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Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses

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dc.contributor.author Sıkan, F.
dc.contributor.author Atabay, Sıla Ece
dc.contributor.author Motallebzadeh, A.
dc.contributor.author Özerinç, S.
dc.contributor.author Kalay, I.
dc.contributor.author Kalay, Y. E.
dc.date.accessioned 2020-02-28T12:18:02Z
dc.date.available 2020-02-28T12:18:02Z
dc.date.issued 2019-01-16
dc.identifier.citation Sikan, F...et al. (2019). "Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses", Materials Science and Engineering A-Structural Materials Propertıes Mıcrostructure And Processıng, Vol. 743, pp. 168-174. tr_TR
dc.identifier.issn 0921-5093
dc.identifier.uri http://hdl.handle.net/20.500.12416/2557
dc.description.abstract The effect of rare-earth (Sm) microalloying on the thermal stability and phase selection along with the effect of nanocrystallization on the mechanical properties of amorphous melt-spun ribbons of Zr50Cu40Al10, Zr49Cu39.2Al9.8Sm2 and Zr48Cu38.4Al9.6Sm4 alloys were investigated using differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), Vickers and nanoindentation hardness tests and micropillar compression analysis. XRD and TEM analyses showed that all samples were fully amorphous in as-spun state; however, crystallization sequences for the Sm-free and the Sm micro-alloyed samples were different during devitrification. Combined study of XRD, DSC and TEM on melt-spun ribbons show that Zr48Cu38.4Al9.6Sm4 have nanocrystallization of Cu2Sm phase with an average diameter of 10 nm, which was absent in Zr50Cu40Al10, prior to crystallization of Cu10Zr7 phase. The nanoindentation and micropillar compression tests revealed Cu2Sm nanocrystals embedded in Zr48Cu38.4Al9.6Sm4 alloy improves strength and hardness. On the other hand, presence of these nanocrystals deteriorate shear band stability and thus result in a catastrophic brittle fracture through a single shear band burst. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier Science SA tr_TR
dc.relation.isversionof 10.1016/j.msea.2018.11.068 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Metallic Glasses tr_TR
dc.subject Nanocrystallization tr_TR
dc.subject Micropillar Compression Test tr_TR
dc.title Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses tr_TR
dc.type article tr_TR
dc.relation.journal Materials Science and Engineering A-Structural Materials Propertıes Mıcrostructure And Processıng tr_TR
dc.contributor.authorID 101579 tr_TR
dc.identifier.volume 743 tr_TR
dc.identifier.startpage 168 tr_TR
dc.identifier.endpage 174 tr_TR
dc.contributor.department Çankaya Üniversitesi, Fen - Edebiyat Fakültesi, Matematik Bölümü tr_TR


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