Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes

The article concerns the influence of grey cast iron density and different trials of fraction of solid curves (influencing latent heat generation) on the formation of shrinkage discontinuities. Two alternatives of density curves were considered (Rho=f(T)): the classical one, (usually applied in macr...

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Autores principales: Ignaszak, Z., Codina, E., Hajkowski, J., Popielarski, P., Roquet, P.
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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institution Universidad Nacional de Mar del Plata (UNMdP)
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repository_str R-182
container_title_str RINFI - Facultad de Ingeniería (UNLdP)
language Inglés
format Artículo
author Ignaszak, Z.
Codina, E.
Hajkowski, J.
Popielarski, P.
Roquet, P.
spellingShingle Ignaszak, Z.
Codina, E.
Hajkowski, J.
Popielarski, P.
Roquet, P.
Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
author_facet Ignaszak, Z.
Codina, E.
Hajkowski, J.
Popielarski, P.
Roquet, P.
author_sort Ignaszak, Z.
title Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
title_short Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
title_full Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
title_fullStr Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
title_full_unstemmed Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes
title_sort selected aspects of the use of thermal & derivative analysis to improve macro modeling of solidification for casting iron. comparison of chosen simulation codes
description The article concerns the influence of grey cast iron density and different trials of fraction of solid curves (influencing latent heat generation) on the formation of shrinkage discontinuities. Two alternatives of density curves were considered (Rho=f(T)): the classical one, (usually applied in macro model simulation codes) and the modified one, which includes graphite expansion (based on compensation of primary shrinkage discontinuities during eutectic phase crystallization). Solid fraction curves applying Newtonian Thermal Analysis (NTA) were estimated. The experimental and numerical simulation tests were performed on the castings, which were made with Derivative Thermal Analysis (DerTA) standard cups and in furan-bonded sand cube mould of 250 mm side and a upper riser 140x200 mm The numerical tests were realized using NovaFlow&Solid (NF&S) and ProCast codes. Also, some tests were realized using ProCast with a micro model (default value parameters). In this work, the coupled influence of both curves on the dynamics of the shrinkage-expansion phenomena and on shrinkage defects prognosis in grey cast iron castings has been revealed.
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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