Effect of grain refinement and phase composition on room temperature superplasticity and damping capacity of dual-phase Zn-Al alloys

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dc.authorid56405308400
dc.authorid24342654600
dc.authorid56031830800
dc.authorid6505883105
dc.contributor.authorDemirtas M.
dc.contributor.authorAtli K.C.
dc.contributor.authorYanar H.
dc.contributor.authorPurcek G.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:05Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:05Z
dc.date.issued2018
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe effects of grain refinement and phase composition on superplasticity and damping capacity of eutectic Zn-5Al and eutectoid Zn-22Al alloys were investigated. For grain refinement, equal-channel angular pressing (ECAP) was applied to these alloys. ECAP completely eliminated the as-cast lamellar microstructures of both alloys and resulted in ultrafine-grained structures along with room temperature superplasticity. Furthermore, these microstructural changes with ECAP increased the damping capacity of both alloys in the dynamic hysteresis region, where damping arises from viscous sliding of phase/grain boundaries. Dynamic recrystallization at the surface and thermally activated viscous motion of grain/phase boundaries at the subsurface of the samples of both alloys were proposed as the damping mechanisms in the region where the alloys showed combined aspects of static/dynamic hysteresis damping behavior. Although the grain size is larger in Zn-5Al compared to Zn-22Al, it showed higher damping capacity due to the different sliding characteristics of its phase boundaries. © 2018 Materials Research Society.en_US
dc.identifier.doi10.1557/jmr.2018.46
dc.identifier.endpage1045
dc.identifier.issn0884-2914
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85052754549en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage1032
dc.identifier.urihttps://dx.doi.org/10.1557/jmr.2018.46
dc.identifier.urihttps://hdl.handle.net/20.500.12403/384
dc.identifier.volume33
dc.identifier.wosWOS:000435838600015en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherCambridge University Press
dc.relation.ispartofJournal of Materials Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectinternal friction
dc.subjectmicrostructure
dc.subjectsuperplasticity
dc.subjectAluminum alloys
dc.subjectBinary alloys
dc.subjectDamping
dc.subjectDynamic recrystallization
dc.subjectEqual channel angular pressing
dc.subjectGrain refinement
dc.subjectGrain size and shape
dc.subjectHysteresis
dc.subjectInternal friction
dc.subjectMicrostructure
dc.subjectPhase composition
dc.subjectPressing (forming)
dc.subjectSuperplasticity
dc.subjectDamping mechanisms
dc.subjectDynamic hysteresis
dc.subjectHysteresis damping
dc.subjectLamellar microstructure
dc.subjectMicrostructural changes
dc.subjectRoom-temperature superplasticity
dc.subjectThermally activated
dc.subjectUltrafine grained structure
dc.subjectZinc alloys
dc.subjectinternal friction
dc.subjectmicrostructure
dc.subjectsuperplasticity
dc.subjectAluminum alloys
dc.subjectBinary alloys
dc.subjectDamping
dc.subjectDynamic recrystallization
dc.subjectEqual channel angular pressing
dc.subjectGrain refinement
dc.subjectGrain size and shape
dc.subjectHysteresis
dc.subjectInternal friction
dc.subjectMicrostructure
dc.subjectPhase composition
dc.subjectPressing (forming)
dc.subjectSuperplasticity
dc.subjectDamping mechanisms
dc.subjectDynamic hysteresis
dc.subjectHysteresis damping
dc.subjectLamellar microstructure
dc.subjectMicrostructural changes
dc.subjectRoom-temperature superplasticity
dc.subjectThermally activated
dc.subjectUltrafine grained structure
dc.subjectZinc alloys
dc.titleEffect of grain refinement and phase composition on room temperature superplasticity and damping capacity of dual-phase Zn-Al alloysen_US
dc.typeArticleen_US

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