SYMPOSIA PAPER Published: 01 October 2012
STP104536

Gigacycle Fatigue: A New Tool for Exploring Bearing Steel

Source

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.

Author Information

Bathias, Claude
U-Paris Ouest, LEME, Ville d'Avray, FR
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Details
Developed by Committee: A01
Pages: 181–202
DOI: 10.1520/STP104536
ISBN-EB: 978-0-8031-7567-9
ISBN-13: 978-0-8031-7534-1