Influence of Chromium and Molybdenum in Solidification and Shrinkage Defects for High Resistance Grey Iron Alloys

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dc.contributor.author Stuewe, L.
dc.contributor.author Tschiptschin, A.P.
dc.contributor.author Guesser, W.L.
dc.contributor.author Fuoco, R.
dc.date.accessioned 2015-04-07T14:04:25Z
dc.date.available 2015-04-07T14:04:25Z
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/handle/123456789/53
dc.description.abstract This paper presents an evaluation of Cr and Mo influence in solidification and shrinkage defects in grey cast iron. A series of five grey cast irons were produced with different Cr and Mo additions. A test casting was developed by casting process simulation to reproduce defects of an specific cylinder head. Macroshrinkage cavities were detected in the top of the test parts and microshrinkage porosity defects were analyzed in the hot spots. Macroshrinkage volumes were measured by filling the cavities with water. The microshrinkage porosities were evaluated by liquid penetrant examination and image analysis. The solidification sequence and microstructure were evaluated by thermal analysis and metallography. Combinations of 0,4%, 0,6% and 1,00 % of Cr + Mo presented a significant increase in macroshrinkage volumes and combinations of 0,6% and 1,00% of Cr + Mo presented an increase of microshrinkage porosity. In solidification Cr and Mo increased undercooling, austenite pro-eutectic fraction volume, intercellular carbides, reduced the eutectic cell size and fraction volume of graphite. 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 Grey Cast Iron es_AR
dc.subject Shrinkage Defects es_AR
dc.subject Thermal Analysis es_AR
dc.subject Chromium and Molybdenum es_AR
dc.subject Simulation es_AR
dc.title Influence of Chromium and Molybdenum in Solidification and Shrinkage Defects for High Resistance Grey Iron Alloys es_AR
dc.type Other es_AR
dcterms.type Proceedings Paper


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