期刊
TRIBOLOGY INTERNATIONAL
卷 117, 期 -, 页码 24-38出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2017.08.011
关键词
TiO2 nano-additive; Water-based lubricant; Coefficient of friction; Ferritic stainless steel
资金
- Baosteel-Australia Joint Research and Development Centre (BAJC) [BA-13012]
- Australian Research Council (ARC) [LP150100591]
- University of Wollongong
- China Scholarship Council (CSC)
- Australian Research Council [LP150100591] Funding Source: Australian Research Council
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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