Reassessment of the solubility of TiC and TiN in Fe

The experimental information on the solubility in the various Fe phases of TiC, TiN and solutions between them has been assessed using thermodynamic m odelling. A set of values for the model parameters is proposed and it is ca pable of reproducing the experimental information with reasonable accuracy. It is noted that the TiC-TiN solution was found to have a small negative d eviation from ideality. A previous assessment resulted in a strong, negativ e deviation from ideality but it did not reproduce all the information on t he solubility very well.