Effect of La content and extrusion temperature on microstructure, texture and mechanical properties of Mg-Zn-Zr magnesium alloy

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dc.authoridZengin, Huseyin/0000-0001-7518-1625
dc.contributor.authorZengin, Huseyin
dc.contributor.authorTuren, Yunus
dc.date.accessioned2024-09-29T15:57:51Z
dc.date.available2024-09-29T15:57:51Z
dc.date.issued2018
dc.departmentKarabük Üniversitesien_US
dc.description.abstractThe microstructure, texture and mechanical properties of Mg-6wt%Zn-0.5 wt%Zr (ZK60) alloys with different La contents (0, 0.5 and 1 wt%) were investigated. The alloys were produced by low-pressure die casting and extruded at 300 degrees C and 400 degrees C, following homogenization at 400 degrees C for 24 h. La addition to ZK60 alloy resulted in a formation of Mg-Zn-La ternary phase, generating a semi-continuous network structure in their as-cast state. After extrusion, secondary phases were broken into fine particles distributed along the extrusion direction. These fragmented particles led to a nucleation of new grains around them i.e. particle stimulated nucleation (PSN), and promoted dynamic recrystallization (DRX) during extrusion. Therefore, increasing La content led to an increase in DRX fraction. Higher extrusion temperature resulted in larger DRXed grains and higher DRX fraction. The basal texture intensity was also decreased with increasing La addition and extrusion temperature by PSN mechanism and solute atoms of La. The ZK60-1La alloy extruded at 300 degrees C showed a superior yield strength of 311 MPa and ultimate tensile strength of 360 MPa as a result of significant grain refinement and dispersion strengthening. Increasing extrusion temperature resulted in a decrease in yield and ultimate tensile strengths and increase in ductility. (C) 2018 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipScientific Research Projects of Karabuk University (BAP) [KBU-BAP-16/1-DR-075]en_US
dc.description.sponsorshipThis research is supported by the Scientific Research Projects of Karabuk University (BAP) with project no. KBU-BAP-16/1-DR-075.en_US
dc.identifier.doi10.1016/j.matchemphys.2018.04.110
dc.identifier.endpage430en_US
dc.identifier.issn0254-0584
dc.identifier.issn1879-3312
dc.identifier.scopus2-s2.0-85050263994en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage421en_US
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2018.04.110
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5033
dc.identifier.volume214en_US
dc.identifier.wosWOS:000437068400049en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Chemistry and Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectZK60 magnesium alloysen_US
dc.subjectLa modificationen_US
dc.subjectExtrusionen_US
dc.subjectMicrostructureen_US
dc.subjectMechanical propertiesen_US
dc.titleEffect of La content and extrusion temperature on microstructure, texture and mechanical properties of Mg-Zn-Zr magnesium alloyen_US
dc.typeArticleen_US

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