Analytic Approach to Alloys Thermodynamics: Ternary Cu-Ga-Ni system

• Published in: Materials research (São Carlos, São Paulo, Brazil) Vol. 19; no. 5; pp. 1026 - 1032
• Main Authors: Gomidželović, Lidija, Kostov, Ana, Živković, Dragana, Krstić, Vesna
• Format: Journal Article
• Language: English; Portuguese; Spanish
• Published: ABM, ABC, ABPol 01.10.2016; Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
• Subjects: Alloy systems; Assessments; Calculation; Computer programs; COMPUTERS; COPPER ALLOYS (40 TO 99.3 CU); Copper base alloys; COPPER GALLIUM ALLOYS; ENGINEERING, CHEMICAL; General solution model; MATERIALS SCIENCE, MULTIDISCIPLINARY; MATHEMATICAL ANALYSIS; Mathematical models; METALLURGY & METALLURGICAL ENGINEERING; Phase diagrams; PROPERTIES; Ternary Cu-Ga-Ni system; Thermodynamic properties; Thermodynamics; Thermodynamics; Calculation; Ternary Cu-Ga-Ni system; General solution model
• ISSN: 1516-1439; 1980-5373; 1980-5373
• DOI: 10.1590/1980-5373-MR-2015-0238

In this paper are presented the results of the calculation of thermodynamic properties in liquid state for ternary Cu-Ga-Ni alloys using the newest version of general solution model. Calculation was carried out in temperature interval 1473-2073 K, along 3 cross sections from corner of each metal, with ratios between two other metals 1:3, 1:1 and 3:1. Partial and integral molar thermodynamic properties in liquid phase for the Cu-Ga-Ni ternary system are determined, presented and discussed. Calculated data is compared with data available from literature and good agreement between these two sets of data was observed. Additionally, isothermal section of phase diagram at 298 K is calculated using Thermo-Calc software and presence of eleven different phases is detected. Presented thermodynamic data for the Cu-Ga-Ni alloys could be useful for the further assessment of this system and its phase diagram as well as for completing thermodynamic description of these alloys.