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Au–Fe alloy solidification and solid-state transformations / D. Favez in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 1016-1025 Titre : Au–Fe alloy solidification and solid-state transformations Type de document : texte imprimé Auteurs : D. Favez, Auteur ; J.-D. Wagnière, Auteur ; M. Rappaz, Auteur Article en page(s) : pp. 1016-1025 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Au–Fe  Differential  thermal  analysis  (DTA)  Peritectic  solidification  Discontinuous  precipitation  Coherency  relationship Index. décimale : 669 Métallurgie Résumé : In order to better understand the microstructure that forms during laser welding of an 18 carat gold and an austenitic stainless steel, solidification of the Au–Fe binary analog has been studied using thermal analysis and interrupted Bridgman experiments. For a hypoperitectic composition, the formation of the primary phase, its coarsening and the peculiar macrosegregation associated with the large density difference between the elements have been studied. Just after the peritectic phase forms around the primary dendrites, continuous and discontinuous precipitation has been shown to occur as a result of the immiscibility of the two face-centered cubic phases below the peritectic temperature. Finally, the solid-state transformations associated with the eutectoid have been characterized. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...] [article] Au–Fe alloy solidification and solid-state transformations [texte imprimé] / D. Favez, Auteur ; J.-D. Wagnière, Auteur ; M. Rappaz, Auteur . - pp. 1016-1025. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 1016-1025 Mots-clés : Au–Fe  Differential  thermal  analysis  (DTA)  Peritectic  solidification  Discontinuous  precipitation  Coherency  relationship Index. décimale : 669 Métallurgie Résumé : In order to better understand the microstructure that forms during laser welding of an 18 carat gold and an austenitic stainless steel, solidification of the Au–Fe binary analog has been studied using thermal analysis and interrupted Bridgman experiments. For a hypoperitectic composition, the formation of the primary phase, its coarsening and the peculiar macrosegregation associated with the large density difference between the elements have been studied. Just after the peritectic phase forms around the primary dendrites, continuous and discontinuous precipitation has been shown to occur as a result of the immiscibility of the two face-centered cubic phases below the peritectic temperature. Finally, the solid-state transformations associated with the eutectoid have been characterized. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235556%23 [...]

Au–Fe alloy solidification and solid-state transformations / D. Favez in Acta materialia, Vol. 58 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 1016–1025 Titre : Au–Fe alloy solidification and solid-state transformations Type de document : texte imprimé Auteurs : D. Favez, Auteur ; J.-D. Wagnière, Auteur ; M. Rappaz, Auteur Année de publication : 2011 Article en page(s) : pp. 1016–1025 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Au–Fe  Differential  thermal  analysis  (DTA)  Peritectic  solidification  Discontinuous  precipitation  Coherency  relationship Résumé : In order to better understand the microstructure that forms during laser welding of an 18 carat gold and an austenitic stainless steel, solidification of the Au–Fe binary analog has been studied using thermal analysis and interrupted Bridgman experiments. For a hypoperitectic composition, the formation of the primary phase, its coarsening and the peculiar macrosegregation associated with the large density difference between the elements have been studied. Just after the peritectic phase forms around the primary dendrites, continuous and discontinuous precipitation has been shown to occur as a result of the immiscibility of the two face-centered cubic phases below the peritectic temperature. Finally, the solid-state transformations associated with the eutectoid have been characterized. DEWEY : 1359-6454 ISSN : 669 En ligne : http://www.sciencedirect.com/science/article/pii/S135964540900696X [article] Au–Fe alloy solidification and solid-state transformations [texte imprimé] / D. Favez, Auteur ; J.-D. Wagnière, Auteur ; M. Rappaz, Auteur . - 2011 . - pp. 1016–1025. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 3 (Fevrier 2010) . - pp. 1016–1025 Mots-clés : Au–Fe  Differential  thermal  analysis  (DTA)  Peritectic  solidification  Discontinuous  precipitation  Coherency  relationship Résumé : In order to better understand the microstructure that forms during laser welding of an 18 carat gold and an austenitic stainless steel, solidification of the Au–Fe binary analog has been studied using thermal analysis and interrupted Bridgman experiments. For a hypoperitectic composition, the formation of the primary phase, its coarsening and the peculiar macrosegregation associated with the large density difference between the elements have been studied. Just after the peritectic phase forms around the primary dendrites, continuous and discontinuous precipitation has been shown to occur as a result of the immiscibility of the two face-centered cubic phases below the peritectic temperature. Finally, the solid-state transformations associated with the eutectoid have been characterized. DEWEY : 1359-6454 ISSN : 669 En ligne : http://www.sciencedirect.com/science/article/pii/S135964540900696X