Thermo-electrical properties in Pb-Sb hypereutectic alloy

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dc.contributor.authorSahin, M.
dc.contributor.authorCadirli, E.
dc.contributor.authorSurme, Y.
dc.contributor.authorOzkir, D.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2013
dc.departmentNiğde ÖHÜ
dc.description.abstractPb-17 wt% Sb hypereutectic alloy was directionally solidified upward with three different growth rates (8 mu m/s, 18 mu m/s, 42 mu m/s, 166 mu m/s and 497 mu m/s) at a constant temperature gradient (3.6 K/mm) in the Bridgman-type growth apparatus. The dependence of characteristic microstructure parameters such as primary dendrite arm spacing (lambda(1)) and secondary dendrite arm spacing (lambda(2)) on the growth rate (V) were determined by using a linear regression analysis. Variations of electrical resistivity (rho) for cast samples for temperatures in the range of 300-550 K were measured by using a standard dc four-point probe technique. The variations of thermal conductivity with temperature for the same alloys were determined from the WiedemannFranz and SmithPalmer equations by using the measured values of electrical resistivity. The enthalpy of fusion for the same alloys were determined by means of a differential scanning calorimeter from a heating trace during the transformation from solid to liquid. The corrosion resistance was analyzed by Tafel extrapolation and linear polarization resistance methods conducted in a 5% sodium chloride solution in contact with air maintained at room temperature. Effects of the growth rate on the electrical resistivity and corrosion resistance were also investigated.
dc.description.sponsorshipNigde University Scientific Research Project Unit [FEB 2009/02]
dc.description.sponsorshipThis project was supported by the Nigde University Scientific Research Project Unit under Contract No: FEB 2009/02. Authors would like to thank to the Nigde University Scientific Research Project Unit for their financial support.
dc.identifier.doi10.1007/s12540-013-3012-z
dc.identifier.endpage472
dc.identifier.issn1598-9623
dc.identifier.issue3
dc.identifier.scopus2-s2.0-84878227054
dc.identifier.scopusqualityQ1
dc.identifier.startpage465
dc.identifier.urihttps://dx.doi.org/10.1007/s12540-013-3012-z
dc.identifier.urihttps://hdl.handle.net/11480/4405
dc.identifier.volume19
dc.identifier.wosWOS:000318413900012
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherKOREAN INST METALS MATERIALS
dc.relation.ispartofMETALS AND MATERIALS INTERNATIONAL
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectalloys
dc.subjectsolidification
dc.subjectmicrostructure corrosion
dc.subjectelectrical conductivity/resistivity
dc.titleThermo-electrical properties in Pb-Sb hypereutectic alloy
dc.typeArticle

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