The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion
Authors
Barjaktarević, Dragana R.Bajat, Jelena B.

Cvijović-Alagić, Ivana

Dimić, Ivana
Hohenwarter, Anton

Đokić, Veljko R.

Rakin, Marko P.
Conference object (Published version)
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In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy 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. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37°C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and p...otentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance. © 2018 The Authors.
Keywords:
corrosion resistance / biomaterials / high pressure torsion / titanium alloySource:
Procedia Structural Integrity, 2018, 13, 1834-1839Funding / projects:
- Micromechanical criteria of damage and fracture (RS-174004)
- Synthesis, processing and applications of nanostructured multifunctional materials with defined properties (RS-45019)
Note:
- 22nd European Conference on Fracture (ECF) - Loading and Environmental Effects on Structural Integrity (Aug 26-31, 2018; Belgrade, Serbia)
DOI: 10.1016/j.prostr.2018.12.332
ISSN: 2452-3216
WoS: 000459860900302
Scopus: 2-s2.0-85064668197
URI
https://linkinghub.elsevier.com/retrieve/pii/S2452321618305730https://vinar.vin.bg.ac.rs/handle/123456789/8164
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VinčaTY - CONF AU - Barjaktarević, Dragana R. AU - Bajat, Jelena B. AU - Cvijović-Alagić, Ivana AU - Dimić, Ivana AU - Hohenwarter, Anton AU - Đokić, Veljko R. AU - Rakin, Marko P. PY - 2018 UR - https://linkinghub.elsevier.com/retrieve/pii/S2452321618305730 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8164 AB - In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy 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. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37°C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance. © 2018 The Authors. C3 - Procedia Structural Integrity T1 - The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion VL - 13 SP - 1834 EP - 1839 DO - 10.1016/j.prostr.2018.12.332 ER -
@conference{ author = "Barjaktarević, Dragana R. and Bajat, Jelena B. and Cvijović-Alagić, Ivana and Dimić, Ivana and Hohenwarter, Anton and Đokić, Veljko R. and Rakin, Marko P.", year = "2018", abstract = "In order to optimize and enhance the implant material properties, metallic materials may be modified by severe plastic deformation (SPD) procedures. One of the most attracting SPD methods is high-pressure torsion (HPT), which is method where deformation is obtained mainly by simple shear. In the present study ultrafine-grained titanium (UFG cpTi) and ultrafine-grained Ti-13Nb-13Zr (UFG TNZ) alloy 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. In order to analyse microstructure of materials before and after HPT process, scanning electron microscope (SEM) was used. The aim of this study was to determine the corrosion resistance of titanium and its alloy after HPT process. Electrochemical measurements were performed in artificial saliva with a pH value of 5.5 at 37°C, in order to simulate the oral environment. The materials were analysed by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. All examined materials showed good corrosion resistance, but results indicate that HPT process can improves corrosion resistance. © 2018 The Authors.", journal = "Procedia Structural Integrity", title = "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion", volume = "13", pages = "1834-1839", doi = "10.1016/j.prostr.2018.12.332" }
Barjaktarević, D. R., Bajat, J. B., Cvijović-Alagić, I., Dimić, I., Hohenwarter, A., Đokić, V. R.,& Rakin, M. P.. (2018). The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity, 13, 1834-1839. https://doi.org/10.1016/j.prostr.2018.12.332
Barjaktarević DR, Bajat JB, Cvijović-Alagić I, Dimić I, Hohenwarter A, Đokić VR, Rakin MP. The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion. in Procedia Structural Integrity. 2018;13:1834-1839. doi:10.1016/j.prostr.2018.12.332 .
Barjaktarević, Dragana R., Bajat, Jelena B., Cvijović-Alagić, Ivana, Dimić, Ivana, Hohenwarter, Anton, Đokić, Veljko R., Rakin, Marko P., "The corrosion resistance in artificial saliva of titanium and Ti-13Nb-13Zr alloy processed by high pressure torsion" in Procedia Structural Integrity, 13 (2018):1834-1839, https://doi.org/10.1016/j.prostr.2018.12.332 . .