A 2-D nucleation-growth model of spheroidal graphite

Abstract : Analysis of recent experimental investigations, in particular by transmission electron microscopy, suggests spheroidal graphite grows by 2-D nucleation of new graphite layers at the outer surface of the nodules. These layers spread over the surface along the prismatic direction of graphite which is the energetically preferred growth direction of graphite when the apparent growth direction of the nodules is along the basal direction of graphite. 2-D nucleation-growth models first developed for precipitation of pure substances are then adapted to graphite growth from the liquid in spheroidal graphite cast irons. Lateral extension of the new graphite layers is controlled by carbon diffusion in the liquid. This allows describing quantitatively previous experimental results giving strong support to this approach.
Liste complète des métadonnées

Littérature citée [30 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01580469
Contributeur : Open Archive Toulouse Archive Ouverte (oatao) <>
Soumis le : vendredi 1 septembre 2017 - 15:40:09
Dernière modification le : mardi 11 septembre 2018 - 15:18:22
Document(s) archivé(s) le : samedi 2 décembre 2017 - 14:07:32

Fichier

Lacaze_18122.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Jacques Lacaze, Jacques Bourdie, Manuel Jesus Castro-Román. A 2-D nucleation-growth model of spheroidal graphite. Acta Materialia, Elsevier, 2017, vol. 134, pp. 230-235. 〈10.1016/j.actamat.2017.05.032〉. 〈hal-01580469〉

Partager

Métriques

Consultations de la notice

79

Téléchargements de fichiers

108