The fatigue life of austenitic stainless steel has recently been shown to undergo remarkable reduction with decrease in strain rate and increase in temperature in water. Either of these parameters as a factor of this reduction has been examined quantitatively and methods for predicting the fatigue life reduction factor in any given set of conditions have been proposed. All these methods are based primarily on fatigue data in simulated PWR water owing to the few data available in simulated BWR water. Recent Japanese fatigue data in simulated BWR water clearly indicated the effects of the environment on fatigue degradation to be milder than under actual PWR conditions. A new method for determining in BWR water was developed in the present study and a revised in PWR water is also proposed based on new data. These new models differ from those previously used primarily with regard to the manner in which strain amplitude is considered to affect in the environment.
A Proposal of Fatigue Life Correction Factor Fen for Austenitic Stainless Steels in LWR Water Environments
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division April 22, 2003; revision received June 2, 2003. Associate Editor: S. Y. Zamrik.
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Higuchi, M., Tsutsumi, K., Hirano, A., and Sakaguchi, K. (November 4, 2003). "A Proposal of Fatigue Life Correction Factor Fen for Austenitic Stainless Steels in LWR Water Environments ." ASME. J. Pressure Vessel Technol. November 2003; 125(4): 403–410. https://doi.org/10.1115/1.1613945
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