Effects of aging on the microstructure of a Cu-Al-Ni-Mn shape memory alloy

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dc.contributor.authorSari, U.
dc.contributor.authorKirindi, T.
dc.contributor.authorOzcan, F.
dc.contributor.authorDikici, M.
dc.date.accessioned2020-06-25T17:51:43Z
dc.date.available2020-06-25T17:51:43Z
dc.date.issued2011
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe influence of aging on the microstructure and mechanical properties of Cu-11.6wt%Al-3.9wt%Ni-2.5wt%Mn shape memory alloy (SMA) was studied by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffractometer, and differential scanning calorimeter (DSC). Experimental results show that bainite, gamma(2), and alpha phase precipitates occur with the aging effect in the alloy. After aging at 300dgC, the bainitic precipitates appear at the early stages of aging, while the precipitates of gamma(2) phase are observed for a longer aging time. When the aging temperature increases, the bainite gradually evolves into gamma(2) phase and equilibrium alpha phase (bcc) precipitates from the remaining parent phase. Thus, the bainite, gamma(2), and alpha phases appear, while the martensite phase disappears progressively in the alloy. The bainitic precipitates decrease the reverse transformation temperature while the gamma(2) phase precipitates increase these temperatures with a decrease of solute content in the retained parent phase. On the other hand, these precipitations cause an increasing in hardness of the alloy.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1007/s12613-011-0458-1
dc.identifier.endpage436en_US
dc.identifier.issn1674-4799
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-83455179695
dc.identifier.scopusqualityQ1
dc.identifier.startpage430en_US
dc.identifier.urihttps://doi.org/10.1007/s12613-011-0458-1
dc.identifier.urihttps://hdl.handle.net/20.500.12587/4969
dc.identifier.volume18en_US
dc.identifier.wosWOS:000293296400008
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringeren_US
dc.relation.ispartofInternational Journal Of Minerals Metallurgy And Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectcopper alloysen_US
dc.subjectshape memory effecten_US
dc.subjectmartensitic transformationsen_US
dc.subjectagingen_US
dc.subjectprecipitatesen_US
dc.titleEffects of aging on the microstructure of a Cu-Al-Ni-Mn shape memory alloyen_US
dc.typeArticle

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