The role of deformation in the microstructure, mechanical properties, and shape memory characteristics of Cu-Al-Ni shape memory alloys

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dc.authoridSaud Al-Humairi, Safaa N/0000-0001-5978-7651
dc.authoridAHLATCI, Hayrettin/0000-0002-6766-4974
dc.contributor.authorAl-Mahdi, Mohammed R.
dc.contributor.authorAhlatci, Hayrettin
dc.contributor.authorAl-Humairi, Safaa N. Saud N.
dc.date.accessioned2024-09-29T16:01:09Z
dc.date.available2024-09-29T16:01:09Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractDue to its potential high-temperature applications, Cu-Al-Ni shape memory alloys have recently attracted much interest. This article attempts to investigate the different percentages of deformation of 1%, 2%, and 4%. on the microstructure, mechanical properties, and shape memory effect of Cu-13wt.% Al-4wt.% Ni shape memory alloys. The findings indicated that the deformed specimen performed much better than the homogenized sample. From microstructural observations, it is seen that the beta(1)' (18R) and gamma(1)' (2H) martensite phases as needles- and plates-like morphologies coexisted at different fractions in the undeformed and deformed states. Furthermore, the transformation temperature curves have shifted toward higher transformation temperatures as the deformation percentage increases. The deformed alloy exhibits good mechanical properties with high ultimate tensile strength and ductility after deformation at 2% and 4%, respectively. The microhardness of the deformed samples exhibited the lowest hardness of 247.6 Hv at a 4% deformation percentage. However, it exhibits ductile fracture, including mixed intergranular and transgranular features with linear stress-strain behaviour after applying a 4% deformation percentage. The shape recovery of 94.6% of the original length was achieved when a 2% of the deformation was applied. Because of this, it is reasonable to expect that the mechanical properties and shape-memory attributes of Cu-based SMAs are drastically affected by deformation.en_US
dc.identifier.doi10.1051/metal/2023042
dc.identifier.issn2271-3646
dc.identifier.issn2271-3654
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85160321519en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1051/metal/2023042
dc.identifier.urihttps://hdl.handle.net/20.500.14619/5540
dc.identifier.volume120en_US
dc.identifier.wosWOS:000989603300002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherEdp Sciences S Aen_US
dc.relation.ispartofMetallurgical Research & Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCu-Al-Ni SMAsen_US
dc.subjectdeformationen_US
dc.subjectrollingen_US
dc.subjectphase transformation temperatureen_US
dc.subjectshape memory effecten_US
dc.titleThe role of deformation in the microstructure, mechanical properties, and shape memory characteristics of Cu-Al-Ni shape memory alloysen_US
dc.typeArticleen_US

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