Thermodynamic description of the CuAlMn system in the copper-rich corner

Thermodynamic description of the ternary CuAlMn system in its copper-rich corner is presented. The thermodynamic parameters of the sub-systems, CuAl, CuMn and AlMn, are taken from earlier SGTE-based assessments (after modifying the CuMn description slightly) and those of the ternary CuAlMn system are optimized in this study by using the experimental phase equilibrium data. The present ternary description is valid for aluminum contents up to 18 wt% and manganese contents up to 50 wt%.