STP1548

    Gigacycle Fatigue: A New Tool for Exploring Bearing Steel

    Published: Oct 2012


      Format Pages Price  
    PDF Version (9.2M) 22 $25   ADD TO CART
    Complete Source PDF (194M) 22 $118   ADD TO CART


    Abstract

    This paper is devoted to a complimentary view of rolling contact fatigue testing, to have a better prediction of bearing-steel fatigue strength in the gigacycle regime. From a practical point of view, the bearing steels are loaded up to the very high-cycle fatigue regime, in service, far away from the Wohler regime, which is the standard reference. In spite of a possible frequency effect, a procedure based on ultrasonic fatigue is discussed to open some ways of investigation, in the range of 109 cycles: accelerated fatigue testing, thermal dissipation, fish-eye formation, inclusion effect, short-crack propagation, and stability of the microstructure.

    Keywords:

    gigacycle fatigue, bearing steels, ultrasonic fatigue


    Author Information:

    Bathias, Claude
    Emeritus Professor, U-Paris Ouest, LEME, Ville d'Avray,


    Paper ID: STP104536

    Committee/Subcommittee: A01.28

    DOI: 10.1520/STP104536


    CrossRef ASTM International is a member of CrossRef.