Thermodynamic analysis of oxygen solubility in Fe-Ni melts containing vanadium

Thermodynamic analysis of oxygen solubility in Fe-Ni melts containing vanad ium shows that the reducing ability of vanadium declines slightly with; inc rease in Ni content in the melt to 20%, and then rises significantly. The c urves of oxygen solubility in ferronickel melt pass through a minimum, the position of which is shifted to lower V concentrations with increase in Ni content in the melt: from similar to 2% V for pure iron to similar to 0.6% V for pure nickel. Further addition of vanadium increases the oxygen conten t in the melt.