Fabrication of functionally graded few-layered graphene reinforced Al-4.5Cu alloy by powder metallurgy

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dc.authorid0000-0003-4345-9199
dc.contributor.authorBorand, Gokce
dc.contributor.authorUzunsoy, Deniz
dc.date.accessioned2026-02-12T21:05:06Z
dc.date.available2026-02-12T21:05:06Z
dc.date.issued2022
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractFunctionally graded materials (FGMs) are a class of innovative materials designed for needs that conven-tional composite materials cannot provide. Potential application areas such as aerospace, automobile, biomedical, defence, electrical/electronics, energy have begun to increase for the use of FGMs. Aluminium and aluminium alloys are preferred in these potential application areas for their physical and mechanical properties such as lightweight, high specific strength, high specific modulus and low thermal expansion coefficient. Graphene, one of the allotropes of carbon, is of great interest worldwide due to its superior mechanical, electrical and thermal properties. In this study, functionally graded graphene reinforced Al-4.5Cu alloy was produced by powder metallurgy. Few-layered graphene (FLG) with high purity, which was synthesized by the electric arc discharge (EAD) was reinforced to the Al-4.5Cu alloy powders that were produced by mechanical alloying as 0,0.1,0.2,0.3,0.5 and 0.7 wt%. These FLG reinforced Al-4.5Cu alloy composite powders considering FGM design with six layers, were pressed by stacking according to their various FLG contents and subjected to sintering at 570 degrees C and 590 degrees C for 3 h. It was observed that the FLG, which was graded according to their contents acting as a barrier between grains, was homogeneously dispersed in the Al-4.5Cu alloy matrix in optical and scanning electron images. According to the design of each FGM, an increase in the hardness by 37.11 % and 24.71 % was observed in the last layer compared to the first layer for sintering at 570 degrees C and 590 degrees C, respectively. (c) 2022 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK); [119M011]
dc.description.sponsorshipThis study was financially supported by ?The Scientific and Technological Research Council of Turkey (T?B?TAK) ? with the pro-ject number of 119M011.
dc.identifier.doi10.1016/j.jallcom.2022.166348
dc.identifier.issn0925-8388
dc.identifier.issn1873-4669
dc.identifier.scopus2-s2.0-85135026602
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2022.166348
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6795
dc.identifier.volume923
dc.identifier.wosWOS:000879219700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofJournal of Alloys and Compounds
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectAluminium Alloy
dc.subjectFunctionally Graded Materials
dc.subjectGraphene
dc.subjectMechanical Alloying
dc.subjectMetal Matrix Composite
dc.subjectPowder Metallurgy
dc.titleFabrication of functionally graded few-layered graphene reinforced Al-4.5Cu alloy by powder metallurgy
dc.typeArticle

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