Artículo
Growth of eutectic austenite in free graphite cast irons
Fecha de publicación:
01/2011
Editorial:
Trans Tech Publications
Revista:
Key Engineering Materials
ISSN:
1013-9826
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The present work investigates the growth of the eutectic austenite of hypereutectic free graphite cast irons of different graphite morphology. The study was based on the analysis of several samples obtained from a highly hypereutectic cast iron melt. A hypereutectic melt was used in order to ensure the absence of proeutectic austenite. With the aim of obtaining samples of different graphite morphology but nearly identical chemical composition, the melt was nodularized by using a standard procedure, and different samples were cast after various fading periods. Through this procedure, spheroidal, vermicular and flake graphite samples were obtained The results show that the eutectic austenite grows dendritically in all samples investigated. Nevertheless, significant differences were found in the size of the solidification units (grains) and in the microsegregation patterns as the graphite morphology changes from spheroidal to flake.
Palabras clave:
Austenite Growth
,
Free Graphite Cast Iron
,
Macrostructure
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INTEMA)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Articulos de INST.DE INV.EN CIENCIA Y TECNOL.MATERIALES (I)
Citación
Rivera, Graciela Leonor; Boeri, Roberto Enrique; Sikora, Jorge Antonio; Growth of eutectic austenite in free graphite cast irons; Trans Tech Publications; Key Engineering Materials; 457; 1-2011; 67-72
Compartir
Altmétricas