Solution of oxygen in Fe-Ni melts containing titanium

The solution of oxygen in Ni-Fe melts containing titanium is analyzed in th ermodynamic terms. The reducing properties of titanium are impaired with in crease in nickel content to 30%, and then sharply rebound with further incr ease in nickel content. In the Fe-60% Ni alloy, the reducing properties of titanium are practically the same as in pure iron; in pure nickel, the oxyg en concentration is almost an order of magnitude less than in pure iron, at the same titanium concentrations. The solubility of oxygen in Fe-Ni melts containing titanium passes through a minimum at a certain titanium content, which increases with increase in Ni content in the melt: from similar to 0 .2% Ti for pure iron to similar to 0.5% Ti for pure nickel. Further additio ns of titanium increase the oxygen concentration in the melt.