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Modelling of the evolution of iron passivity: solving the moving boundaries problem

Published online by Cambridge University Press:  27 March 2012

Frantz A. Martin  and
Christian Bataillon
Frantz A. Martin
Affiliation:
CEA, DEN, DPC, SCCME, Laboratoire d’Etude de la Corrosion Aqueuse, F-91191 Gif-sur-Yvette
Christian Bataillon
Affiliation:
CEA, DEN, DPC, SCCME, Laboratoire d’Etude de la Corrosion Aqueuse, F-91191 Gif-sur-Yvette
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Abstract

In the framework of long term prediction of corrosion in French geological repository systems, the modelling of the time evolution of the corrosion rate of iron over centuries is of high matter. The DPCM (Diffusion Poisson Coupled Model), implemented with the fully implicit CALIPSO numerical code can give access to the evolution of the oxide thickness grown on iron and the resulting corrosion rate. DPCM parameters for outer interfacial reactions have been set to fit to XANES experimental data provided by literature, and then the parameters for inner reaction rates have been evaluated from fitting to ellipsometry results taken from literature. The result is a good average fitting of the model to the experimental data.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1475: Symposium NW – Scientific Basis for Nuclear Waste Management XXXV , 2012 , imrc11-1475-nw35-o57
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

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