Abstract Split-sleeve cold expansion processing was employed on the 2024-T3 aluminum alloy plate. Fatigue lives were compared according different expansion, and then the relationship of fatigue life and expansion was analyzed. Residual stresses were measured with different expansion, and the fatigue fractograph was analyzed by SEM. The results show that the split-sleeve cold expansion can obtain longer life compared with the non strengthened hole. The maximum fatigue life increased to 12 times with 6% expansion. When over 6% expansion, fatigue life began to decrease. The split-sleeve cold expansion can form beneficial residual compressive stress, and deferred the fatigue crack initiation. The fatigue fractograph shows quasi-cleavage fracture.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of Strengthened Hole on the Fatigue Life of 2024-T3 Aluminum Alloy


    Beteiligte:
    Huang, Hong (Autor:in) / Zhao, Qingyun (Autor:in) / Liu, Fenglei (Autor:in)


    Erscheinungsdatum :

    2019-07-03


    Format / Umfang :

    6 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Influence of hole cold expansion on fatigue resistance of 2024 aluminum alloy

    WANG Lianqing / BIAN Jiang / ZHANG Han et al. | DOAJ | 2020

    Freier Zugriff

    Fatigue Behaviors of 2024 Aluminum Alloy under Aviation Load Spectrum

    CHEN Yajun / WANG Ailun / WANG Fusheng et al. | DOAJ | 2016

    Freier Zugriff


    Aluminum Alloy 2024, Plate and Sheet

    SAE Technical Papers | 2015