Determination of microstructure and mechanical and thermophysical properties of Al-Si-Mg-XCr alloy

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dc.contributor.authorKaygisiz, Yusuf
dc.contributor.authorPalta, Cetin
dc.contributor.authorEngin, Sevda
dc.date.accessioned2024-02-23T14:13:08Z
dc.date.available2024-02-23T14:13:08Z
dc.date.issued2024
dc.departmentNEÜen_US
dc.description.abstractThe study added different proportions of Cr to the Al-Si-Mg eutectic alloy and applied heat treatment to the quaternary alloy. So, the Al-Si-Mg eutectic alloy's microstructure and morphology were looked at after Cr was added and it was heated. In addition, the hardness, tensile strength, fracture surface analysis, and thermoelectric properties of newly produced Al-12.95 % Si-4.96 % Mg-X%Cr alloys were also determined. In the newly formed alloy, along with the expected Si and Mg2Si phases in the Al matrix phase, a randomly distributed CrSi2 binary intermetallic phase in a white hexagonal structure was observed with the effect of Cr addition. Additionally, a magnesium-rich Al9FeMg3Si5 intermetallic phase was observed, which we think was formed by the effect of Fe impurity atoms. Hardness and tensile strength values, which are the mechanical properties of the alloy, increased significantly after heat treatment. The hardness value of the 0.5 % Cr-added sample increased by approximately 77 % and reached 107.95 +/- 6.0 kg/mm2. At the same time, the hardness value of the intermetallic CrSi2 phase in the quaternary Al-12.95 wt%Si-4.96 wt%Mg-1.0%Cr alloy was found to be 794.3 +/- 30 kg/mm2. Similarly, the maximum tensile strength value of the 0.5 % Cr-added sample after heat treatment increased by approximately 105 % and reached 160.53 MPa. Melting temperatures (Tm) (K), fusion enthalpy (Delta H) (J/g), and specific heat Cpl (J/gK) were determined for non-heat-treated materials. The 0.5, 1.0, and 1.5 Cr-added samples had Tm of 563.38 degrees C, 558.44 degrees C and 572.61 degrees C, respectively. The Delta H value of samples with 0.5 %, 1.0 % and 1.5 % Cr addition is 605.70 (J/g), 579.92 (J/g) and 552.24 (J/g), respectively. Cpl was 0.724 J/g.K, 0.698 J/g.K and 0.653 J/g.K for 0.5 %, 1.0 %, and 1.5 % Cr-added samples. In both heat-treated and non-heat-treated samples, Cr enhanced electrical resistance.en_US
dc.description.sponsorshipNecmettin Erbakan University Scien-tific Research Project Unit [161226001]; Necmettin Erbakan Universityen_US
dc.description.sponsorshipAcknowledgments This project was supported by Necmettin Erbakan University Scien-tific Research Project Unit, Contract No: 161226001. The authors obliged to Necmettin Erbakan University for their financial contribution.en_US
dc.identifier.doi10.1016/j.matchemphys.2023.128559
dc.identifier.issn0254-0584
dc.identifier.issn1879-3312
dc.identifier.scopus2-s2.0-85174035977en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.matchemphys.2023.128559
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12325
dc.identifier.volume311en_US
dc.identifier.wosWOS:001097208800001en_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.subjectHeat Treatmenten_US
dc.subjectCrsi 2 Phaseen_US
dc.subjectMicrohardnessen_US
dc.subjectTensile Strengthen_US
dc.titleDetermination of microstructure and mechanical and thermophysical properties of Al-Si-Mg-XCr alloyen_US
dc.typeArticleen_US

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