Abstract
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.
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W.C. Oliver, R. Hutchings and J.B. Pethica, in: Microindentation Techniques in Materials Science and Engineering, ASTM STP 889, <nt>eds.</nt> P.J. Blau and B.R. Lawn (American Society for Testing and Materials, Philadelphia, 1986) p. 90.
D.L. Joslin and W.C. Oliver, J. Mater. Res. 5 (1990) 123.
J. Mencik and M.V. Swain, J. Mater. Res. 10 (1995) 1491.
D. Tabor, The Hardness of Metals (Clarendon Press, Oxford, 1951).
M.S. Bobji, S.K. Biswas and J.B. Pethica, Appl. Phys. Lett. 73 (1997) 1059.
M.S. Bobji, M. Fahim and S.K. Biswas, Tribol. Lett. 2 (1996) 381.
M.S. Bobji and S.K. Biswas, J. Mater. Res. 13 (1998) 3227.
M.S. Bobji and S.K. Biswas, in: Surface Modification Technologies X, <nt>ed.</nt> T.S. Sudhardsan (The Institute of Metals, London, 1997).
H.A. Fransis, Wear 45 (1977) 221.
K.L. Johnson, Contact Mechanics (Cambridge Univ. Press, Cambridge, 1971).
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Bobji, M., Biswas, S. Hardness of a surface containing uniformly spaced pyramidal asperities. Tribology Letters 7, 51–56 (1999). https://doi.org/10.1023/A:1019192514107
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DOI: https://doi.org/10.1023/A:1019192514107