Microstructure, microhardness, tensile, electrical, and thermal properties of the Al-Mn-xSi ternary alloys

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dc.authoridBuyuk, Ugur/0000-0002-6830-8349
dc.contributor.authorKaya, H.
dc.contributor.authorCadirli, E.
dc.contributor.authorBuyuk, U.
dc.date.accessioned2024-11-07T13:31:48Z
dc.date.available2024-11-07T13:31:48Z
dc.date.issued2020
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe effect of Si content (0.5, 1.5, and 5 wt.%) and growth velocity on the microstructure, microhardness, ultimate tensile strength, electrical resistivity, enthalpy, and specific heat properties of the directionally solidified Al-Mn eutectic alloy have been investigated. Al-1.94Mn-xSi (x = 0.5, 1.5, 5 wt.%) samples were prepared from pure metals (99.99 % purity) under the vacuum. These alloys were directionally solidified under constant temperature gradient G (4.9 K mm(-1)) and different growth velocities V (from 8.3 to 978 mu m s(-1)) in a Bridgman-type growth apparatus. Measurements of primary dendrite arm spacing (lambda), microhardness (HV), ultimate tensile strength (UTS) and electrical resistivity (rho) of the samples were carried out and then expressed as functions of growth velocity and Si content (C-o). Additionally, the enthalpy of fusion (Delta H) and specific heat capacity (C-p) for the same alloys were determined by a differential scanning calorimeter (DSC) from the heating curves. It has been found that the values of HV, UTS, and rho increase with increasing values of V and C-o. On the contrary, the values of lambda decrease with increasing V. The increasing Si content in Al-Mn leads to a decrease of Delta H and C-p.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [212T130]
dc.description.sponsorshipThis research was financially supported by the Scientific and Technical Research Council of Turkey (TUBITAK) under contract no. 212T130. The authors are grateful to TUBITAK.
dc.identifier.doi10.4149/km_2020_4_275
dc.identifier.endpage285
dc.identifier.issn0023-432X
dc.identifier.issn1338-4252
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85091484621
dc.identifier.scopusqualityQ3
dc.identifier.startpage275
dc.identifier.urihttps://doi.org/10.4149/km_2020_4_275
dc.identifier.urihttps://hdl.handle.net/11480/15053
dc.identifier.volume58
dc.identifier.wosWOS:000543026800006
dc.identifier.wosqualityQ3
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-Mn-Si alloys
dc.subjectsolidification
dc.subjectmicrostructure
dc.subjectmechanical properties
dc.subjectthermal properties
dc.subjectelectrical resistivity
dc.titleMicrostructure, microhardness, tensile, electrical, and thermal properties of the Al-Mn-xSi ternary alloys
dc.typeArticle

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