Anodization of Titanium Alloy (Grade 5) to Obtain Nanoporous Surface Using Sulfuric Acid Electrolyte

Abstract

The work reported in this research article concerns titanium oxide film obtained on Ti6Al4V alloy by an anodic oxidation method within the sulfuric acid electrolyte to achieve an optimized value of the process parameters. Anodization was carried out at room temperature under various concentration ranges of the electrolyte and commercial pure aluminum as a counter electrode. Phase analysis revealed that 0.5M H₂SO₄ leads anatase to rutile transformation. Various exercise sets were prepared to determine the effects of various process parameters e.g. anodic voltage, the concentration of the electrolyte and current density. It was observed that anodic current density increases by increasing applied voltage and the temperature of the electrolyte. SEM (Scanning Electron Microscopy) analysis revealed that incremental change in the anodizing voltage leads to deposition rate of the oxide layer or say thickness and also increases in pore diameter.

KEYWORDS:

• Anodization
• Phase analysis
• Scanning electron microscopy analysis
• Sulfuric acid

Acknowledgements

The author is thankful to Director, Shaheed Bhagat Singh State Technical Campus, Ferozepur, Punjab, (India) to provide setup for anodization and wear test rig at college campus, also grateful toward IIC (Institute Instrumentation Center), IIT Roorkee, India for their supportive and favorable act to perform further testing equipment to characterize samples.

Additional information

Notes on contributors

Anil Kumar

Anil Kumar has received his PG degree From GJUS & T, Hisar (India) in mechanical engineering in 2012. After PG he joined as an assistant professor in the Department of Mechanical Engineering at Om Group of Institution Hisar, along with this he entered into PhD in I K G P T U Jalandhar, (India) and got registration as a research scholar in 2014. He has teaching experience of more than seven years. E-mail: [email protected]