Semi-solid behavior of new Al-Si-Mg alloys for thixoforming

dc.creatorPaes, A
dc.creatorZoqui, EJ
dc.date2005
dc.dateOCT 15
dc.date2014-11-18T07:17:08Z
dc.date2015-11-26T16:52:23Z
dc.date2014-11-18T07:17:08Z
dc.date2015-11-26T16:52:23Z
dc.date.accessioned2018-03-28T23:39:20Z
dc.date.available2018-03-28T23:39:20Z
dc.identifierMaterials Science And Engineering A-structural Materials Properties Microstructure And Processing. Elsevier Science Sa, v. 406, n. 41671, n. 63, n. 73, 2005.
dc.identifier0921-5093
dc.identifierWOS:000232565100009
dc.identifier10.1016/j.msea.2005.07.018
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/71460
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/71460
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/71460
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1276268
dc.descriptionThere is a lack of specific alloys for thixoforming processes. Usually alloys from conventional casting processes were fitted to the thixoforming purpose, e.g. A356, A357. The aim of this study is to produce new Al-Si-Mg alloys specially tailored for thixoforming purpose. The as-rheocast: Al-7 wt%Si-0.5 wt%Mg, Al-4 wt%Si-0.5 wt%Mg, Al-1 wt%Si-0.5 wt%Mg, Al-7 wt%Si-1 wt%Mg, Al-4 wt%Si-1 wt%Mg and Al-1 wt%Si-1 wt%Mg were produced by grain refining. Thus, the effect of Si and Mg content on structure and rheological behavior of these new alloys was analyzed. To simulate the semi-solid behavior at a high temperature, the samples were re-heated to the semi-solid state to produce 45% solid fraction and their structural evolution was analyzed after 0, 90 and 210 s at this solid fraction. At the same temperature and holding time, the samples were submitted to a compression test using a parallel platen viscosimeter. Results showed that the grain/globule size increased as the Si and Mg content increased. Al-7 wt%Si-0.5 wt%Mg, the Al-4 wt%Si-0.5 wt%Mg and the Al-1 wt%Si-0.5 wt%Mg are suitable for thixoforming purposes. Al-Si alloys with 1.0 wt%Mg showed low apparent viscosity values. (c) 2005 Elsevier B.V. All rights reserved.
dc.description406
dc.description41671
dc.description63
dc.description73
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.subjectsemi-solid material
dc.subjectrheological behavior
dc.subjectaluminum-silicon-magnesium alloys
dc.subjectgrain refining
dc.subjectmorphological evolution
dc.subjectSsm A356
dc.subjectEvolution
dc.titleSemi-solid behavior of new Al-Si-Mg alloys for thixoforming
dc.typeArtículos de revistas


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