Počet záznamů: 1

Fatigue properties of high Nb TiAl alloy

  1. 1.
    0353880 - UFM-A 2011 RIV GB eng J - Článek v odborném periodiku
    Kruml, Tomáš - Dlouhý, Antonín - Petrenec, Martin - Obrtlík, Karel - Polák, Jaroslav
    Fatigue properties of high Nb TiAl alloy.
    Journal of Physics: Conference Series. Roč. 240, - (2010), 012057 ISSN 1742-6588.
    [ICSMA-15 (15th International Conference on the Strength of Materials). Dresden, 16.08.2009-21.08.2009]
    Grant CEP: GA ČR GA106/07/0762; GA ČR GA106/08/1631
    Výzkumný záměr: CEZ:AV0Z20410507
    Klíčová slova: TiAl * low cycle fatigue * microstructure
    Kód oboru RIV: JL - Únava materiálu a lomová mechanika

    Fatigue properties of the new generation of TiAl alloys with high Nb content are studied. Comparison with the previous alloy with 2at% Nb shows that the new alloy resists better to cyclic deformation at high temperatures. The microstructural observation proved that at 750 °C, the easiest deformation mode is the glide of ordinary dislocations followed by superdislocation glide and twinning. Nevertheless, all three modes seem to be active.
    Trvalý link: http://hdl.handle.net/11104/0193003