Influence of plastic deformation on the microstructure and corrosion behaviour of Ti-10Mo-4Zr and Ti-6Al-4V alloys in the Ringer's solution at 37 °C

The influence of plastic deformation on the microstructure and passivity of Ti-6Al-4V and Ti-10Mo-4Zr is studied. The content of titanium-based compounds in the passive film formed on the alloys increases under straining. In the region where necking occurs, the β-phase content drops in Ti-6Al-4V. The grain orientation spread increases with increasing strain. The quality index of EBSD maps is affected on Ti-10Mo-4Zr (dislocation structures along preferential orientations). The corrosion behaviour is investigated in the Ringer's solution (37 °C). Results obtained in the anodic and cathodic domains are discussed considering changes described previously.