Paper Title:
The Influence of Thermodynamic Properties of Alloys on Effective Interdiffusion Coefficients in Ternary Systems
  Abstract

To prove the validity of Dayananda’s phenomenological model of interdiffusion in ternary systems the effective interdiffusion coefficients for a few diffusion couples in the system Cu-Ni-Fe, annealed at 1000 oC, are calculated on the basis of this model using available tracer diffusion and thermodynamic data. It is found that the calculated values of effective interdiffusion coefficients are in reasonable agreement with experimental values extracted independently from experimental concentration--penetration curves. Using the relationship between effective interdiffusion coefficients, tracer diffusion coefficients and thermodynamic factors, it is shown that thermodynamic properties of alloys play a significant role in interdiffusion processes in the system Cu-Fe-Ni.

  Info
Periodical
Edited by
J. Čermák and I. Stloukal
Pages
141-146
DOI
10.4028/www.scientific.net/DDF.263.141
Citation
Ü. Ugaste, T. Laas, T. Škled-Gorbatšova, "The Influence of Thermodynamic Properties of Alloys on Effective Interdiffusion Coefficients in Ternary Systems", Defect and Diffusion Forum, Vol. 263, pp. 141-146, 2007
Online since
March 2007
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