An experimental study of the solidification thermal parameters influence upon microstructure and mechanical properties of Al-Si-Cu alloys

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dc.contributor.authorNASCIMENTO, MAURICIO S.
dc.contributor.authorFRANCO, ANTONIO T.R.
dc.contributor.authorFRAJUCA, CARLOS
dc.contributor.authorNAKAMOTO, FRANCISCO Y.
dc.contributor.authorSANTOS, GIVANILDO A. dos
dc.contributor.authorCOUTO, ANTONIO A.
dc.coverageInternacionalpt_BR
dc.date.accessioned2018-12-06T16:03:57Z
dc.date.available2018-12-06T16:03:57Z
dc.date.issued2018pt_BR
dc.description.abstractMetals solidification involves the transformation of the molten metal back into the solid state. Solidification structures impact heavily on the final product's characteristics. The microstructure effects on metallic alloys properties have been highlighted in various studies and particularly the dendrite arm spacing influence upon the mechanical properties such as tensile strength has been reported. In the present investigation, Al-10wt%Si-2wt%Cu and Al-10wt%Si-5wt%Cu alloys were directionally solidified upward under transient heat flow conditions. The experimental results include solidification thermal parameters such as tip growth rate and cooling rate, optical microscopy, volume fraction of the eutectic mixture, primary dendritic arm spacing and ultimate tensile strength. Experimental growth laws of primary dendrite arm spacing as a function of the solidification thermal parameters are proposed. The Hall-Petch mathematical expressions were used to correlate the ultimate tensile strength as a function of the primary dendritic arm spacing. It was found that the alloy with higher copper content had a more refined structure. More refined structures had higher ultimate tensile strength values.pt_BR
dc.identifier.citationNASCIMENTO, MAURICIO S.; FRANCO, ANTONIO T.R.; FRAJUCA, CARLOS; NAKAMOTO, FRANCISCO Y.; SANTOS, GIVANILDO A. dos; COUTO, ANTONIO A. An experimental study of the solidification thermal parameters influence upon microstructure and mechanical properties of Al-Si-Cu alloys. <b>Materials Research</b>, v. 21, n. 5, 2018. DOI: <a href="https://dx.doi.org/10.1590/1980-5373-MR-2017-0864">10.1590/1980-5373-MR-2017-0864</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/29330.
dc.identifier.doi10.1590/1980-5373-MR-2017-0864pt_BR
dc.identifier.fasciculo5pt_BR
dc.identifier.issn1516-1439pt_BR
dc.identifier.orcidaguardandopt_BR
dc.identifier.percentilfi16.89pt_BR
dc.identifier.percentilfiCiteScore47.75
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/29330
dc.identifier.vol21pt_BR
dc.relation.ispartofMaterials Researchpt_BR
dc.rightsopenAccesspt_BR
dc.subjectsolidification
dc.subjectmechanical properties
dc.subjectmicrostructure
dc.subjectdendrites
dc.subjectaluminium alloys
dc.subjectsilicon
dc.subjectcopper
dc.subjecteutectics
dc.subjecttensile properties
dc.titleAn experimental study of the solidification thermal parameters influence upon microstructure and mechanical properties of Al-Si-Cu alloyspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorANTONIO AUGUSTO COUTO
ipen.codigoautor394
ipen.contributor.ipenauthorANTONIO AUGUSTO COUTO
ipen.date.recebimento18-12pt_BR
ipen.identifier.fi1.104pt_BR
ipen.identifier.fiCiteScore2.0
ipen.identifier.ipendoc25123pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi0.001 - 1.499
ipen.range.percentilfi0.00 - 24.99
ipen.type.genreArtigo
relation.isAuthorOfPublicationbde343ec-1219-4f47-ab31-55e822cd2ade
relation.isAuthorOfPublication.latestForDiscoverybde343ec-1219-4f47-ab31-55e822cd2ade
sigepi.autor.atividadeCOUTO, ANTONIO A.:394:730:Npt_BR
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