STP644: Fatigue Crack Propagation in Rail Steels

    Feddersen, CE
    Research scientist and research leader, Structural Materials Section, Battelle Columbus Laboratories, Columbus, Ohio

    Broek, D
    Research scientist and research leader, Structural Materials Section, Battelle Columbus Laboratories, Columbus, Ohio

    Pages: 16    Published: Jan 1978


    Abstract

    Baseline fatigue crack growth data at R = 0 and mechanical property data have been generated on 66 different rail materials which are in service on U.S. railroads. These data are evaluated, along with metallurgical variables such as chemical composition and microstructure, in an attempt to develop a correlation of mechanical and metallurgical factors affecting crack behavior in rail steels. The ultimate objective of this effort is the development of a rail failure model to enable the determination of safe inspection intervals, through prediction of fatigue crack growth in rail under service loading.

    Keywords:

    steels, railroad tracks, fatigue (materials), cracks


    Paper ID: STP27119S

    Committee/Subcommittee: A01.01

    DOI: 10.1520/STP27119S


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