EFFECT OF CHROMIUM ON THE OXYGEN SOLUBILITY IN NICKEL ALLOYS CONTAINING UP TO 25 % OF COBALT
https://doi.org/10.17073/0368-0797-2016-11-833-836
Abstract
Thermodynamic analysis of oxygen solutions in nickel alloys containing cobalt and chromium was carried out. The equilibrium constants of interaction of chromium and oxygen, their activity coefficients at infinite dilution and the interaction parameters for melts of different composition at 1873 K were determined. The dependences of oxygen solubility on the contents of cobalt and chromium in the studied melts were calculated. The deoxidation ability of chromium slightly decreases with increasing cobalt content in melt. The oxygen solubility curves in the Ni – Co melts contai ning chromium pass through a minimum whose position shifts to the higher chromium concentrations with an increase in the cobalt content in the melt.
About the Authors
A. A. Aleksandrov
Baikov Institute of Metallurgy and Materials Science, RAS
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher,
Moscow
V. Ya. Dashevskii
Baikov Institute of Metallurgy and Materials Science, RAS;
National University of Science and Technology “MISIS” (MISIS)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Energyeffi cient and Resource-saving Industrial Technologies”, Head of the Laboratory,
Moscow
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Review
For citations:
Aleksandrov A.A., Dashevskii V.Ya. EFFECT OF CHROMIUM ON THE OXYGEN SOLUBILITY IN NICKEL ALLOYS CONTAINING UP TO 25 % OF COBALT. Izvestiya. Ferrous Metallurgy. 2016;59(11):833-836. (In Russ.) https://doi.org/10.17073/0368-0797-2016-11-833-836
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