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Resampling technique applied to the characterization of microsegregation

Eiken, Janin and Floquet, Pascal and Hazotte, Alain and Lacaze, Jacques Resampling technique applied to the characterization of microsegregation. (2009) In: Modeling of casting, welding, and advanced solidification processes XII , 7 June 2009 - 14 June 2009 (Vancouver, Canada). (Unpublished)

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Abstract

Characterization of short-range chemical heterogeneities in metallic materials, such as the so-called microsegregation resulting from solidification, is most often performed using EDS or WDS spot measurements. The most usual way is to perform countings on points located along a regular grid. Due to experimental limitation, the grid step is generally of the same order of magnitude than the characteristic distance(s) of the chemical heterogeneities under investigation. In such a case, the measurements can not be assumed to be independent one from each other, and the resulting interferences (correlations) preclude application of simple statistics to the solute distribution obtained. In the present work, this is clearly shown by using a resampling technique applied to "chemical" images obtained by phase field modelling.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to The Minerals, Metals & Materials Society (TMS) http://www.tms.org
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:Other partners > ACCESS (GERMANY)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Nationale d’Ingénieurs de Metz - ENIM (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université Paul-Verlaine - Metz (FRANCE)
Laboratory name:
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Deposited By: Pascal FLOQUET
Deposited On:07 Nov 2013 11:32

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