Powder metallurgical fabrication of graphene reinforced near-eutectic Al-Si matrix composites: Microstructural, mechanical and electrochemical characterization

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dc.authorid0000-0002-0623-5586
dc.authorid0000-0001-7892-5642
dc.contributor.authorAkcamli, Nazli
dc.contributor.authorSenyurt, Berk
dc.contributor.authorGokce, Hasan
dc.contributor.authorAgaogullari, Duygu
dc.date.accessioned2026-02-12T21:05:05Z
dc.date.available2026-02-12T21:05:05Z
dc.date.issued2022
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractAl-10 wt% Si matrix composites reinforced with a few-layered graphene (FLG) were fabricated via a powder metallurgical route. FLG in varying amounts (0.25, 0.5, 1, 2, and 5 wt%) was incorporated into the Al10Si matrix via mechanical alloying (MA) for different durations in a high-energy ball mill. The mechanically alloyed (MAed) powders were consolidated by uniaxial pressing and pressureless sintering processes. The as-blended (non-MAed) and MAed powders and bulk composites were investigated comparatively in terms of microstructural, thermal, mechanical, tribological and corrosion properties. The MAed powders demonstrated refined and semi-equiaxed particle morphology with reduced crystallite size values. Additionally, the FLG/Al10Si composites exhibited advanced microstructural and mechanical properties by the contribution of MA and reinforcing particles compared to those of the as-blended and unreinforced matrix. The highest hardness and lowest wear rate values were obtained for the 4 h-MAed Al10Si-2FLG (138 HV and 6.485x10-4 mm(3)/N.m) and Al10Si-5FLG (178 HV and 7.456x10-4 mm(3)/N.m) composites. Moreover, the compressive strength of the Al-10Si matrix improved approximately by 50 and 20% via 0.5 and 2 wt% FLG addition, respectively. Also, lower corrosion resistance properties were observed for the FLG reinforced composites compared to the Al10Si matrix. (c) 2021 Karabuk University. Publishing services by Elsevier B.V.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [118M185]
dc.description.sponsorshipThis study was financially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) with the project number of 118M185. The authors wish to express their appreciation to Prof. Dr. Lutfi Ovecog.lu for his advising and support.
dc.identifier.doi10.1016/j.jestch.2021.08.009
dc.identifier.issn2215-0986
dc.identifier.scopus2-s2.0-85118534809
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jestch.2021.08.009
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6779
dc.identifier.volume31
dc.identifier.wosWOS:000793405700007
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier - Division Reed Elsevier India Pvt Ltd
dc.relation.ispartofEngineering Science and Technology-An International Journal-Jestech
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260212
dc.subjectAl-Si alloy composites
dc.subjectFew-layered graphene (FLG)
dc.subjectMechanical/microstructural properties
dc.subjectCorrosion resistance
dc.titlePowder metallurgical fabrication of graphene reinforced near-eutectic Al-Si matrix composites: Microstructural, mechanical and electrochemical characterization
dc.typeArticle

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