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Martensitic Phase Transformation in TRIP-Steel/Mg-PSZ Honeycomb Composite Materials on Mechanical Load

Authors

  • Christian Weigelt,

    Corresponding author
    1. Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
    • Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
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  • Christos G. Aneziris,

    1. Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
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  • Harry Berek,

    1. Institute of Ceramic, Glass and Construction Materials, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
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  • David Ehinger,

    1. Institute of Materials Science, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
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  • Ulrich Martin

    1. Institute of Materials Science, Technische Universität Bergakademie Freiberg, Agricolastraße 17, 09596 Freiberg, (Germany)
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  • This scientific work was supported by the German Research Foundation (DFG) in terms of the Collaborative Research Centre “TRIP-Matrix Composites” (CRC 799). The authors also acknowledge the support of Dr. B. Ullrich with SEM-analysis.

Abstract

Composite materials have been in focus of scientific studies since decades. Metal-matrix composites have received extensive attention in the last years. The combination of a metastable austenitic TRIP-steel with magnesia partially stabilized zirconia is presented in this study. The stress induced martensitic phase transformation in both components leads to advantageous mechanical behavior. Raised compression strength as well as increased specific energy absorption on plastic deformation offers a range of structural and crash-absorption applications. Samples with zirconia additions are reinforced by volume increase during tetragonal-monoclinic phase transformation at compressive strains below 35%. The microstructure and phase evolution of partially stabilized zirconia as well as steel has been investigated by EBSD with purpose to correlate mechanical properties with phase evolution.

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