Influences of 2.5wt% Mn addition on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloys

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dc.contributor.authorSari, Ugur
dc.date.accessioned2020-06-25T17:51:23Z
dc.date.available2020-06-25T17:51:23Z
dc.date.issued2010
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe influences of 2.5wt% Mn addition on the microstructure and mechanical properties of the Cu-11.9wt%Al-3.8wt%Ni shape memory alloy (SMA) were studied by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), and differential scanning calorimeter (DSC). The experimental results show that Mn addition influences considerably the austenite-martensite transformation temperatures and the kind of martensite in the Cu-Al-Ni alloy. The martensitic transformation changes from a mixed beta(1) -> beta(1)'+gamma(1)' transformation to a single beta(1) -> beta(1)' martensite transformation together with a decrease in transformation temperatures. In addition, the observations reveal that the grain size of the Cu-Al-Ni alloy can be controlled with the addition of 2.5wt% Mn and thus its mechanical properties can be enhanced. The Cu-Al-Ni-Mn alloy exhibits better mechanical properties with the high ultimate compression strength and ductility of 952 MPa and 15%, respectively. These improvements are attributed to a decrease in grain size. However, the hardness decreases from Hv 230 to Hv 140 with the Mn addition.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1007/s12613-010-0212-0
dc.identifier.endpage198en_US
dc.identifier.issn1674-4799
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-77951596805
dc.identifier.scopusqualityQ1
dc.identifier.startpage192en_US
dc.identifier.urihttps://doi.org/10.1007/s12613-010-0212-0
dc.identifier.urihttps://hdl.handle.net/20.500.12587/4842
dc.identifier.volume17en_US
dc.identifier.wosWOS:000276343200012
dc.identifier.wosqualityQ3
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.subjectCu-Al-Ni shape memory alloysen_US
dc.subjectmartensitic transformationsen_US
dc.subjectgrain sizeen_US
dc.subjectmechanical propertiesen_US
dc.titleInfluences of 2.5wt% Mn addition on the microstructure and mechanical properties of Cu-Al-Ni shape memory alloysen_US
dc.typeArticle

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