Fatigue tests of nickel-based single-crystal superalloys with inclined film cooling holes (FCHs) at 1000°C were conducted to investigate the effects of crystal orientation and to quantify the fatigue performance of the high-temperature structures. Fractographic analysis and computations of stress concentrations revealed competitive failure mechanisms between mode I crack nucleation and fatigue crack growth in crystallographic plastic slip systems, whereas crack nucleation around inclined FCHs can be characterized by the known fatigue criteria derived for smooth specimens. A life prediction model based on the crystal slip mechanism and the theory of critical distance was introduced to predict the fatigue life of FCH structures and provided reasonable accuracy for different FCH specimens.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fatigue Assessment of Inclined Film Cooling Holes in Nickel-Based Single-Crystal Superalloy


    Beteiligte:
    Weng, Huanbo (Autor:in) / Luo, Cheng (Autor:in) / Yuan, Huang (Autor:in) / Gu, Yuanxing (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2024-07-12


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






    Low Cycle Fatigue of Single Crystal Nickel-based Superalloy DD6 at 1100℃

    ZHANG Shichao / LI Xudong / YU Huichen et al. | DOAJ | 2018

    Freier Zugriff

    Low Cycle Fatigue Behaviors of Single Crystal Nickel-based Superalloy at Temperatures of 600~760

    ZHANG Zhihua / YU Huichen / LI Ying et al. | DOAJ | 2018

    Freier Zugriff

    Single-crystal superalloy

    Online Contents | 1995