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

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dc.contributor.author Ignaszak, Z.
dc.contributor.author Codina, E.
dc.contributor.author Hajkowski, J.
dc.contributor.author Popielarski, P.
dc.contributor.author Roquet, P.
dc.date.accessioned 2015-04-06T19:03:59Z
dc.date.available 2015-04-06T19:03:59Z
dc.date.issued 2014-11-13
dc.identifier.citation 10 Th International Symposium on the Science and Processing of Cast Iron. 2014. Argentina: Mar del Plata 10 to 13th of November. es_AR
dc.identifier.isbn 978-987-45833-0-7
dc.identifier.uri http://rinfi.fi.mdp.edu.ar/xmlui/handle/123456789/35
dc.description.abstract 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. es_AR
dc.description.sponsorship Cámara de Industriales Fundidores de la República Argentina. Universidad Nacional de Mar del Plata. Consejo de Investigaciones Científicas y Técnicas. es_AR
dc.language.iso en es_AR
dc.publisher INTEMA - UNMdP-CONICET es_AR
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject Cast Iron es_AR
dc.subject Simulation Codes es_AR
dc.subject Macro/Micro Models es_AR
dc.subject Heat Source Function es_AR
dc.subject Porosity Defects es_AR
dc.title Selected Aspects of the Use of Thermal & Derivative Analysis to Improve Macro Modeling of Solidification for Casting Iron. Comparison of Chosen Simulation Codes es_AR
dc.type Other es_AR
dcterms.type Proceedings Paper


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