Acta Metallurgica Sinica (English Letters) ›› 2016, Vol. 29 ›› Issue (10): 902-910.DOI: 10.1007/s40195-016-0470-6

Special Issue: 2016纳米材料专辑 2016复合材料专辑

• Orginal Article • Previous Articles     Next Articles

Wear and Friction Properties of Electrodeposited Ni-Based Coatings Subject to Nano-enhanced Lubricant and Composite Coating

Rizwan Bajwa(),Zulfiqar Khan,H. Nazir,Vivek Chacko,Adil Saeed   

  1. NanoCorr, Energy and Modelling Research Group, Bournemouth University, Poole, UK
  • Received:2016-04-10 Online:2016-10-10 Published:2016-11-08

Abstract:

This paper presents research findings on the tribological performance of electrodeposited coatings subject to nano-lubricants with the addition of nano-Al2O3 and graphene and Ni/nano-Al2O3 composite coatings. Electrodeposited coatings were produced by using a pulse electrodeposition method. Tribological experiments were conducted by using a linear reciprocating ball on flat sliding tribometer. Experimental results confirmed that the wear and friction resistance properties were significantly enhanced by doping of nano-effects in the lubricating oil and composite coating. The addition of Al2O3 nanoparticles in the lubricating oil showed the best tribological properties, followed by Ni-Al2O3 composite coatings and nano-oil with graphene. The surface morphology and microstructure of electrodeposited coatings were examined by scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction. The wear mechanisms of these coatings subjected to tribological testing were investigated by post-test surface analyses. This research provides a novel approach to design durable nano-coatings for tribological applications in various industries such as automotive, aerospace, locomotive and renewable energy technologies.

Key words: Tribology, Nanoparticles, Graphene, Nano-additives, Nano-coatings