Improving the fretting biocorrosion of Ti6Al4V alloy bone screw by decorating structure optimised TiO2 nanotubes layer

Jiajun Luo, Maryam Tamaddon, Changyou Yan, Shuanhong Ma, Xiaolong Wang, Feng Zhou, Chaozong Liu

Fig. 3. FESEM images of the surfaces of MA, NT and SONT screws. The micro pits were formed on both NT and SONT surface (black arrows).