A microstructural fatigue crack nucleation model is developed for cast irons with graphite inclusions of different shapes, based on Eshelby’s solution for ellipsoidal inclusions and the Tanaka-Mura-Wu model for fatigue crack nucleation. This model is used to analyze ductile cast iron with nodular graphite microstructure, gray cast iron with flake-like graphite microstructure, and compacted graphite iron with vermicular graphite microstructure. Excellent agreements are found between the model predictions and the experimental data or the Coffin-Manson-Basquin best-fit correlations. This has established an analytical microstructure-fatigue prediction approach, which saves the time and cost of fatigue design with regards to these materials.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Microstructure-Fatigue Relationships for Cast Irons


    Additional title:

    Sae Technical Papers


    Contributors:
    Wu, Xijia (author)

    Conference:

    WCX SAE World Congress Experience ; 2020



    Publication date :

    2020-04-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Austenitic cast irons

    Hurst, J.E. | Engineering Index Backfile | 1932


    Alloy cast-irons

    Engineering Index Backfile | 1941


    "Loded" cast irons

    Young, H.J. | Engineering Index Backfile | 1939


    Austempered baintic cast irons

    Cox,G.J. / GKN Sheepbridge Equipment,GB | Automotive engineering | 1982


    Microstructure and Wear Behavior of Austempered and as-cast Ausferritic Gray Cast Irons

    Vadiraj, Aravind / Kamaraj, M. | SAE Technical Papers | 2011