Improving the fretting biocorrosion of Ti6Al4V alloy bone screw by decorating structure optimised TiO2 nanotubes layer
Jiajun Luoa, Maryam Tamaddona, Changyou Yanb, Shuanhong Mab,*(), Xiaolong Wangb, Feng Zhoub, Chaozong Liua,*()

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Fig. 4.. FESEM images of NT and SONT, top view of NT (a1) and SONT (b1), side view of NT (a2) and SONT (b2) and the bottom part view NT (a3) and SONT (b3). The structure of NT and SONT were shown highly similarity except the bottom, a flat layer was bonded nanotubes bottom in SONT.