On the basis of published CALPHAD-type thermodynamic parameters, the atomic mobilities of Ag and Au in face-centered cubic Ag-Au alloys were critically assessed, where self-diffusion coefficients, impurity diffusion coefficients, tracer diffusion coefficients, interdiffusion coefficients and concentration curves were simultaneously optimized. Good agreement was obtained by making comprehensive comparisons between the calculated and experimentally measured values. In addition, the developed mobilities were successfully used to study inert marker movement for one-dimensional and two-dimensional cases.

Study of Diffusion and Marker Movement in FCC Ag-Au Alloys. Y.Liu, L.Zhang, D.Yu, Y.Ge: Journal of Phase Equilibria and Diffusion, 2008, 29[5], 405-13