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. 9.. SEM observations of worn thread ridges of machined (MA 1-5), NT (NT 1-5) and SONT (SONT 1-5) screw, bar = 300 μm.