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

Shrinkage 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...

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Autores principales: Svidró, P., Elmquist, L., Dugic, I., Diószegi, A.
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.
Aporte de:
RINFI - Facultad de Ingeniería (UNLdP) de Universidad Nacional de Mar del Plata (UNMdP)
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record_format ojs
institution Universidad Nacional de Mar del Plata (UNMdP)
institution_str I-29
repository_str R-182
container_title_str RINFI - Facultad de Ingeniería (UNLdP)
language Inglés
format Artículo
author Svidró, P.
Elmquist, L.
Dugic, I.
Diószegi, A.
spellingShingle Svidró, P.
Elmquist, L.
Dugic, I.
Diószegi, A.
Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
author_facet Svidró, P.
Elmquist, L.
Dugic, I.
Diószegi, A.
author_sort Svidró, P.
title Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
title_short Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
title_full Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
title_fullStr Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
title_full_unstemmed Characterization of Primary Dendrite Morphology in Complex Shaped Lamellar Cast Iron Castings
title_sort characterization of primary dendrite morphology in complex shaped lamellar cast iron castings
description Shrinkage 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.
publisher INTEMA - UNMdP-CONICET
publishDate 2014
url 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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AT dioszegia characterizationofprimarydendritemorphologyincomplexshapedlamellarcastironcastings
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