Tribological characterisation in dry sliding conditions of compocasted hybrid A356/SiCp/Grp composites with graphite macroparticles

  • Aleksandar VenclEmail author
  • Filip Vučetić
  • Biljana Bobić
  • Ján Pitel
  • Ilija Bobić


The influence of SiC microparticles reinforcement and graphite macroparticles addition on the friction and wear characteristics of A356 Al-Si alloys, produced by compocasting, has been assessed using a pin-on-disc tribometer. The incorporation of SiC reinforcement increased the coefficient of friction and reduced the wear. The addition of graphite did not reduce the coefficient of friction. In the case of hybrid composite with 1 wt% graphite, wear was more or less the same as with SiC reinforced composite, while in the case of hybrid composite with 3 wt% graphite, wear was further reduced. On the worn surfaces of hybrid composites, the presence of the discontinuous mixed surface layer, containing graphite and transferred counter-body material, was noticed.


Hybrid composites Graphite Friction Wear 


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This work has been performed as a part of activities within the projects TR 34028, TR 35021, TR 35040 and OI 172005. These projects are supported by the Republic of Serbia, Ministry of Education, Science and Technological Development, whose financial help is gratefully acknowledged. Collaboration through the CEEPUS network CIII-BG-0703 is also acknowledged.


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Authors and Affiliations

  1. 1.Faculty of Mechanical EngineeringUniversity of BelgradeBelgrade 35Serbia
  2. 2.Innovation Center of the Faculty of Mechanical Engineering in BelgradeBelgrade 35Serbia
  3. 3.Institute of Chemistry, Technology and MetallurgyUniversity of BelgradeBelgradeSerbia
  4. 4.Faculty of Manufacturing Technologies in PrešovTechnical University of KošicePrešovSlovakia
  5. 5.Institute of Nuclear Sciences “Vinca”University of BelgradeBelgradeSerbia

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