Effect of different processes on lamellar-free ultrafine grain formation, room temperature superplasticity and fracture mode of Zn-22Al alloy

Basit Öğe Kaydı
dc.authorid56405308400
dc.authorid6505883105
dc.authorid56031830800
dc.authorid56088826000
dc.authorid56068835900
dc.contributor.authorDemirtas M.
dc.contributor.authorPurcek G.
dc.contributor.authorYanar H.
dc.contributor.authorZhang Z.J.
dc.contributor.authorZhang Z.F.
dc.date.accessioned20.04.201910:49:12
dc.date.accessioned2019-04-20T21:43:37Z
dc.date.available20.04.201910:49:12
dc.date.available2019-04-20T21:43:37Z
dc.date.issued2016
dc.departmentBayburt Üniversitesien_US
dc.description.abstractThe Zn-22 wt.%Al was processed using five different selected routes including thermal, thermo-mechanical and severe plastic deformation (SPD) techniques in order to produce ultrafine grained (UFG) microstructure for achieving room temperature (RT) and high strain rate (HSR) superplasticity, and to compare the same set of the results. After all routes, the microstructural evolutions and RT uniaxial tensile tests at different strain rates ranging from 1 × 10-3 to 1 × 100 s-1 were investigated. The smallest grain size was achieved to be 300 nm after the thermo-mechanical process including conventional hot and cold rolling steps. However, the lamellar microstructure of the alloy was not completely eliminated during that process. On the other hand, equal-channel angular pressing (ECAP) as one of the SPD techniques decreased the grain size down to 400 nm with a lamellar-free microstructure. The maximum elongation value was achieved to be 330% with the sample tested at 1 × 10-3 s-1 after a thermo-mechanical process including conventional hot and cold rolling, and an aging stage between these rolling steps. It was found that lamellar-free microstructure causes higher superplastic elongation even if it has higher grain size compared to the sample having partially lamellar structure. © 2015 Elsevier B.V.en_US
dc.identifier.doi10.1016/j.jallcom.2015.12.142
dc.identifier.endpage783
dc.identifier.issn0925-8388
dc.identifier.scopus2-s2.0-84953304881en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage775
dc.identifier.urihttps://dx.doi.org/10.1016/j.jallcom.2015.12.142
dc.identifier.urihttps://hdl.handle.net/20.500.12403/623
dc.identifier.volume663
dc.identifier.wosWOS:000369060200104en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Ltd
dc.relation.ispartofJournal of Alloys and Compoundsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSevere plastic deformation
dc.subjectSuperplasticity
dc.subjectUFG materials
dc.subjectZn-22Al alloy
dc.subjectAluminum
dc.subjectCold rolling
dc.subjectEqual channel angular pressing
dc.subjectGrain size and shape
dc.subjectHot rolling
dc.subjectMicrostructure
dc.subjectPlastic deformation
dc.subjectPressing (forming)
dc.subjectStrain rate
dc.subjectSuperplasticity
dc.subjectTensile testing
dc.subjectZinc
dc.subjectLamellar microstructure
dc.subjectRoom-temperature superplasticity
dc.subjectSevere plastic deformations
dc.subjectSuperplastic elongation
dc.subjectThermomechanical process
dc.subjectUFG materials
dc.subjectUltra fine grained microstructure
dc.subjectZn-22Al
dc.subjectLamellar structures
dc.subjectSevere plastic deformation
dc.subjectSuperplasticity
dc.subjectUFG materials
dc.subjectZn-22Al alloy
dc.subjectAluminum
dc.subjectCold rolling
dc.subjectEqual channel angular pressing
dc.subjectGrain size and shape
dc.subjectHot rolling
dc.subjectMicrostructure
dc.subjectPlastic deformation
dc.subjectPressing (forming)
dc.subjectStrain rate
dc.subjectSuperplasticity
dc.subjectTensile testing
dc.subjectZinc
dc.subjectLamellar microstructure
dc.subjectRoom-temperature superplasticity
dc.subjectSevere plastic deformations
dc.subjectSuperplastic elongation
dc.subjectThermomechanical process
dc.subjectUFG materials
dc.subjectUltra fine grained microstructure
dc.subjectZn-22Al
dc.subjectLamellar structures
dc.titleEffect of different processes on lamellar-free ultrafine grain formation, room temperature superplasticity and fracture mode of Zn-22Al alloyen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu