Thermodynamic description of the Al-Cu-Yb ternary system supported by first-principles calculations

G. Huang, L. Liu, L. Zhang, Z. Jin
2016 Journal of Mining and Metallurgy. Section B: Metallurgy  
Phase relationships of the ternary Al-Cu-Yb system have been assessed using a combination of CALPHAD method and firstprinciples calculations. A self-consistent thermodynamic parameter was established based on the experimental and theoretical information. Most of the binary intermetallic phases, except Al 3 Yb, Al 2 Yb, Cu 2 Yb and Cu 5 Yb, were assumed to be zero solubility in the ternary system. Based on the experimental data, eight ternary intermetallic compounds were taken into consideration
more » ... into consideration in this system. Among them, three were treated as line compounds with large homogeneity ranges for Al and Cu. The others were treated as stoichiometric compounds. The calculated phase diagrams were in agreement with available experimental and theoretical data.
doi:10.2298/jmmb150709013h fatcat:xr7dhzmvkfgdrm5effnersac5m