Phase stability among the α(A1), β(A2), and γ(D83) phases in the Cu-Al-X system

Microstructure, thermodynamics and compressive properties of AlCrCuNixTi (x = 0, 1) high entropy alloys

“…2b) is detected by XRD pattern. The Al 4 Cu 9 phase, referred as c 1 phase, 17 has a bcc structure 18 with a lattice constant of 8.70 A ˚. The Al Cu -like phase is an intermetallic-base SS owing to the negligible contents of Cr (1.2 at.%) and Ti (1.5 at.%) as shown in Table 1.…”

Thermodynamic database on microsolders and copper-based alloy systems

“…To obtain a good assessment for thermodynamic parameters, experimental investigations of phase equilibria, including not only first-order phase transformation but also order-disorder transition for some important systems with no or very little experimental data, were carried out on the basis of differential scanning calorimetry, energy dispersive x-ray spectroscopy, the diffusion couple method, etc. [22][23][24][25][26][27][28][29] For example, the ordering of the bcc phase has been determined in the Cu-Al, 26 Cu-Sn, 27 and Cu-Fe-Al systems. 28 Thermodynamic parameters of the liquid phase were mainly estimated based on the experimental data of the phase equilibria and thermodynamic properties, such as activity, enthalpy of mixing, etc., and those for solid phases were assessed by fitting the experimental data of phase equilibria.…”