The enhancement of mechanical properties of commercially pure titanium (cpTi) can be achieved by grain refinement obtained by severe plastic deformation, but corrosion resistance of ultrafinegrained (UFG) cpTi is still under discussion. Therefore, the aim of this study was to estimate electrochemical behavior of UFG cpTi obtained by high pressure torsion under a pressure of 7.8GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. Electrochemical measurements were performed in artificial saliva with pH value of 4.0 at 37°C in order to simulate oral environment, because UFG cpTi is primarily developing for dental implant applications. UFG cpTi was investigated by electrochemical impedance spectroscopy (EIS). The obtained results indicate that HPT process significantly reduces the grain size and UFG cpTi shows better corrosion resistance compared to its coarse-grained (CG) counterpart.
TY - CONF
AU - Barjaktarević, Dragana
AU - Dimić, Ivana
AU - Cvijović-Alagić, Ivana
AU - Bajat, Jelena
AU - Rakin, Marko
PY - 2015
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5249
AB - The enhancement of mechanical properties of commercially pure titanium (cpTi) can be achieved by grain refinement obtained by severe plastic deformation, but corrosion resistance of ultrafinegrained (UFG) cpTi is still under discussion. Therefore, the aim of this study was to estimate electrochemical behavior of UFG cpTi obtained by high pressure torsion under a pressure of 7.8GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. Electrochemical measurements were performed in artificial saliva with pH value of 4.0 at 37°C in order to simulate oral environment, because UFG cpTi is primarily developing for dental implant applications. UFG cpTi was investigated by electrochemical impedance spectroscopy (EIS). The obtained results indicate that HPT process significantly reduces the grain size and UFG cpTi shows better corrosion resistance compared to its coarse-grained (CG) counterpart.
PB - Univerzitet u Beogradu, Mašinski fakultet
C3 - Proceedings of TEAM 2015
T1 - The electrochemical impedance spectroscopy study of ultrafine-grained titanium in artificial saliva
EP - 339
SP - 336
UR - https://hdl.handle.net/21.15107/rcub_technorep_5249
ER -
@conference{
author = "Barjaktarević, Dragana and Dimić, Ivana and Cvijović-Alagić, Ivana and Bajat, Jelena and Rakin, Marko",
year = "2015",
abstract = "The enhancement of mechanical properties of commercially pure titanium (cpTi) can be achieved by grain refinement obtained by severe plastic deformation, but corrosion resistance of ultrafinegrained (UFG) cpTi is still under discussion. Therefore, the aim of this study was to estimate electrochemical behavior of UFG cpTi obtained by high pressure torsion under a pressure of 7.8GPa with a rotational speed of 0.2 rpm up to 5 rotations at room temperature. Electrochemical measurements were performed in artificial saliva with pH value of 4.0 at 37°C in order to simulate oral environment, because UFG cpTi is primarily developing for dental implant applications. UFG cpTi was investigated by electrochemical impedance spectroscopy (EIS). The obtained results indicate that HPT process significantly reduces the grain size and UFG cpTi shows better corrosion resistance compared to its coarse-grained (CG) counterpart.",
publisher = "Univerzitet u Beogradu, Mašinski fakultet",
journal = "Proceedings of TEAM 2015",
title = "The electrochemical impedance spectroscopy study of ultrafine-grained titanium in artificial saliva",
pages = "339-336",
url = "https://hdl.handle.net/21.15107/rcub_technorep_5249"
}
Barjaktarević, D., Dimić, I., Cvijović-Alagić, I., Bajat, J.,& Rakin, M.. (2015). The electrochemical impedance spectroscopy study of ultrafine-grained titanium in artificial saliva. in Proceedings of TEAM 2015
Univerzitet u Beogradu, Mašinski fakultet., 336-339.
https://hdl.handle.net/21.15107/rcub_technorep_5249
Barjaktarević D, Dimić I, Cvijović-Alagić I, Bajat J, Rakin M. The electrochemical impedance spectroscopy study of ultrafine-grained titanium in artificial saliva. in Proceedings of TEAM 2015. 2015;:336-339.
https://hdl.handle.net/21.15107/rcub_technorep_5249 .
Barjaktarević, Dragana, Dimić, Ivana, Cvijović-Alagić, Ivana, Bajat, Jelena, Rakin, Marko, "The electrochemical impedance spectroscopy study of ultrafine-grained titanium in artificial saliva" in Proceedings of TEAM 2015 (2015):336-339,
https://hdl.handle.net/21.15107/rcub_technorep_5249 .
