4.3 Article

Surface modification of titanium alloy by anodic oxidation method to improve its biocompatibility

Journal

CURRENT SCIENCE
Volume 120, Issue 5, Pages 907-914

Publisher

INDIAN ACAD SCIENCES
DOI: 10.18520/cs/v120/i5/907-914

Keywords

Anodic oxidation; FE-SEM; tribometer; X-ray diffraction

Ask authors/readers for more resources

The surface modification of titanium alloy was conducted using anodic oxidation method with different concentrations of sulphuric acid electrolyte. The study aimed to create a homogenized nano-sized porous structure on the titanium substrate. The anodized surface exhibited higher wear resistance compared to the bare metal surface, indicating potential for improved bio-compatibility features for bone cell attachment or cell proliferation.
Surface modification of titanium alloy (Ti-6Al-4V) has been performed by anodic oxidation method within various concentration ranges of sulphuric acid (H2SO4) electrolyte. It describes the oxidation kinetics of the anodizing process and critical analysis of process parameters like concentration of electrolyte, voltage, time and anodic current density, was performed to obtain homogenized nano-sized porous structure on the titanium substrate. XRD (X-ray diffraction technique) and FE-SEM ( field emission scanning electron microscopy) were utilized for phase analysis as well as for morphological survey. XRD report revealed that porous structure appeared at 0.4 M concentration of the electrolyte and at anodic voltage of 20 V. Anatase to rutile phase transformation was observed at 0.5 M of H2SO4. Tribological test of anodized as well as non-anodized surface performed on pin-on-disc type tribometer suggested that anodized surface possessed high wear resisting strength compared to bare metal surface. The present study tries to enhance the bio-compatible features especially bone cell attachment or cell proliferation of titanium alloy by improved surface characteristics.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.3
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available