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Effects of oil-in-water based nanolubricant containing TiO2 nanoparticles on the tribological behaviour of oxidised high-speed steel

Journal Article


Abstract


  • In this work, the effects of the developed oil-in-water (O/W) based nanolubricants containing TiO2 nanoparticles (NPs) on the tribological behaviour of oxidised high-speed steel (HSS) were studied, using pin-on-disc tests. The pin was made of HSS and, prior to the wear test, was oxidised to form a scale layer on the surface. The results show that the TiO2 NPs in the O/W lubricant can achieve an excellent reduction of the coefficient of friction (COF) and improve the anti-wear properties of pins with oxidised surfaces. The TiO2 NPs in the nanolubricant were found to have the filling and tribo-sintering effects. The NP aggregation around the contact area was observed with higher TiO2 NP concentrations in the nanolubricant, revealing a larger NP aggregation area. Based on the results and analysis, the mechanism about the effects of the TiO2 NPs in the O/W based nanolubricant on the wear and COF were well explained.

Publication Date


  • 2017

Citation


  • Xia, W., Zhao, J., Wu, H., Jiao, S. & Jiang, Z. (2017). Effects of oil-in-water based nanolubricant containing TiO2 nanoparticles on the tribological behaviour of oxidised high-speed steel. Tribology International, 110 77-85.

Scopus Eid


  • 2-s2.0-85013225352

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/186

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 77

End Page


  • 85

Volume


  • 110

Place Of Publication


  • United Kingdom

Abstract


  • In this work, the effects of the developed oil-in-water (O/W) based nanolubricants containing TiO2 nanoparticles (NPs) on the tribological behaviour of oxidised high-speed steel (HSS) were studied, using pin-on-disc tests. The pin was made of HSS and, prior to the wear test, was oxidised to form a scale layer on the surface. The results show that the TiO2 NPs in the O/W lubricant can achieve an excellent reduction of the coefficient of friction (COF) and improve the anti-wear properties of pins with oxidised surfaces. The TiO2 NPs in the nanolubricant were found to have the filling and tribo-sintering effects. The NP aggregation around the contact area was observed with higher TiO2 NP concentrations in the nanolubricant, revealing a larger NP aggregation area. Based on the results and analysis, the mechanism about the effects of the TiO2 NPs in the O/W based nanolubricant on the wear and COF were well explained.

Publication Date


  • 2017

Citation


  • Xia, W., Zhao, J., Wu, H., Jiao, S. & Jiang, Z. (2017). Effects of oil-in-water based nanolubricant containing TiO2 nanoparticles on the tribological behaviour of oxidised high-speed steel. Tribology International, 110 77-85.

Scopus Eid


  • 2-s2.0-85013225352

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/186

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 77

End Page


  • 85

Volume


  • 110

Place Of Publication


  • United Kingdom