Influence of solidification rate and alloying elements on structure, mechanical and electrical properties of Al-Cu-X alloys

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dc.contributor.authorKalkanoglu, A.
dc.contributor.authorKaya, H.
dc.contributor.authorBuyuk, U.
dc.contributor.authorCadirli, E.
dc.date.accessioned2024-11-07T13:33:02Z
dc.date.available2024-11-07T13:33:02Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe present work aims to explore the effects of the alloying elements (Si, Bi, Sb, Ni, and Co) and solidification rates (V) on the microstructural morphology, microhardness, ultimate tensile strength and electrical resistivity of Al-Cu based eutectic alloys by Bridgman-type solidification apparatus, metallographic observation, scanning electron microscopy, microhardness testing, tensile testing and four-point probe testing. Firstly, the Al-33 Cu-2X (wt.%) samples were produced by using metals of high purity (> 99.95 %) in the vacuum and hotfilling furnaces; these alloys were unidirectionally solidified under different solidification rates, V (8.28-167.08 mu m s(-1)) and constant temperature gradient, G (average 8.50 K mm(-1)). Secondly, metallographic examination and measurement processes: lamellar spacings (lambda), microhardness (HV), ultimate tensile strength (UTS) and electrical resistivity (rho) were measured and expressed as functions of V. It has been found that the addition of the alloying elements (AE) content in Al-Cu eutectic as well as increasing of V lead to a decrease of lamellar spacings. On the contrary, the values of HV, UTS, and rho increase with increasing V values and the addition of alloying elements. Relationships between lambda-V, lambda-HV, lambda-UTS (sigma) and lambda-rho were found by regression analysis, and the results found in this research were compared with the previous similar studies.
dc.description.sponsorshipErciyes University Scientific Research Project Unit [FBA 2013-4508]
dc.description.sponsorshipThis research was supported by Erciyes University Scientific Research Project Unit (FBA 2013-4508).
dc.identifier.doi10.4149/km_2021_5_333
dc.identifier.endpage343
dc.identifier.issn0023-432X
dc.identifier.issn1338-4252
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85120650481
dc.identifier.scopusqualityQ3
dc.identifier.startpage333
dc.identifier.urihttps://doi.org/10.4149/km_2021_5_333
dc.identifier.urihttps://hdl.handle.net/11480/15751
dc.identifier.volume59
dc.identifier.wosWOS:000712441500006
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRedakcia Kovove Materialy
dc.relation.ispartofKovove Materialy-Metallic Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectAl-Cu alloys
dc.subjectalloying
dc.subjectlamellar spacings
dc.subjectmicrohardness
dc.subjectultimate tensile strength
dc.subjectelectrical resistivity
dc.titleInfluence of solidification rate and alloying elements on structure, mechanical and electrical properties of Al-Cu-X alloys
dc.typeArticle

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