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Micro-indentation creep of porous nanocrystalline metallic and composite compacts

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Abstract

Experimental observations concerning the time dependent variation in the room temperature microhardness of porous compacts of nanocrystalline Palladium are presented. These data and the earlier findings on the elevated temperature response of compacts of nanocrystalline composites Fe-63 vol% TiN and Ni-58 vol% TiN are interpreted as due to power law creep. The equations developed are validated using the experimental results.

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Author notes

  1. K. A. Padmanabhan

    Present address: School of Physics, University of Hyderabad, Hyderabad, 500 046, India

Authors and Affiliations

  1. Institute of Nanotechnology, Research Centre Karlsruhe, Karlsruhe, P.O. Box 3640, D 76021, Germany

    K. A. Padmanabhan & H. Hahn

  2. Institute of Materials Science, Darmstadt University of Technology, Petersenstr. 23, Darmstadt, D 64287, Germany

    P. Mondal & H. Hahn

Authors
  1. K. A. Padmanabhan
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  2. P. Mondal
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  3. H. Hahn
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Correspondence to K. A. Padmanabhan.

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Padmanabhan, K.A., Mondal, P. & Hahn, H. Micro-indentation creep of porous nanocrystalline metallic and composite compacts. J Mater Sci 40, 6113–6120 (2005). https://doi.org/10.1007/s10853-005-3171-5

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  • DOI: https://doi.org/10.1007/s10853-005-3171-5

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