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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleFe-Al-Nb phase diagram investigation and directional growth of the (Fe,Al)(2)Nb-(Fe, Al, Nb)(ss) eutectic systempt_BR
dc.contributor.authorMota, MApt_BR
dc.contributor.authorCoelho, AApt_BR
dc.contributor.authorBejarano, JMZpt_BR
dc.contributor.authorGama, Spt_BR
dc.contributor.authorCaram, Rpt_BR
unicamp.author.emailrcaram@fem.unicamp.brpt_BR
unicamp.authorUniv Estadual Campinas, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjecteutectic alloyspt_BR
dc.subjectdirectional solidificationpt_BR
dc.subjectcompositespt_BR
dc.subject.wosMechanical-propertiespt_BR
dc.subject.wosTransitionpt_BR
dc.description.abstractAn attractive alternative method for the manufacture of high temperature structural materials may be achieved from a eutectic transformation found in the Fe-Al-Nb system, which generates the (Fe, Al)(2)Nb and (Fe, At, Nb)(ss) solid phases. Eutectic and off-eutectic samples from the Fe-Al-Nb system were prepared by arc melting under argon atmosphere, which were subsequently directionally solidified using a vertical Bridgman crystal growth unit. The ingots obtained were investigated using optical and electron scanning microscopy with the purpose to evaluate the effect of the growth condition on the microstructure. Primarily, the growth mode of the (Fe, Al)(2)Nb/(Fe, Al, Nb) eutectic was considered by examining off-eutectic samples. The solidification experiments carried out under different conditions revealed that the microstructure of this system is very sensitive to a growth rate variation. At a low growth rate, the eutectic microstructure was regular, even though several types of defects were found. As the growth rate was increased, a transition from lamellar to fibrous morphology was observed. Some aspects of this transition were also evaluated. (c) 2005 Elsevier B.V All rights reserved.pt
dc.relation.ispartofJournal Of Alloys And Compoundspt_BR
dc.relation.ispartofabbreviationJ. Alloy. Compd.pt_BR
dc.publisher.cityLausannept_BR
dc.publisher.countrySuíçapt_BR
dc.publisherElsevier Science Sapt_BR
dc.date.issued2005pt_BR
dc.date.monthofcirculationAUG 16pt_BR
dc.identifier.citationJournal Of Alloys And Compounds. Elsevier Science Sa, v. 399, n. 41671, n. 196, n. 201, 2005.pt_BR
dc.language.isoenpt_BR
dc.description.volume399pt_BR
dc.description.issuenumber41671pt_BR
dc.description.firstpage196pt_BR
dc.description.lastpage201pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policypt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0925-8388pt_BR
dc.identifier.wosidWOS:000230614600035pt_BR
dc.identifier.doi10.1016/j.jallcom.2005.03.038pt_BR
dc.date.available2014-11-19T04:30:07Z
dc.date.available2015-11-26T17:02:03Z-
dc.date.accessioned2014-11-19T04:30:07Z
dc.date.accessioned2015-11-26T17:02:03Z-
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dc.description.provenanceMade available in DSpace on 2015-11-26T17:02:03Z (GMT). No. of bitstreams: 2 WOS000230614600035.pdf: 730091 bytes, checksum: 2d36e7ff67844c1084eb8a72b70b281b (MD5) WOS000230614600035.pdf.txt: 18477 bytes, checksum: 143430418de1d362ade951612a5e13e1 (MD5) Previous issue date: 2005en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66825pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/66825
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66825-
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