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A response to—“Comment on the evaluation of the constant β relating the contact stiffness to the contact area in nanoindentation for sphero-conical indenters:” Comment to paper “Penetration depth and tip radius dependence on the correction factor in nanoindentation measurements” by J.M. Meza et al. [J. Mater. Res. 23(3), 725 (2008)]

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Abstract

The signification of the correction factor β that we defined for elastic material [J.M. Meza et al. J. Mater. Res. 23(3), 725, (2008)] does not correspond to that of factor β in the Sneddon relationship between unloading contact stiffness, elastic modulus, and contact area as remarked by Durst et al. in their Comment (doi:10.1557/jmr.2012.41). To complete the results of Durst et al., the calculation of β is extended to a larger penetration depth range. It is shown that β depends on the depth to tip radius ratio, h/R, and on the Poisson’s ratio according to dimensionless analysis. The variation range of β is about 1.02–1.09 for 0.3 < h/R < 3 for purely elastic materials but can be much larger in case of elastic–plastic materials as shown [F. Abbes et al. J. Micromech. Microeng. 20, 65003 (2010)].

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References

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Authors and Affiliations

  1. Materials Science and Technology Group, CTM, School of Materials Engineering, National University of Colombia, Medellin, Colombia

    Juan Manuel Meza

  2. Laboratoire de Microscopies et d’Étude de Nanostructures, EA 3799, Université de Reims Champagne Ardenne, 51685, Reims Cedex 2, France

    Fazilay Abbes & Michel Troyon

  3. Grupo de Investigacion en Nuevos Materiales (GINuMa) Universidad Pontificia Bolivariana, Medellin, Colombia

    Jaime Alexis Garcia Guzman

Authors
  1. Juan Manuel Meza
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  2. Fazilay Abbes
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  3. Jaime Alexis Garcia Guzman
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  4. Michel Troyon
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Correspondence to Michel Troyon.

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Meza, J.M., Abbes, F., Guzman, J.A.G. et al. A response to—“Comment on the evaluation of the constant β relating the contact stiffness to the contact area in nanoindentation for sphero-conical indenters:” Comment to paper “Penetration depth and tip radius dependence on the correction factor in nanoindentation measurements” by J.M. Meza et al. [J. Mater. Res. 23(3), 725 (2008)]. Journal of Materials Research 27, 1208–1210 (2012). https://doi.org/10.1557/jmr.2012.44

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