A Review of Side-lined Chunky Graphite Phenomena

Considerable insight into Chunky graphite formation models and their corresponding mechanisms can be derived from revisiting graphite nucleation mechanisms in ductile iron. In particular, several unified theories related to the nucleation and growth of nodular graphite, need to be considered before...

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Detalles Bibliográficos
Autores principales: Borgström, H., Fourlakidis, V.
Formato: Artículo
Lenguaje:Inglés
Publicado: INTEMA - UNMdP-CONICET 2014
Acceso en línea:10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
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Sumario:Considerable insight into Chunky graphite formation models and their corresponding mechanisms can be derived from revisiting graphite nucleation mechanisms in ductile iron. In particular, several unified theories related to the nucleation and growth of nodular graphite, need to be considered before Chunky graphite formation models and their corresponding mechanisms can be derived. This is justified by high resolution microscopy of quenching experiments, which elucidates that the formation of unwanted graphite forms like chunky occur shortly after graphite nucleation during eutectic solidification. Therefore it is the intension of this review to tie a number of nucleation theories stronger to events that have been shown to promote Chunky graphite formation. In particular a number of studies including radiography and spectroscopy will be reviewed that will shed new light into the Chunky graphite formation mechanism.