Effect of Growth Velocity and Zn Content on Microhardness in Directionally Solidified Al-Zn Alloys

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dc.authoridEROL, Harun/0000-0001-7819-0279
dc.contributor.authorAcer, Emine
dc.contributor.authorCadirli, Emin
dc.contributor.authorErol, Harun
dc.contributor.authorKaya, Hasan
dc.contributor.authorSahin, Mevlut
dc.contributor.authorGunduz, Mehmet
dc.date.accessioned2024-11-07T13:34:40Z
dc.date.available2024-11-07T13:34:40Z
dc.date.issued2018
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, Al-xZn (x=1, 3, 5, 7, 10 and 20 wt. %) alloys were prepared using metals of 99.99% high purity in the vacuum atmosphere. These alloys were directionally solidified upward with a constant temperature gradient, G (10.3 K/mm) and different growth velocities (V) between 8.25 and 165 mu m/s in the directional solidification apparatus. The experimental results have revealed that with the increase of the growth velocity of the melts from 8.25 mu m/s to 165 mu m/s, the microstructures undergo a transition from cellular/cellular dendritic morphology to coarse dendritic form for each composition (Zn content, C-o). The measurements of microhardness (HV) of the specimens were performed by using a microhardness test device. The dependence of HV on V and C(o )was analyzed, and it has been found that with increasing the V and C-o the HV increases. Relationships between HV-V and HV-C-o were obtained by linear regression analysis, and the experimental results were compared with the results of previous similar works.
dc.description.sponsorshipErciyes University Scientific Research Project Unit [FDK-2013-4756]
dc.description.sponsorshipThis project was supported by the Erciyes University Scientific Research Project Unit under Contract No: FDK-2013-4756. The authors are grateful for this financial support.
dc.identifier.doi10.1590/1980-5373-MR-2018-0337
dc.identifier.issn1516-1439
dc.identifier.issn1980-5373
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85116471765
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1590/1980-5373-MR-2018-0337
dc.identifier.urihttps://hdl.handle.net/11480/16114
dc.identifier.volume21
dc.identifier.wosWOS:000444725100001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherUniv Fed Sao Carlos, Dept Engenharia Materials
dc.relation.ispartofMaterials Research-Ibero-American Journal of Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectAl-Zn alloys
dc.subjectmicrostructure
dc.subjectmicrohardness
dc.subjectgrowth velocity
dc.subjectdirectional solidification
dc.titleEffect of Growth Velocity and Zn Content on Microhardness in Directionally Solidified Al-Zn Alloys
dc.typeArticle

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