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Uticaj nanostrukturne modifikacije površine na svojstva komercijalno čistog titana za primenu u medicini
The influence of nanostructure surface modification on the properties of commercially pure titanium for application in medicine
dc.creator | Mihajlović, Dragana | |
dc.creator | Međo, Bojan | |
dc.creator | Đokić, Veljko | |
dc.creator | Bajat, Jelena | |
dc.creator | Rakin, Marko | |
dc.creator | Putić, Slaviša | |
dc.date.accessioned | 2024-02-07T12:12:26Z | |
dc.date.available | 2024-02-07T12:12:26Z | |
dc.date.issued | 2023 | |
dc.identifier.isbn | 978-86-905702-2-5 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7172 | |
dc.description.abstract | Intenzivno plastično deformisanje (IPD, eng. Severe Plastic Deformation, SPD) jesu različiti savremeni postupci čiji je osnovni cilj dobijanje sitnozrne strukture (eng. ultrafine-grained, UFG) metalnih materijala. Sitnozrni metalni materijali najčešće pokazuju poboljšana mehanička svojstva u odnosu na metalne materijale dobijene konvencionalnim postupcima izrade, dok je koroziona otpornost ovih materijala još uvek nedovoljno ispitana. Jedna od metoda intenzivnog plastičnog deformisanja je i metoda uvijanja pod visokim pritiskom (UVP, eng. High Pressure Torsion, HPT). U cilju ispitivanja uticaja nanostrukturne modifikacije površine na svojstva sitnozrnog komercijalnog čistog titana (korozionu postojanost, površinski modul elastičnosti i tvrdoću) u radu je urađena elektrohemijska anodizacija. Karakterizacija površinske modifikovane strukture kod sitnozrnog komercijalnog čistog titana urađena je primenom skenirajuće elektronske mikroskopije (eng. Scanning Electron Microscopy, SEM). Homogenost materijala nakon UVP postupka procenjen je merenjem mikrotvrdoće duž prečnika uzoraka primenom metode po Vikersu (eng. Vickers). Otpornost prema koroziji sitnozrnog komercijalnog čistog titana pre i posle elektrohemijske andizacije ispitana je primenom potenciodinamičke metode, pri čemu je pokazano povećanje korozione otpornosti u simuliranom rastvoru ljudskog organizma. Karakterizacija površine sitnozrnog komercijalnog čistog titana primenom nanoindentacije pokazala je smanjenje vrednosti površinskog modula elastičnosti i tvrdoće kod materijala sa nanostrukturnim oksidnim slojem, koje su bliže vrednostima koštanog tkiva u ljudskom organizmu. | sr |
dc.description.abstract | Severe Plastic Deformation (SPD) are modern procedures whose main goal is to obtain an ultrafine-grained structure of metallic materials. Ultrafine-grained metallic materials show improved mechanical properties compared to metallic materials obtained by conventional manufacturing methods, while the corrosion resistance of these materials is still insufficiently tested. One of the methods of Severe Plastic Deformation is the method of High Pressure Torsion (HPT). In order to examine the influence of nanostructural surface modification on the properties of ultrafine-grained commercially pure titanium (corrosion resistance, surface modulus of elasticity and hardness), electrochemical anodization was performed. The characterization of the surface modified structure of ultrafine-grained commercially pure titanium was performed using Scanning Electron Microscopy (SEM). The homogeneity of the material after the HPT procedure was assessed by measuring the microhardness along the diameter of the samples using the Vickers method. Corrosion resistance of ultrafine-grained commercially pure titanium before and after electrochemical andization was tested using the potentiodynamic method, where an increase corrosion resistance in a simulated solution of the human organism was demonstrated. The characterization of the surface of the comercially pure titanium using nanoindentation showed a decrease in the values of the surface modulus of elasticity and hardness for titanium with a nanostructured oxide layer, which are closer to the values of bone tissue in the human body. | sr |
dc.language.iso | sr | sr |
dc.publisher | Požarevac : Savez društava inženjera i tehničara grada Požarevca | sr |
dc.publisher | Požarevac : Društvo hemičara, tehnologa i metalurga | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200287/RS// | sr |
dc.rights | restrictedAccess | sr |
dc.source | Zbornik radova / Savetovanje "Novi materijali i mogućnosti njihove primene", Požarevac, 2023 godine | sr |
dc.subject | Postupak uvijanja pod visokim pritiskom (UVP postupak) | sr |
dc.subject | elektrohemijska anodizacija | sr |
dc.subject | sitnozrni titan | sr |
dc.subject | otpornost na koroziju | sr |
dc.subject | površinska fizička i mehanička svojstva | sr |
dc.subject | High pressure torsion process (HPT process) | sr |
dc.subject | electrochemical anodization | sr |
dc.subject | ultrafine-grained titanium | sr |
dc.subject | corrosion resistance | sr |
dc.subject | surface physical and mechanical properties | sr |
dc.title | Uticaj nanostrukturne modifikacije površine na svojstva komercijalno čistog titana za primenu u medicini | sr |
dc.title | The influence of nanostructure surface modification on the properties of commercially pure titanium for application in medicine | sr |
dc.type | conferenceObject | sr |
dc.rights.license | ARR | sr |
dc.citation.epage | 60 | |
dc.citation.spage | 51 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_technorep_7172 | |
dc.type.version | publishedVersion | sr |