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RESEARCH PRODUCT
Numerical Determination of Intrinsic Diffusion in Fe-Cr-Al Systems
Sébastien ChevalierOlivier PolitanoMarek DanielewskiBartłomiej Wierzbasubject
RadiationChemistryIntermetallicThermodynamicsCondensed Matter PhysicsDiffusion layersymbols.namesakeScientific methodsymbolsEffective diffusion coefficientGrain boundary diffusion coefficientGeneral Materials ScienceNernst equationDiffusion (business)Aluminidedescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-04-01 | Defect and Diffusion Forum |