Characterization of rapidly solidified Ni-Si and Co-Al eutectic alloys in drop tube

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dc.contributor.authorCadirli, E.
dc.contributor.authorHerlach, D. M.
dc.contributor.authorVolkmann, T.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractContainerless solidifications of Ni-Si and Co-Al eutectic alloys were carried out using an 8 m drop tube. Molten alloy ejected into a drop tube was rapidly cooled and solidified during free fall. The microstructures of the rapid solidified alloys were evaluated. It was seen that the microstructures of Ni-Si and Co-Al eutectics change from the lamellar and plate-like eutectic to the anomalous eutectic and needle-like forms with decreasing the sample size, respectively. The values of the enthalpy of fusion and specific heat were determined by means of differential scanning calorimetry (DSC) during the transformation from liquid to the solid state. The microhardness of rapid solidified alloys was measured by using a microhardness test device. According to the present measurements, the values of microhardness (HV) for rapid solidified Ni-Si and Co-Al eutectics alloys increase with decreasing the eutectic spacing. (C) 2009 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technical Research Council of Turkey (TUBITAK) [2219]
dc.description.sponsorshipThis research was supported financially by the Scientific and Technical Research Council of Turkey (TUBITAK) under 2219 post-doctoral research fellowship program. The authors thank Dr Jorn Strohmenger and Dr Roman Lengsdorf, for their continuous support and Dr Matthias Kolbe for support of the electron microscope investigations.
dc.identifier.doi10.1016/j.jnoncrysol.2009.12.019
dc.identifier.endpage466
dc.identifier.issn0022-3093
dc.identifier.issue45574
dc.identifier.scopus2-s2.0-76249104109
dc.identifier.scopusqualityQ2
dc.identifier.startpage461
dc.identifier.urihttps://dx.doi.org/10.1016/j.jnoncrysol.2009.12.019
dc.identifier.urihttps://hdl.handle.net/11480/4896
dc.identifier.volume356
dc.identifier.wosWOS:000275769800005
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofJOURNAL OF NON-CRYSTALLINE SOLIDS
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAlloys
dc.subjectCrystal growth
dc.subjectHardness
dc.subjectIndentation, microindentation
dc.titleCharacterization of rapidly solidified Ni-Si and Co-Al eutectic alloys in drop tube
dc.typeArticle

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