Friction, wear and structure of Cu samples in the lubricated steady friction state

Alexey Moshkovich, Vladislav Perfilyev, Louisa Meshi, Shmuel Samuha, Sidney Cohen, Hagai Cohen, Alex Laikhtman, Lev Rapoport

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Friction and wear of copper rubbed with lubrication in wide range of loads and sliding velocities were studied. The results of friction and wear experiments are presented as the Stribeck curve where the boundary lubrication (BL), mixed (ML) and elasto-hydrodynamic lubrication (El-IL) regions are considered. The structural state of subsurface layers in different lubricant regions is studied by X-ray photoelectron spectroscopy, optical, transmission and scanning microscopy analysis. Dislocation density of dislocations in El-IL and BL lubricant regimes was determined. Nanohardness at thin surface layers rubbed under different lubricant regimes is compared. The dominant friction and wear mechanisms in different lubrications regions are discussed.

Original languageEnglish
Pages (from-to)154-160
Number of pages7
JournalTribology International
Issue number1
StatePublished - Feb 2012
Externally publishedYes


  • Copper
  • Friction
  • Microstructure
  • Wear


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