Tribocorrosion of Passive Materials: A Review on Test Procedures and Standards

Figure 10

Potential shift towards more negative values due to a sliding process for a Ti6Al4V alloy with and without TiO₂ coatings generated by PEO technique in PBS solution (left) and impedance spectroscopy measurements obtained before and after sliding (right). The electrochemical state of the TiO₂ coating surface was not highly affected by sliding, and no influence of sliding on the corrosion resistance of either sample was observed [76].