Distribution of some active elements in primary graphite precipitates |
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Authors: | K Theuwissen T Duguet J Esvan J Lacaze |
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Affiliation: | 1. CIRIMAT, CNRS-Université de Toulouse, ENSIACET, BP 44362, 31030, Toulouse cedex 4, Francekoenraad.theuwissen@ensiacet.fr;3. CIRIMAT, CNRS-Université de Toulouse, ENSIACET, BP 44362, 31030, Toulouse cedex 4, France |
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Abstract: | The distributions of cerium and oxygen in the matrix and in graphite precipitates of a pure Fe–C–Ce cast iron sample have been studied using scanning Auger microscopy. It is shown that there is no accumulation of any element at the graphite-matrix interface. Cerium was detected in some cases in spheroidal graphite precipitates, most often associated with oxygen. Various non-spheroidal graphite precipitates proved to contain cerium and oxygen suggesting a correlation between cerium content and graphite degeneracy. |
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Keywords: | Ductile iron Graphite growth Auger analysis Cerium oxygen |
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