Enthalpies of formation for the Al–Cu–Ni–Zr quaternary alloys calculated via a combined approach of geometric model and Miedema theory

Effects of La on the age hardening behavior and precipitation kinetics in the cast Al–Cu alloy

“…The more negative the DH AB is, the larger the atomic constraint force is, and the higher the thermal stability is [20]. According to the Miedema equation [21]: Table 1.…”

Monte Carlo simulations of strain-driven elemental depletion or enrichment in Cu95Al5 and Cu90Al10 alloys

“…By using the fitting alloying parameters, some physical properties, such as the heats of formation, the lattice parameters, and dilute heat of solution of binary alloys have been studied. The phase diagram of Cu-Al system is very complex and exhibits many stable or meta-stable intermetallics [38][39][40][41]. Fig.…”

“…The heats of formation for disordered solid solution and selected intermetallics in comparison with available experimental, first-principles and semiempirical potentials data[28,[38][39][40][41]. The full symbols mean the heats of formation of stable intermetallics while the empty ones stand for metastable phases with the same composition.…”

Thermodynamic Approach for Amorphous Alloys from Binary to Multicomponent Systems

“…However, such an approach has neglected the role of ternary interaction parameters and the relative compositions of the individual binaries, since the partitioning coefficients need not be the same for all the binaries. A number of work has attempted to improve on this extended Miedema's approach to multicomponent glass-forming alloy systems (Goncalves & Almeida, 1996;Zhang & Jesser, 2002;Herbst, 2002;Shindo et al, 2002;de Tendler et al, 2006; Ouyang et al, 2006aOuyang et al, , 2006bZhang et al, 2007;Bera et al, 2007;Wang et al, 2007). All these amended extensions have their own pros and cons.…”

“…(Gallego et al, 1990) while adding an entropy component to estimate the Gibbs free energy. Ouyang et al (Ouyang et al, 2006a(Ouyang et al, , 2006b) used a geometric approach similar to Toop's approach (Saunders & Miodownik, 1998). However, it is known that Toop's approach is largely applicable to ionic solids rather than metallic materials.…”