Fig. 2: Thermodynamic calculation of the deoxidation of liquid Ti using Y metal and YOF formation.
From: Direct production of low-oxygen-concentration titanium from molten titanium
a Isothermal chemical potential diagram of the Y–O–F system at 2000 K (1727 °C). b Relationship between equilibrium oxygen concentrations in Ti and equilibrium partial pressures of oxygen under various temperatures. Equilibrium oxygen concentrations in Ti under various deoxidation reaction systems, such as Y/YOF/YF3 eq., are also plotted. c Equilibrium oxygen concentrations in Ti under various deoxidation reaction systems, plotted in the phase diagram for the Ti–O binary system. The dashed-line areas in the figure indicate the deoxidation conditions investigated in the current work.
