JOINT EFFECT OF ALUMINUM AND TITANIUM ON THE OXYGEN SOLUBILITY IN NICKEL BASED MELTS
https://doi.org/10.17073/0368-0797-2017-12-1008-1011
Abstract
A thermodynamic analysis of the joint effect of aluminum and titanium on the solubility of oxygen in nickel-based melts has been carried out. It has shown that due to the formation of complex oxide Al2 O3 ·TiO2 titanium enhances the deoxidizing ability of aluminum. The effect of titanium is manifested at an aluminum content of up to 0.01 %, at higher aluminum concentrations it alone determines the solubility of oxygen in the melt. The optimum content of titanium is about 0.2 %.
About the Authors
V. Ya. DashevskiiRussian Federation
Dr. Sci. (Eng.), Professor of the Chair “Energyefficient and Resource-saving Industrial Technologies”, Head of the Laboratory
A. A. Aleksandrov
Russian Federation
Cand. Sci. (Eng.), Senior Researcher
References
1. Freudenberg B., Mocellin A. Aluminum titanate formation by solidstate reaction of fine Al2 O3 and TiO2 powders. J. Am. Ceram. Soc. 1987, vol. 70, no. 1, pp. 33–38.
2. Slag Atlas. Düsseldorf: Verlag Stahleisen GmbH, 1995, 634 p. (In Germ.).
3. Dashevskii V.Ya., Makarova N.N., Grigorovich K.V. et al. Deoxidation equilibrium of aluminum and silicon in the liquid iron-nickel alloys. ISIJ International. 2005, vol. 45, no 1, pp. 8–11.
4. Dashevskii V.Ya., Aleksandrov A.A., Kanevskii A.G., Makarov M.A. Deoxidation equilibrium of titanium in the liquid ironnickel melts. ISIJ International. 2010, vol. 50, no 1, pp. 44–52.
5. Steelmaking Data Sourcebook. N.Y.-Tokyo: Gordon & Breach Science Publ., 1988, 325 p.
6. Belyanchikov L.N. Universal method for recalculating interaction parameters of elements in changing the matrix of alloys using the quasi-regular solution theory. II. Estimating the interaction parameters of elements in nickel–based alloys. Elektrometallurgiya. 2009, no. 2, pp. 29–38. (In Russ.).
7. Sigworth G.K., Elliott J.F., Vaughn G., Geiger G.H. The thermodynamics of dilute liquid nickel alloys. Metallurgical Soc. CIM. 1977, Annual Volume, pp. 104–110.
8. Janke D., Fischer W.A. Das Lösungsverhalten des Sauerstoffs in Nickelbasisschmelzen. Arch. Eisenhüttenw. 1975, B. 46, H. 5, s. 297–302. (In Germ.).
Review
For citations:
Dashevskii V.Ya., Aleksandrov A.A. JOINT EFFECT OF ALUMINUM AND TITANIUM ON THE OXYGEN SOLUBILITY IN NICKEL BASED MELTS. Izvestiya. Ferrous Metallurgy. 2017;60(12):1008-1011. (In Russ.) https://doi.org/10.17073/0368-0797-2017-12-1008-1011