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Novel SPD Method: Twisted Variable Channel Angular Extrusion

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dc.contributor.authorKENTLİ, AYKUT
dc.contributor.authorsOzbeyaz, Kerim; Kaya, Hasan; Kentli, Aykut
dc.date.accessioned2022-03-12T22:57:43Z
dc.date.available2022-03-12T22:57:43Z
dc.description.abstractDifferent types of SPD techniques are applicable and have been studied by various researchers. All of them have several advantages and disadvantages. Equal Channel Angular Pressing (ECAP) is one of the most popular SPD techniques and is still being developed. The aim of this paper is to improve the efficiency of ECAP process by putting forward a novel design (Twisted Variable Channel Angular Pressing (TV-CAP)) and also to achieve higher mechanical properties when compared to conventional ECAP processes. For this purpose, a new TV-CAP die was designed by combining three different methods: ECAP, Twist Extrusion, and Direct Extrusion. The new design was able to integrate the advantages of each method to the workpiece material. In this context, the design parameters of the TV-CAP die were first identified by finite element analysis (FEA) in Deform-3D. The TV-CAP die was produced according to the determined parameters and AA5083 alloy was pressed with this novel die. Hardness and tensile tests were carried out to compare mechanical properties. In addition, Optical Microscope, SEM, TEM images were taken, and XRD and EBSD analyses were carried out to examine the changes in grain structure. As a result of this experimental study, an increase of 197.3% was observed in the hardness value and an increase of 144.7% was achieved in the tensile strength value by using the novel TV-CAP die. These results also agreed with the effective strain values obtained from the FEA.
dc.identifier.doi10.1007/s12540-021-01086-4
dc.identifier.eissn2005-4149
dc.identifier.issn1598-9623
dc.identifier.urihttps://hdl.handle.net/11424/237085
dc.identifier.wosWOS:000715005400003
dc.language.isoeng
dc.publisherKOREAN INST METALS MATERIALS
dc.relation.ispartofMETALS AND MATERIALS INTERNATIONAL
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSPD
dc.subjectECAP
dc.subjectTwist Extrusion
dc.subjectAA5083
dc.subjectMicrostructure
dc.subjectMechanical properties
dc.subjectTV-CAP
dc.subjectSEVERE PLASTIC-DEFORMATION
dc.subjectMECHANICAL-PROPERTIES
dc.subjectMICROSTRUCTURE
dc.subjectALLOY
dc.subjectBEHAVIOR
dc.subjectECAP
dc.subjectPRESSURE
dc.subjectCOPPER
dc.subjectFLOW
dc.titleNovel SPD Method: Twisted Variable Channel Angular Extrusion
dc.typearticle
dspace.entity.typePublication
local.avesis.iddc3b561d-03fb-43ed-a57f-e9bd0a4d3f51
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages16
oaire.citation.titleMETALS AND MATERIALS INTERNATIONAL
relation.isAuthorOfPublicationcf5e519e-39bd-4c19-9408-5648f713069f
relation.isAuthorOfPublication.latestForDiscoverycf5e519e-39bd-4c19-9408-5648f713069f

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