Wear and corrosion behaviour of Ti–13Nb–13Zr and Ti–6Al–4V alloys in simulated physiological solution

► Ti–13Nb–13Zr wear resistance is substantially lower than that of Ti–6Al–4V alloy. ► Wear of both alloys occurs by adhesion and abrasion, which operate simultaneously. ► Both alloys exhibit spontaneous passivity in Ringer’s solution at 37 °C. ► Corrosion resistance of martensitic Ti–6Al–4V and Ti–1...

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Bibliographic Details
Published in:Corrosion science 2011-02, Vol.53 (2), p.796-808
Main Authors: Cvijović-Alagić, I., Cvijović, Z., Mitrović, S., Panić, V., Rakin, M.
Format: Article
Language:English
Subjects:
A. Ringer’s solution
A. Ti orthopaedic alloys
Abrasion resistance
Abrasion resistant alloys
Alloys
Applied sciences
C. Corrosion resistance
C. Microstructures
C. Wear rate
Contact of materials. Friction. Wear
Corrosion
Corrosion environments
Corrosive wear
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Microstructure
Titanium base alloys
Wear resistance
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Summary:► Ti–13Nb–13Zr wear resistance is substantially lower than that of Ti–6Al–4V alloy. ► Wear of both alloys occurs by adhesion and abrasion, which operate simultaneously. ► Both alloys exhibit spontaneous passivity in Ringer’s solution at 37 °C. ► Corrosion resistance of martensitic Ti–6Al–4V and Ti–13Nb–13Zr alloys are very similar and improved in comparison to the two-phase (α + β) Ti–6Al–4V alloy. ► Ti–6Al–4V alloy with martensitic microstructure displays the best combination of both corrosion and wear resistance. Wear and corrosion behaviour of cold-rolled Ti–13Nb–13Zr alloy, with martensitic microstructure, and Ti–6Al–4V ELI alloy, in martensitic and two-phase (α + β) microstructural conditions, was studied in a Ringer’s solution. The wear experiments were performed at room temperature with a normal load of 40 N and sliding speeds 0.26, 0.5 and 1.0 m/s. The corrosion behaviour was studied at 37 °C using open circuit potential-time measurements and potentiodynamic polarization. It was found that Ti–13Nb–13Zr alloy has a substantially lower wear resistance than Ti–6Al–4V ELI alloy in both microstructural conditions. Surface damage extent increases with sliding speed increase and is always smallest for martensitic Ti–6Al–4V ELI alloy with highest hardness. Both alloys exhibit spontaneous passivity in Ringer’s solution. Corrosion potential values are similar for all three materials. However, Ti–13Nb–13Zr and martensitic Ti–6Al–4V ELI alloys show improved corrosion resistance comparatively to Ti–6Al–4V ELI alloy with (α + β) microstructure. Martensitic Ti–6Al–4V ELI alloy possesses the best combination of both corrosion and wear resistance, although its corrosion resistance is found to be slightly higher than that of the Ti–13Nb–13Zr alloy.
ISSN:0010-938X
1879-0496
DOI:10.1016/j.corsci.2010.11.014