Tribology Letters

, Volume 7, Issue 1, pp 51–56 | Cite as

Hardness of a surface containing uniformly spaced pyramidal asperities

  • M.S. Bobji
  • S.K. Biswas


Pyramidal asperities of different apical angle were machined on a flat copper surface. Hardness was estimated from the load–displacement graphs obtained by pressing a spherical rigid indenter onto the asperities. The variation of hardness with apical angle and pitch was recorded with a view to contributing to the development of a general framework for relating measured hardness to the surface roughness.

surface roughness indentation multiple asperities contact 


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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • M.S. Bobji
    • 1
  • S.K. Biswas
    • 1
  1. 1.Department of Mechanical EngineeringIndian Institute of ScienceBangaloreIndia

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