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

J. Min. Metall. Sect. B-Metall. 52 (2) B (2016) 177-183. DOI:10.2298/JMMB150709013H
Full text (pdf),
Export manuscript information:
RIS Format (EndNote, Reference Manager), BibTeX

Abstract

Phase relationships of the ternary Al-Cu-Yb system have been assessed using a combination of CALPHAD method and first-principles calculations. A self-consistent thermodynamic parameter was established based on the experimental and theoretical information. Most of the binary intermetallic phases, except Al3Yb, Al2Yb, Cu2Yb and Cu5Yb, were assumed to be zero solubility in the ternary system. Based on the experimental data, eight ternary intermetallic compounds were taken 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.
Keywords: l-Cu-Yb; Thermodynamic calculation; Phase diagram; CALPHAD
Correspondence Address:
L. Zhang, School of Material Science and Engineering,
Central South University, Changsha, Hunan, P. R. China,
Email:This email address is being protected from spambots. You need JavaScript enabled to view it.
Creative Commons License
This work is licensed under a
Creative Commons Attribution-NonCommercial-
NoDerivatives 4.0 International License
.