steel Institute of Japan in ISIJ International
- Vol. 49 (9), 1290-1297
- https://doi.org/10.2355/isijinternational.49.1290
Abstract
All available thermodynamic and phase diagram data have been critically evaluated and optimized for the liquid slag phase and for all solid phases at 1 bar pressure from 298 K to above the liquidus temperatures for the systems Al2O3–TiO2, Al2O3–Ti2O3, and Al2O3–Ti2O3–TiO2, and a database of model parameters has been prepared. The Modified Quasichemical Model was employed for the molten oxide phase. The thermodynamic modeling predicts the existence of a liquid oxide Al2O3–Ti2O3–TiO2 phase at secondary steelmaking conditions. The database was used to calculate the inclusion diagram for Al–Ti deoxidation at 1600°C.Keywords
This publication has 25 references indexed in Scilit:
- Thermodynamic Relation between Aluminum and Titanium in Liquid IronISIJ International, 2008
- The Transient Stages of Inclusion Evolution During Al and/or Ti Additions to Molten IronISIJ International, 2007
- Critical thermodynamic evaluation and optimization of the MnO–“ TiO2 ”–“ Ti2O3 ” systemCalphad, 2006
- Computer Applications of Thermodynamic Databases to Inclusion EngineeringISIJ International, 2004
- FactSage thermochemical software and databasesCalphad, 2002
- A general “geometric” thermodynamic model for multicomponent solutionsCalphad, 2001
- The modified quasi-chemical model: Part II. Multicomponent solutionsMetallurgical and Materials Transactions, 2001
- Thermodynamic analysis of inclusions in Ti‐deoxidised steelsScandinavian Journal of Metallurgy, 2000
- The modified quasichemical model I—Binary solutionsMetallurgical and Materials Transactions B, 2000
- Schmelzdiagramme höchstfeuerfester Oxyde. IV. (Aluminiumoxyd)Zeitschrift für anorganische und allgemeine Chemie, 1932