Microstructure characterization and hardness of Al-Cu-Mn eutectic alloy

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dc.contributor.authorKaygısız, Yusuf
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T09:16:56Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T09:16:56Z
dc.date.issued2018
dc.departmentTeknik Bilimler Meslek Yüksekokulu
dc.description.abstractThe composition of Al-Cu-Mn ternary eutectic alloy was chosen to be Al-32.5wt.%Cu-0.6wt.%Mn to the Al2Cu and Al12CuMn2 solid phases within an aluminum matrix (alpha-AI)from its melt. The Al-32.5wt.%Cu-0.6wt.%Mn alloy was directionally solidified at a constant temperature gradient (8.1 K.mm(-1)) with different growth rates, 8.4 to 166.2 mu m.s(-1) , by using a Bridgman-type furnace. The eutectic temperature (the melting point) of 547.85 degrees C for the AI-32.5wt.%Cu-0.6wt.%Mn alloy was obtained from the DTA curve of the temperature difference between the test sample and the inert reference sample versus temperature or time. The lamellar spacings (lambda) were measured from transverse sections of the samples. The dependencies of lamellar spacings (lambda(Al-A12Cu)) and microhardness on growth rates were obtained as, lambda(Al-A12Cu)=3.02V(-0.36) , HV=153.2(V)(0)(.0)(35) , HV=170.6(lambda)(-0.09) and HV=144.3+0.82(lambda(Al-A12Cu))(-0.50), HV=149.9+53.48V(0.25) , respectively, for the Al-Cu-Mn eutectic alloy. The bulk growth rates were determined as lambda(2)(Al-A12Cu).V= 25.38 mu m(3).s(-1) by using the measured values of lambda(Al-A12Cu) and V. A comparison of present results was also made with the previous similar experimental results.
dc.identifier.doi10.1007/s41230-018-7225-0
dc.identifier.endpage396en_US
dc.identifier.issn1672-6421
dc.identifier.issue5en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage390en_US
dc.identifier.urihttps://doi.org/10.1007/s41230-018-7225-0
dc.identifier.urihttps://hdl.handle.net/20.500.12451/4676
dc.identifier.volume15en_US
dc.identifier.wosWOS:000445241600010
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherFoundry Journal Agency
dc.relation.ispartofChina Foundry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDirectional Solidification
dc.subjectAluminum Alloys
dc.subjectMicrostructure
dc.subjectHardness Test
dc.titleMicrostructure characterization and hardness of Al-Cu-Mn eutectic alloy
dc.typeArticle

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