Cooling Thermal Parameters, Microstructural Spacing And Mechanical Properties In A Directionally Solidified Hypereutectic Al-si Alloy

dc.creatorReyes
dc.creatorRodrigo V.; Kakitani
dc.creatorRafael; Costa
dc.creatorThiago A.; Spinelli
dc.creatorJose E.; Cheung
dc.creatorNoe; Garcia
dc.creatorAmauri
dc.date2016
dc.date2017-11-13T13:12:04Z
dc.date2017-11-13T13:12:04Z
dc.date.accessioned2018-03-29T05:50:18Z
dc.date.available2018-03-29T05:50:18Z
dc.identifierPhilosophical Magazine Letters. Taylor & Francis Ltd, v. 96, p. 228 - 237, 2016.
dc.identifier0950-0839
dc.identifier1362-3036
dc.identifierWOS:000379764000004
dc.identifier10.1080/09500839.2016.1192297
dc.identifierhttp://www.tandfonline.com/doi/full/10.1080/09500839.2016.1192297
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/326793
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1363818
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionTransient directional solidification experiments have been carried out with an Al-15wt. %Si alloy under cooling rates (http://www.w3.org/1999/xlink" xlink:href="tphl_a_1192297_ilm0001.gif") from 0.2 to 54K/s. A mixture of globular and fibre-like Si particles within the eutectic is shown to occur for cooling rates (http://www.w3.org/1999/xlink" xlink:href="tphl_a_1192297_ilm0002.gif")>9K/s. The presence of refined globular Si particles arranging the microstructure either as primary particles or within the eutectic mixture seems to contribute for a combination of high tensile strength (sigma(u)) and elongation (). It is shown by correlations between eutectic () and secondary dendrite ((2)) spacings and sigma(u) and , given by Hall-Petch type formulae that the tensile properties increase significantly with the decrease in these spacings. However, it is shown that for higher ranges of spacings, i.e.: (-1/2)<0.65 and (-1/2)(2)<0.18, both tensile strength and elongation remain unaltered.
dc.description96
dc.description6
dc.description228
dc.description237
dc.descriptionFAPESP-Sao Paulo Research Foundation, Brazil [2015/11863-5, 2014/50502-5]
dc.descriptionCNPq (The Brazilian Research Council)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageEnglish
dc.publisherTaylor & Francis Ltd
dc.publisherAbingdon
dc.relationPhilosophical Magazine Letters
dc.rightsfechado
dc.sourceWOS
dc.subjectSolidification
dc.subjectMicrostructure
dc.subjectCooling Thermal Parameters
dc.subjectMechanical Properties
dc.titleCooling Thermal Parameters, Microstructural Spacing And Mechanical Properties In A Directionally Solidified Hypereutectic Al-si Alloy
dc.typeArtículos de revistas


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