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Titre: Pearlite in hypoeutectoid iron-nitrogen binary alloys
Auteur(s): X. C. Xiong, A. Redjaïmia et M. Goune
Journal: Journal of Materials Science
Année: 2009
Volume: 44
Issue: 2
Pages: 632-638
DOI: 10.1007/s10853-008-3054-7
ISSN: 0022-2461
Résumé: In this study, hypoeutectoid Fe-N binary specimens have been prepared by gas nitriding pure iron in austenite domain at 840 A degrees C. The slow cooling of these specimens led to the alpha-ferrite + gamma'-Fe(4)N pearlitic microstructure which is similar to the pearlite in Fe-C binary system. This pearlitic microstructure has been characterized by electron microscopy. The crystal structure of the gamma'-Fe(4)N nitride has been identified by electron microdiffraction and the Nishiyama-Wassermann (N-W) and near Kurdjumov-Sachs (K-S) orientation relationships have been found between the alpha-ferrite and the gamma'-Fe(4)N.
Projet: Département SI2M : Microstructures et Contraintes

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