The rail/wheel contact comprises interactions of thermal and mechanical loadings which lead to microstructural changes in the wheel. These were investigated on a wheel from a regional train using metallographic examinations, X-ray diffraction for phase and residual stress analyses. The results show that the microstructural alterations, the carbon content and the residual stress distribution depend on the loading profile of the wheel. The formation of two different martensites (tetragonal and cubic martensite) on a wheel surface could be detected at different positions. The martensites are characterized by high hardness values, increased carbon contents in the lattice and an increased level of compressive residual stresses. Detailed structural analyses of the martensites which were formed under locally different loading and time conditions gave evidence for different structural evolutions.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Residual stresses and microstructure in the rail/ wheel contact zone of a worn railway wheel


    Additional title:

    Eigenspannungen und Mikrogefüge in der Schiene-Rad-Kontaktzone eines gebrauchten Eisenbahnrades


    Contributors:


    Publication date :

    2006


    Size :

    6 Seiten, 9 Bilder, 1 Tabelle, 10 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Evaluation of Contact Stresses in Railway Wheel When Rolling Through Rail Joint

    Evtukh, E. S. / Neklyudova, G. A. | Springer Verlag | 2019


    Measuring Wheel/Rail Contact Stresses using Ultrasound

    Marshall, M. B. / Lewis, R. / Dwyer-Joyce, R. S. et al. | British Library Conference Proceedings | 2004


    Geometry and compressive stresses in wheel/rail contact

    Kleiner, Otto / Schindler, Christian | IuD Bahn | 2012


    Thermal stresses and shakedown in wheel/rail contact

    Ertz, M. / Knothe, K. | Tema Archive | 2003


    Cracks around railway wheel flats exposed to rolling contact loads and residual stresses

    Wallentin, M. / Bjarnehed, H.L. / Lunden, R. | Tema Archive | 2003