Počet záznamů: 1

Investigation of phase transformations by in-situ neutron diffraction in a Co-Re-based high temperature alloy

  1. 1.
    0351180 - UJF-V 2011 RIV NL eng J - Článek v odborném periodiku
    Mukherji, D. - Strunz, Pavel - Gilles, R. - Hofmann, M. - Schmitz, F. - Rösler, J.
    Investigation of phase transformations by in-situ neutron diffraction in a Co-Re-based high temperature alloy.
    Materials Letters. Roč. 64, č. 23 (2010), s. 2608-2611 ISSN 0167-577X
    Výzkumný záměr: CEZ:AV0Z10480505
    Klíčová slova: Superalloy * Carbide * Neutron diffraction
    Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
    Impakt faktor: 2.120, rok: 2010

    In-situ neutron diffraction at high temperatures was used to investigate phase transformation in a Co-Re-based alloy. Stability of carbides and transformation of Co matrix from epsilon (hcp) to gamma (fcc) phase were studied. The epsilon = gamma phase transformation exhibited a large hysteresis with temperature. The alloy has a complex microstructure with Cr23C6. TaC and sigma phase stable over a wide temperature range. The hysteresis is the result of composition interplay between Co-matrix and other phases, e.g. Cr-carbide and sigma. TaC is stable at high temperatures up to 1300 degrees C.
    Trvalý link: http://hdl.handle.net/11104/0006158