Investigation of the effect of solidification processing parameters on microhardness and determination of thermo-physical properties in the Zn-Cu peritectic alloy

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dc.authorid0000-0002-6830-8349
dc.contributor.authorBoyuk, U.
dc.contributor.authorKaya, H.
dc.contributor.authorCadirli, E.
dc.contributor.authorMarasli, N.
dc.contributor.authorUlgen, A.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractZn-1.5wt.% Cu peritectic alloy was directionally solidified upward with different growth rates (8.41-661.11 mu m/s) at a constant temperature gradient (7.81 K/mm) and with different temperature gradients (1.99-7.81 K/mm) at a constant growth rate (16.44 mu m/s) using a Bridgman-type directional solidification apparatus. The measurements of microhardness of directionally solidified samples were made by using a microhardness test device. The dependence of microhardness (HV) on the growth rate (V) and temperature gradient (G) were analyzed. According to these results, it has been found that with the increasing the values of V and G the values of HV increase. Variation of electrical resistivity (rho) and electrical conductivity (sigma) with the temperature in the range of 300 similar to 670 K for casting samples were also measured by using a standard d.c. four-point probe technique. The variation of Lorenz coefficient with the temperature was determined by using the measured values of electrical conductivity and thermal conductivity. The enthalpy of fusion and specific heat for same alloy were determined by means of differential scanning calorimeter (DSC) from the heating curve during the transformation from peritectic solid to peritectic liquid. (C) 2009 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [107T095]
dc.description.sponsorshipThis research was supported financially by the Scientific and Technical Research Council of Turkey (TUBITAK) under contract no. 107T095. The authors are grateful to the Scientific and Technical Research Council of Turkey (TUBITAK) for their financial supports.
dc.identifier.doi10.1016/j.jallcom.2009.10.184
dc.identifier.endpage148
dc.identifier.issn0925-8388
dc.identifier.issue45323
dc.identifier.scopus2-s2.0-74449085055
dc.identifier.scopusqualityQ1
dc.identifier.startpage143
dc.identifier.urihttps://dx.doi.org/10.1016/j.jallcom.2009.10.184
dc.identifier.urihttps://hdl.handle.net/11480/4910
dc.identifier.volume491
dc.identifier.wosWOS:000274926300037
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
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.subjectPeritectic microstructure
dc.subjectMicrohardness
dc.subjectElectrical conductivity
dc.subjectLorenz coefficient
dc.subjectEnthalpy
dc.titleInvestigation of the effect of solidification processing parameters on microhardness and determination of thermo-physical properties in the Zn-Cu peritectic alloy
dc.typeArticle

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