Friction and Wear of Ion Implanted Metals

  • N. E. W. Hartley
  • G. Dearnaley
  • J. F. Turner
  • J. Saunders


Recent work has demonstrated that large changes in friction can occur as the result of the implantation of various selected ions into steel [1] The present contribution supplements these data by describing experiments in which equally striking reductions in wear are observed for the case of a pin under heavy load rubbing on an ion implanted disc. B+, N+ and Mo+ implanted into steel to doses between 1016 and 1018 ions-cm-2 reduce wear on a test pin by more than a factor 10. Similar effects are observed for implantations into Cu. The observation that the beneficial effect of ion implantation persists for times very much greater than those sufficient for complete removal of the implanted layer during rubbing contact suggests that some initial rapid wear stage is substantially reduced. Alternatively, a large decrease in oxidation and subsequent wear particle nucleation may have occurred. Backscattering experiments with a 2,0 MeV He+ ion microbeam reveal that for a steel specimen implanted with 2.8.1016 ions-cm-2 of Ag a substantial proportion of the implanted metal remains within the surface even after repeated severe deformation during friction testing.


Wear Testing Solid Lubricant Friction Testing 440C Steel Wear Parameter 
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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • N. E. W. Hartley
    • 1
  • G. Dearnaley
    • 1
  • J. F. Turner
    • 1
  • J. Saunders
    • 1
  1. 1.A.E.R.E. HarwellDidcot, BerkshireUK

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