Monotectic Al-bi-sn Alloys Directionally Solidified: Effects Of Bi Content, Growth Rate And Cooling Rate On The Microstructural Evolution And Hardness

dc.creatorCosta
dc.creatorThiago A.; Freitas
dc.creatorEmmanuelle S.; Dias
dc.creatorMarcelino; Brito
dc.creatorCrystopher; Cheung
dc.creatorNoe; Garcia
dc.creatorAmauri
dc.date2015-DEC
dc.date2016-06-07T13:36:10Z
dc.date2016-06-07T13:36:10Z
dc.date.accessioned2018-03-29T01:51:35Z
dc.date.available2018-03-29T01:51:35Z
dc.identifier
dc.identifierMonotectic Al-bi-sn Alloys Directionally Solidified: Effects Of Bi Content, Growth Rate And Cooling Rate On The Microstructural Evolution And Hardness. Elsevier Science Sa, v. 653, p. 243-254 DEC-2015.
dc.identifier0925-8388
dc.identifierWOS:000363270000033
dc.identifier10.1016/j.jallcom.2015.09.009
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S0925838815309853
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/244261
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1307959
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionAl-based monotectic alloys can have interesting tribological characteristics with the solute acting as a solid lubricant, while the matrix provides required structural integrity. The addition of third elements can increase the alloy load capacity. The microstructural features of these alloys, such as morphology, distribution and length scale of the phases depend strongly on the parameters of their manufacture route. In the present study monotectic Al-Bi-Sn alloys were directionally solidified (DS) under a large range of experimental cooling rates, permitting a wide spectrum of microstructural scales to be examined. Experimental correlations between the microstructure interphase spacing and solidification cooling rate and growth rate are proposed. Despite a slight increase in hardness with smaller interphase spacings for regions closer to the cooled surface of the DS alloys castings having 2 and 3.2wt.%Bi, it is shown that the Bi content of the alloy has not a significant effect on hardness. It is also shown that the experimental correlations established between the cooling rate and both the interphase spacing and area fractions of droplets of the eutectic mixture can be used in the tailoring of the microstructure of Al-Bi-Sn alloys with a view to applications in the manufacture of wear resistant components. (C) 2015 Elsevier B.V. All rights reserved.
dc.description653
dc.description
dc.description
dc.description243
dc.description254
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2012/08494-0, 2013/09267-0, 2013/23396-7, 2014/50502-5]
dc.description
dc.description
dc.description
dc.languageen
dc.publisherELSEVIER SCIENCE SA
dc.publisher
dc.publisherLAUSANNE
dc.relationJOURNAL OF ALLOYS AND COMPOUNDS
dc.rightsembargo
dc.sourceWOS
dc.subjectPhase-separation
dc.subjectAluminum-alloys
dc.subjectMiscibility Gap
dc.subjectFabrication
dc.titleMonotectic Al-bi-sn Alloys Directionally Solidified: Effects Of Bi Content, Growth Rate And Cooling Rate On The Microstructural Evolution And Hardness
dc.typeArtículos de revistas


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