INTERACTION OF Ti-6 wt.% Si ALLOY WITH TISSUE FLUID: EXPERIMENTAL MODELING

The methods of potentiodynamic polarization curves and quantitative Auger electron spectroscopy are used to determine the mechanism whereby a dense protective nanofilm (up to 20 nm thick) forms. The film consists of Ti2O, TiO, and Ti2O3 lower titanium oxides and forms under the layer of TiO2 (10 nm) and oxygen chemisorbed over an orthopedic prosthesis (90.2 at.% Ti-9.8 at.% Si alloy) during electrolysis in a 3% NaCl solution, as the main component of the tissue fluid (Hank's physiological solution).