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Article Dans Une Revue IEEE Transactions on Magnetics Année : 2011

Eddy-current modeling of a continous conductivity profile resulting from a diffusion process

Résumé

This paper deals with the modelisation Eddy-Current measurements over combustion turbine blade coatings affected by depletion of aluminium. First, we model the response of an Eddy-Current coil over a layered metallic structure with a top over-aluminized coating by extending the analytical Uzal-Rose's model for one hyperbolic tangent conductivity profile to a conductivity profile using two hyperbolic tangents for taking inward and outward depletion of aluminum inside the coating into account. Results obtained with this model are similar to those obtained with a numerical multi-layer model but with a reduced computing time.
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Dates et versions

hal-00617541 , version 1 (13-09-2011)

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Marc Lambert, Frédéric Nouguier, Riadh Zorgati. Eddy-current modeling of a continous conductivity profile resulting from a diffusion process. IEEE Transactions on Magnetics, 2011, 47 (8), pp.2093--2099. ⟨10.1109/TMAG.2011.2128877⟩. ⟨hal-00617541⟩
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