Cellular spacings in unsteady-state directionally solidified Sn-Pb alloys

dc.creatorRocha, OL
dc.creatorSiqueira, CA
dc.creatorGarcia, A
dc.date2003
dc.date45962
dc.date2014-11-20T07:17:28Z
dc.date2015-11-26T16:08:41Z
dc.date2014-11-20T07:17:28Z
dc.date2015-11-26T16:08:41Z
dc.date.accessioned2018-03-28T22:57:15Z
dc.date.available2018-03-28T22:57:15Z
dc.identifierMaterials Science And Engineering A-structural Materials Properties Microstructure And Processing. Elsevier Science Sa, v. 361, n. 41671, n. 111, n. 118, 2003.
dc.identifier0921-5093
dc.identifierWOS:000186354700015
dc.identifier10.1016/S0921-5093(03)00518-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78608
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/78608
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78608
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1266424
dc.descriptionSolidification thermal parameters, i.e. transient metal/mold heat transfer coefficient, tip growth rate and cooling rate, and cellular spacings have been measured in dilute Sn-Pb alloys solidified under unsteady-state heat flow conditions. It has been found that the cellular spacings decreased with increasing solute content up to the limit of the cellular range, at about 2 wt.% Pb. A sharp increase in spacing is observed when the growth morphology changes from cellular to cellular/dendritic. The Hunt-Lu's model applied to cellular growth did not generate the experimental observations for the alloys examined in the present study. It is proposed the insertion of analytical expressions for tip growth rate and cooling rate into the resulting experimental equations permitting to establish empirical formulae relating cellular spacings with unsteady-state solidification parameters like: melt superheat, type of mold and transient metal/mold heat transfer coefficient. (C) 2003 Elsevier B.V. All rights reserved.
dc.description361
dc.description41671
dc.description111
dc.description118
dc.languageen
dc.publisherElsevier Science Sa
dc.publisherLausanne
dc.publisherSuíça
dc.relationMaterials Science And Engineering A-structural Materials Properties Microstructure And Processing
dc.relationMater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectunsteady-state directional solidification
dc.subjectcellular spacings
dc.subjectSn-Pb alloys
dc.subjectAl-cu Alloys
dc.subjectUnidirectional Solidification
dc.subjectDendrite Spacings
dc.subjectMechanical-properties
dc.subjectEquiaxed Transition
dc.subjectMathematical-model
dc.subjectHeat-flow
dc.subjectGrowth
dc.subjectPrediction
dc.subjectSelection
dc.titleCellular spacings in unsteady-state directionally solidified Sn-Pb alloys
dc.typeArtículos de revistas


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