Fatigue crack growth behavior was obtained for the SAEFDE Committee's round-robin A356-T6 cast aluminum alloy program with crack growth rates between 10−11 and 10−6 m/cycle for R-ratios equal to 0.1 and 0.5. Three different mold temperatures resulted in secondary dendrite arm spacings (DAS) that varied from approximately 80 to 90 µm, resulting in only coarse microstructure. Threshold levels, ΔKth, and the Paris exponent, m, were approximately twice the values usually found for wrought aluminum alloys. The influence of R-ratio was quite pronounced and crack closure, as measured with a crack mouth COD gage, did not eliminate all threshold and near-threshold R-ratio differences. Roughness-induced crack closure appeared to be more important than plasticity-induced closure.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Fatigue Crack Growth of A356-T6 Cast Aluminum Alloy


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Wigant, C. C. (Autor:in) / Stephens, R. I. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1988



    Erscheinungsdatum :

    1988-08-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Low cycle fatigue of A356-T6 cast aluminum alloy

    Wigant,C.C. / Stephens,R.I. / Univ.of Iowa,US | Kraftfahrwesen | 1987


    Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy

    Wigant, C. C. / Stephens, R. I. | SAE Technical Papers | 1987


    Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy Wheels

    Mahoney, B. J. / Fossman, R. G. / Stephens, R. I. | SAE Technical Papers | 1988


    A SWT Fatigue Mean Stress Model for A356-T6 Cast Aluminum Alloy

    Mahoney, B. J. / Lingenfelser, D. J. / Berns, H. D. et al. | SAE Technical Papers | 1988


    Fatigue and Fracture Toughness of Water-Chilled A356-T6 Cast Aluminum Alloy

    Mahoney, B. J. / Stephens, R. I. | SAE Technical Papers | 1988