Abstract
Interdiffusion in a Cu-Ni-Fe system was studied at a temperature of 1000°C for three different diffusion couples. It has been shown that, in the studied diffusion couples, the distributions of some components of the system have a distinctly nonmonotonous character and, apart from the local extremes of the concentration curves, there are also zero flux planes in five diffusion zones. Special features of the behavior of the concentration curves and diffusion paths are discussed using thermodynamic data for the system. It has been found that diffusion fluxes of the components are unambiguously associated with a derivative of thermodynamic activity by the concentration taken along the diffusion path. There are experimental data in the appendix concerning the concentration profiles for all of the studied components of the diffusion couples.
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Original Russian Text © Yu.E. Ugaste, A.A. Kodentsov, F. van Loo, 2012, published in Fizika Metallov i Metallovedenie, 2012, Vol. 113, No. 12, pp. 1251–1262.
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Ugaste, Y.E., Kodentsov, A.A. & van Loo, F. Redistribution of concentration of components during interdiffusion in Cu-Fe-Ni system. Phys. Metals Metallogr. 113, 1182–1192 (2012). https://doi.org/10.1134/S0031918X12120125
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DOI: https://doi.org/10.1134/S0031918X12120125