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Microstructure and Mechanical Properties of CoCrFeNi(TiAl) High Entropy Alloys

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dc.contributor.author Kalay, İlkay
dc.date.accessioned 2021-06-17T08:12:11Z
dc.date.available 2021-06-17T08:12:11Z
dc.date.issued 2020
dc.identifier.citation Kalay, İlkay (2020). "Microstructure and Mechanical Properties of CoCrFeNi(TiAl) High Entropy Alloys", Hittite Journal of Science and Engineering, Vol. 7, No. 2, pp. 157-162. tr_TR
dc.identifier.issn 2149-2123
dc.identifier.issn 2148-4171
dc.identifier.uri http://hdl.handle.net/20.500.12416/4821
dc.description.abstract The structure and mechanical properties of CoCrFeNi and CoCrFeNiTi0.5Al0.5 (in molar ratio) high entropy alloys were investigated using X-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM), hardness and compression tests. With the addition of Ti and Al, the crystal structure of CoCrFeNi changed from FCC to a mixture of FCC and double BCC structures. The lattice parameter of FCC increases upon addition of Al and Ti. The microstructure analysis shows the morphological transition of dendrites from non-equiaxed to equiaxed during the suction casting of CoCrFeNiTi 0.5Al 0.5 alloy. The Vickers microhardness testing of CoCr-FeNi alloy reveals significant increase in hardness with the addition of Al and Ti. The hardness values are improved in as-suction cast CoCrFeNi and CoCrFeNiTi0.5Al 0.5 alloys compared to their ascast alloys due to strengthening. The CoCrFeNiTi0.5Al 0.5 alloy yields at 1997 MPa and fails at 2344 MPa. The fracture mechanism of CoCrFeNiTi 0.5Al 0.5 alloy reveals a cleavage mode. tr_TR
dc.language.iso eng tr_TR
dc.relation.isversionof 10.17350/HJSE19030000184 tr_TR
dc.rights info:eu-repo/semantics/openAccess tr_TR
dc.subject High Entropy Alloys tr_TR
dc.subject Microstructure tr_TR
dc.subject Microhardness tr_TR
dc.subject Compression Test tr_TR
dc.subject Metallic Alloys tr_TR
dc.title Microstructure and Mechanical Properties of CoCrFeNi(TiAl) High Entropy Alloys tr_TR
dc.type article tr_TR
dc.relation.journal Hittite Journal of Science and Engineering tr_TR
dc.contributor.authorID 101579 tr_TR
dc.identifier.volume 7 tr_TR
dc.identifier.issue 2 tr_TR
dc.identifier.startpage 157 tr_TR
dc.identifier.endpage 162 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümü tr_TR


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