Inter-relation of Microstructural Features and Dry Sliding Wear Behavior of Monotectic Al-Bi and Al-Pb Alloys

dc.creatorFreitas, ES
dc.creatorSilva, AP
dc.creatorSpinelli, JE
dc.creatorCasteletti, LC
dc.creatorGarcia, A
dc.date2014
dc.dateJUL
dc.date2014-07-30T14:34:04Z
dc.date2015-11-26T16:35:18Z
dc.date2014-07-30T14:34:04Z
dc.date2015-11-26T16:35:18Z
dc.date.accessioned2018-03-28T23:17:45Z
dc.date.available2018-03-28T23:17:45Z
dc.identifierTribology Letters. Springer/plenum Publishers, v. 55, n. 1, n. 111, n. 120, 2014.
dc.identifier1023-8883
dc.identifier1573-2711
dc.identifierWOS:000336729400012
dc.identifier10.1007/s11249-014-0338-8
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/60503
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/60503
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1271470
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionImmiscible Al-based alloys of monotectic composition have a particular feature of minority phases embedded into the Al-rich matrix. The disseminated particles may act as in situ self-lubricating agents due to their lower hardnesses compared with that of the Al-rich matrix, favoring good tribological behavior. There is a lack of systematic fundamental studies on the microstructural evolution of monotectic alloys connected to application properties. In the present investigation, the monotectic Al-1.2wt%Pb and Al-3.2wt%Bi alloys have been chosen to permit the effect of microstructural parameters on the wear behavior to be analyzed. Directional solidification experiments were carried out under transient heat flow conditions allowing a large range of cooling rates to be experienced, permitting a representative variation on the scale of the microstructure to be examined. Samples of the monotectic alloys having different interphase spacing, lambda, have been subjected to microadhesive wear tests, and experimental laws correlating the wear volume with the microstructural interphase spacing and test time are proposed. It was found that microstructural features such as the interphase spacing and the morphology of the minority phase play a significant role on the wear process and that for the alloys examined lambda exhibits opposite effects on the corresponding wear volume.
dc.description55
dc.description1
dc.description111
dc.description120
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 [2013/15478-3, 2013/13030-5]
dc.languageen
dc.publisherSpringer/plenum Publishers
dc.publisherNew York
dc.publisherEUA
dc.relationTribology Letters
dc.relationTribol. Lett.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectAl-Bi alloy
dc.subjectAl-Pb alloy
dc.subjectImmiscible alloys
dc.subjectMicrostructure
dc.subjectSelf-lubricant
dc.subjectWear
dc.subjectTransient Directional Solidification
dc.subjectTribological Properties
dc.subjectAluminum-alloys
dc.subjectMacrosegregation
dc.subjectMicrohardness
dc.subjectComposites
dc.subjectTransition
dc.subjectEvolution
dc.subjectSize
dc.titleInter-relation of Microstructural Features and Dry Sliding Wear Behavior of Monotectic Al-Bi and Al-Pb Alloys
dc.typeArtículos de revistas


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