Paper Title:
Numerical Determination of Intrinsic Diffusion in Fe-Cr-Al Systems
  Abstract

The intrinsic diffusion coefficients in diffusion aluminide coatings based on Fe-30Cr were determined at 1000oC. The diffusion fluxes were given by the Nernst Planck formulae and the Darken method for multicomponent systems was applied. This paper summarizes some numerical results to determine the composition dependent diffusivities in Fe-Cr-Al systems. The method presented in this study to obtain average intrinsic diffusion coefficients is as an alternative to the Dayananda method. Our method based on empirical parameters allowed us to predict the concentration profile during the interdiffusion process.

  Info
Periodical
Defect and Diffusion Forum (Volumes 297-301)
Edited by
Andreas Öchsner, Graeme E. Murch, Ali Shokuhfar and João M.P.Q. Delgado
Pages
948-953
DOI
10.4028/www.scientific.net/DDF.297-301.948
Citation
B. Wierzba, O. Politano, S. Chevalier, M. Danielewski, "Numerical Determination of Intrinsic Diffusion in Fe-Cr-Al Systems", Defect and Diffusion Forum, Vols. 297-301, pp. 948-953, 2010
Online since
April 2010
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$32.00
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