- Tytuł:
- Technological capabilities of surface layers formation on implant made of Ti-6Al-4V ELI alloy
- Autorzy:
-
Kiel-Jamrozik, M.
Szewczenko, J.
Basiaga, M.
Nowińska, K. - Powiązania:
- https://bibliotekanauki.pl/articles/306377.pdf
- Data publikacji:
- 2015
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
odporność korozyjna
infiltracja
stop tytanu
biomateriały
corrosion resistance
ion infiltration
metallic biomaterials
surface modification
titanium alloys - Opis:
- Purpose: The aim of the presented research was to find a combination of surface modification methods of implants made of the Ti-6Al-4V ELI alloy, that lead to formation of effective barrier for metallic ions that may infiltrate into solution. Methods: To this end, the following tests were carried out: roughness measurement, the voltamperometric tests (potentiodynamic and potentiostatic), and the ion infiltration test. Results: The electropolishing process resulted in the lowering of surface roughness in comparison with mechanical treatment of the surface layer. The anodization process and steam sterilization increased corrosion resistance regardless of the mechanical treatment or electropolishing. The crevice corrosion tests revealed that independent of the modification method applied, the Ti-6Al-4V ELI alloy has excellent crevice corrosion resistance. The smallest quantity of ions infiltrated to the solution was observed for surface modification consisting in the mechanical treatment and anodization with the potential of 97 V. Conclusions: Electric parameters determined during studies were the basis for effectiveness estimation of particular surface treatment methods. The research has shown that the anodization process significantly influences the pitting corrosion resistance of the Ti-6Al-4V ELI alloy independent of the previous surface treatment methods (mechanical and electrochemical). The surface layer after such modification is a protective barrier for metallic ions infiltrated to solution and protects titanium alloy against corrosive environment influence.
- Źródło:
-
Acta of Bioengineering and Biomechanics; 2015, 17, 1; 31-37
1509-409X
2450-6303 - Pojawia się w:
- Acta of Bioengineering and Biomechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł