Tribological assessment of coated piston ring-cylinder liner contacts under bio-oil lubricated conditions

Yubin Peng, Yufu Xu*, Jian Geng, Karl D. Dearn, Xianguo Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
468 Downloads (Pure)


To alleviate high friction and corrosive wear in piston ring and cylinder liner friction pairs lubricated with bio-oil, four kinds of coatings: Ni-P, Ni-P-MoS2, Ni-P-GO and Ni-P-MoS2-GO have been prepared via chemical nickel plating technology. A multi-functional engine piston ring-cylinder liner tribometer was employed to evaluate their tribological behaviors. Furthermore, the changes of the bio-oil under different frictional conditions were analyzed by Fourier transform infrared spectroscopy. The results show that adhesive wear, scratching, spalling and mild wear took place respectively on the worn surfaces of piston rings with Ni-P, Ni-P-MoS2, Ni-P-GO, and Ni-P-MoS2-GO coatings. Ni-P-MoS2-GO coated piston rings showed excellent friction-reducing and anti-wear performance and subsequently have great potential for accelerating the application of bio-oil in IC engines.
Original languageEnglish
Pages (from-to)283-293
Number of pages11
JournalTribology International
Early online date7 Dec 2016
Publication statusPublished - Mar 2017


  • Cylinder liner
  • Graphene oxide
  • MoS
  • Piston ring

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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