Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings

dc.creatorSvidró, P.
dc.creatorElmquist, L.
dc.creatorDugic, I.
dc.creatorDiószegi, A.
dc.date2014-11-13
dc.date.accessioned2023-03-24T14:36:59Z
dc.date.available2023-03-24T14:36:59Z
dc.identifier10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November.
dc.identifier978-987-45833-0-7
dc.identifierhttp://rinfi.fi.mdp.edu.ar/xmlui/handle/123456789/48
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6280624
dc.descriptionShrinkage porosity and metal expansion penetration are two fundamental defects appearing during the production of complex shaped lamellar cast iron components. Simplified test models simulating the thermal and geometrical conditions existing in complex shaped castings have been successfully used to provoke shrinkage porosity and metal expansion penetration. A stereological investigation of the primary dendrite morphology indicates a maximum intra-dendritic space in connection with the casting surface where the porosity and the penetration defects appear. Away from the defect formation area the intra-dendritic space decreases. Comparison of the simulated local solidification times and measured intra-dendritic space indicates a strong relation which can be explained by the dynamic ripening process. The slow local solidification time situated at the boundary between the casting surface and its surrounding is explained to be the reason for the formation of an austenite morphology which can promote mass flow between dendrites, thereby provoking shrinkage porosity or metal expansion penetration.
dc.languageen
dc.publisherINTEMA - UNMdP-CONICET
dc.subjectLamellar Cast Iron
dc.subjectPrimary Austenite
dc.subjectDendrite Morphology
dc.subjectCoarsening
dc.subjectShrinkage Porosity
dc.subjectMetal Expansion Penetration
dc.titleCharacterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
dc.typeOther


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