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dc.creatorBarjaktarević, Dragana
dc.creatorRakin, Marko
dc.creatorMeđo, Bojan
dc.creatorĐokić, Veljko
dc.date.accessioned2022-11-16T09:34:41Z
dc.date.available2022-11-16T09:34:41Z
dc.date.issued2018
dc.identifier.isbn78-86-6022-098-3
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/5250
dc.description.abstractThe commercially pure titanium (cpTi) and especially titanium (Ti) alloys are materials increasingly used in orthopaedic and dental implants. In order to enhance the implant material properties, Ti-based materials may be modified by severe plastic deformation (SPD) methods. One of the most attractive SPD methods is high-pressure torsion (HPT), as a method for obtaining submicron-sized grains, with the aim to improve, among others, mechanical properties of metallic materials. In the present study, ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy samples were obtained by high pressure torsion (HPT) under a pressure of 4.1 GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. The homogeneity of the material was determined by using Vickers microhardness tester and analysing the obtained microhardness profile along the samples diameters. The results show that materials are reasonably homogeneous after HPT processing. The aim of this study is to determine the mechanical behaviour of the commercially pure titanium and titanium alloy before and after HPT processing using the nanoindentation technique. Obtained results show that ultrafine-grained materials have lower modulus of elasticity than coarsegrained (CG) materials, which means that the values are closer to those of bones, making the discontinuity of mechanical properties at the bone-implant interface less pronounced. On the other hand, UFG materials have higher values of nanohardness than CG materials.sr
dc.language.isoensr
dc.publisherUniverzitet u Novom Sadu, Fakultet tehničkih naukasr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/174004/RS//sr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceProceedings of TEAM 2018 9 th International Scientific and Expert Conferencesr
dc.subjectbiomaterials, high pressure torsion, modulus of elasticity, nanoindentation, titanium alloyssr
dc.titleNanoindentation study of ultrafine-grained titanium-based materialssr
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dc.citation.epage122
dc.citation.spage117
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/12982/bitstream_12982.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_5250
dc.type.versionpublishedVersionsr


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