Effect of Volume Fraction on the Flow Behavior of Al-SiC Composites Considering the Spatial Distribution of Delaminated Particles

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  • Zhang Di
    Mechanical System Engineering, Graduate School of Engineering, Hiroshima University
  • Sugio Kenjiro
    Mechanical System Engineering, Graduate School of Engineering, Hiroshima University
  • Sakai Kazuyuki
    Mechanical System Engineering, Graduate School of Engineering, Hiroshima University
  • Fukushima Hiroshi
    Mechanical System Engineering, Graduate School of Engineering, Hiroshima University
  • Yanagisawa Osamu
    Mechanical System Engineering, Graduate School of Engineering, Hiroshima University

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Abstract

The effect of the volume fraction of second-phase particles on the distribution of damaged particles and its relation to the tensile deformation behavior were investigated in the particle reinforced metal-matrix composites, Al-SiC. The spatial distributions of all SiC particles and the delaminated SiC particles were evaluated from their two-dimensional local number (LN2D). During tensile deformation, larger SiC particles in more highly clustered regions were more easily delaminated at the particle/matrix interface. The amount of particle delamination in the more highly clustered region increased with increasing volume fraction and strain during tensile deformation. A model was developed to explain the flow behavior of the composites; this showed a good fit to the experimental results in the presence of particle damage, especially when the spatial distribution of damaged particles was taken into consideration.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 49 (3), 661-670, 2008

    The Japan Institute of Metals and Materials

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