Variation of microindentation hardness with solidification and microstructure parameters in the Al based alloys

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dc.authorid0000-0002-6830-8349
dc.contributor.authorKaya, H.
dc.contributor.authorCadirli, E.
dc.contributor.authorBoyuk, U.
dc.contributor.authorMarasli, N.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2008
dc.departmentNiğde ÖHÜ
dc.description.abstractThe Al based alloys (Al-3 wt%Si, Al-3 wt%Cu and Al-1 wt%Ti) were prepared using metals of 99.99% high purity in the vacuum atmosphere. These alloys were directionally solidified upward with a constant growth rate (V = 0.008 mm/s) at the different temperature gradients (G = 1.1-6.8 K/mm) and also with a constant temperature gradient (G) in a wide range of growth rates (0.008-0.499 mm/s) with a Bridgman type directional solidi. cation furnace. The microstructure parameters (primary dendrite arm spacing, gimel(1), secondary dendrite arm spacing, gimel(2), dendrite tip radius, R, andmushy zone depth, d, were measured from both transverse and longitudinal section of the specimens as a function of G and V. The dependence of microhardness (H(V)) on the solidi. cation process parameters (V and G) and the microstructure parameters were determined by using linear regression analysis in the Al based alloys. The results obtained in this work have been compared with the previous similar experimental results obtained for binary or ternary alloys. (C) 2008 Elsevier B.V. All rights reserved.
dc.identifier.doi10.1016/j.apsusc.2008.08.080
dc.identifier.endpage3078
dc.identifier.issn0169-4332
dc.identifier.issue5
dc.identifier.scopus2-s2.0-56949089100
dc.identifier.scopusqualityQ1
dc.identifier.startpage3071
dc.identifier.urihttps://dx.doi.org/10.1016/j.apsusc.2008.08.080
dc.identifier.urihttps://hdl.handle.net/11480/5169
dc.identifier.volume255
dc.identifier.wosWOS:000261299200089
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofAPPLIED SURFACE SCIENCE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectAl-base alloys
dc.subjectMicrostructures
dc.subjectHall-Petch relationships
dc.subjectMicroindentation hardness
dc.titleVariation of microindentation hardness with solidification and microstructure parameters in the Al based alloys
dc.typeArticle

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