Effects of environment and stress concentration factor on Ti-6Al-4V specimens subjected to quasi-static loading

The bimodal titanium alloy Ti-6Al-4V is a well-known high strength-to-mass ratio material in different engineering sectors. Furthermore, the rapid oxidation of the surface protects the base material from the interaction with a wide spectrum of corrosive environments. However, the presence of surface defects and the mechanical loading may compromise the effectiveness of the oxide film. Quasi-static loading tests were carried out on different smooth and notched Ti-6Al-4V specimens in order to analyze the role of environment and stress concentration factor.