Friction and wear characteristics of TiO2 nano-additive water-based lubricant on ferritic stainless steel

Authors

Hui Wu, University of WollongongFollow
Jingwei Zhao, University of WollongongFollow
Xiawei Cheng, University of WollongongFollow
Wenzhen Xia, University of WollongongFollow
Anshun He, University of Queensland
Jung-Ho Yun, University of QueenslandFollow
Shuiquan Huang, University of Queensland
Lianzhou Wang, University of QueenslandFollow
Han Huang, University of Queensland
Sihai Jiao, Baosteel, Baosteel Research InstituteFollow
Zhengyi Jiang, University of WollongongFollow

RIS ID

115929

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.

Abstract

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.