Publication Details

Wu, H., Zhao, J., Cheng, X., Xia, W., He, A., Yun, J., Huang, S., Wang, L., Huang, H., Jiao, S. & Jiang, Z. (2018). Friction and wear characteristics of TiO2 nano-additive water-based lubricant on ferritic stainless steel. Tribology International, 117 24-38.


The tribological behaviour of innovative TiO2 nano-additive water-based lubricant on ferritic stainless steel (FSS) 445 was characterised on a ball-on-disk tribometer. Non-oxidised (clean) and pre-oxidised FSS 445 disks with original rough surfaces were both applied in the tribological tests at room temperature. The results show that the water-based nanolubricants with concentrations of 0.4–8.0 wt% TiO2 can significantly reduce the coefficient of friction (COF) on the two types of disks. The 4.0 wt% TiO2 lubricant exhibits optimal tribological properties, including the lowest COF and the strongest anti-wear ability on the applied balls under all lubrication conditions. The lubrication mechanisms are primarily ascribed to the formation of tribofilm and the ball-bearing effect of the TiO2 nanoparticles, respectively, on the two different disks.



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