A Recently Micro- and Nano-Scale Rough Ti6Al4V Surface Manufactured Using Pre-Treatment NaOH-Anodization Method

In this study, the investigation determines how the NaOH solution used before the anodizing process can affect the structure, roughness, and contact angle of Ti6Al4V surface. In anodizing process, the voltage of 120 volts and constant current of 5 mA were employed. Ti6Al4V plates (1 x 1 cm2) were used as the anode and cathode. The samples were gradually polished to remove any scratches that would have interfered with the anodizing process and leave the titanium surface pristine. The material was cleaned using a mixture of methanol and acetone. After that, pre-treatment before the anodizing process, which was used NaOH (1, 5, and 10 mol) immersed the samples. Then samples were cleaned by DI Water. The solution employed in the anodizing process contains 0.132 grams of NH4F, 0.8 ml of deionized water, and 39.2 ml of ethylene glycol. The anodizing process took four hours. The results of the tests revealed that the TiO2 layer's composition included the components Ti and O. The sample's surface roughness increased, but the sample's water contact angle decreased. In summary, performing pre-treatment procedures is important to adequately condition the bioactive titanium surface. and the bioactive properties of titanium are certainly very useful in its application in the field of orthopedic implants.