The crystallite size and dislocation density in RCF (rolling contact fatigue) affected layers have been identified using X-ray Fourier analyses on serviced rails. The evaluation of the crystallite size and dislocation density is based on modified Williamson-Hall and Warren-Averbach models. This evaluation enables quantification of the microstructure evolution in the RCF layer with the increase of accumulated loading (in terms of MGT - Million Gross Tonnes) as well as the identification of the most deteriorated locations in the RCF layer. In summary, the surface layer experiences the highest deterioration in the evaluated cases.


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    Titel :

    X-ray Fourier Analysis on Rolling Contact Fatigue Layer Formed in Rail



    Erschienen in:

    Erscheinungsdatum :

    2015




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.85 Schienenverkehr




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