Nanotube Nucleation Phenomena of Titanium Dioxide on the Ti-6Al-4V Alloy Using Anodic Titanium Oxide Technique

作者：Kim Hyun Ju; Jeong Yong Hoon; Choe Han Cheol^*

来源：Journal of Nanoscience and Nanotechnology, 2015, 15(1): 467-470.

DOI：10.1166/jnn.2015.8387

• ATO
• Nanotube
• Ti-6Al-4V
• FE-SEM
• Nucleation Phenomena

The purpose of this study was to investigate nanotube nucleation phenomena of titanium dioxide on the Ti-6Al-4V alloy were investigated using anodic titanium oxide technique. Heat treatment was performed at 1000 degrees C for 12 hour for formation of alpha+beta phase and water quenched. Ti-6Al-4V alloy was anodized in 1 M H3PO4 electrolytes containing 0.8 wt.% NaF at room temperature. After formation of nanotube was achieved, nanotube layer was eliminated, and then anodization was carried out repeatedly. The microstructures, phase transformation, and morphology of nanotubular Ti-6Al-4V alloy was examined by optical microscopy, X-ray diffraction (XRD), field emission scanning electron microscopy and atomic force microscopy. Microstructures of Ti-6Al-4V alloy showed the beta structure with alpha phase. From XRD pattern of Ti-6Al-4V alloy after heat treatment, beta peak was increased, whereas, alpha peak was decreased. The surface morphology appeared regular nanotube on alpha phase, whereas, nanotube morphology was not shown on the beta phase. alpha and beta phases were affected to form the nanotube of Ti-6Al-4V alloy.

• 出版日期2015-1