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Research Papers: Materials and Fabrication

Effects of Boiling Water Reactor Medium on the Fatigue Life of Austenitic Stainless Steels

[+] Author and Article Information
Paul Wilhelm

Primary Components and Calculations,
AREVA GmbH,
Henri-Dunant Street 50,
Erlangen 91058, Germany
e-mail: paul.wilhelm@areva.com

Paul Steinmann

Department of Mechanical Engineering,
University of Erlangen-Nuremberg,
Egerland Street 5,
Erlangen 91058, Germany
e-mail: paul.steinmann@ltm.uni-erlangen.de

Jürgen Rudolph

Primary Components and Calculations,
AREVA GmbH,
Henri-Dunant Street 50,
Erlangen 91058, Germany
e-mail: rudolph.juergen@areva.com

1Corresponding author.

Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received August 19, 2015; final manuscript received January 20, 2016; published online February 22, 2016. Assoc. Editor: Haofeng Chen.

J. Pressure Vessel Technol 138(3), 031406 (Feb 22, 2016) (6 pages) Paper No: PVT-15-1189; doi: 10.1115/1.4032651 History: Received August 19, 2015; Revised January 20, 2016

A statistical model for austenitic stainless steels (SSs) for predicting the effect of boiling water reactor (BWR) environments on fatigue life for a range of temperatures and strain rates is developed based on the analysis of available material data from Europe, U.S., and Japan. Only fatigue data from polished specimens of wrought material tested under strain control were considered. Hollow specimens were not treated in the final calculations. The fatigue-life correction factors were defined as the ratio of life in water at 240 °C (464 °F) (reference conditions) to that in water at service conditions. The model is recommended for predicting fatigue lives that are 102–104 cycles.

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References

Figures

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Fig. 1

Reference curve for BWR medium environment

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Fig. 2

Dependence of tensile strain rate on fatigue life

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Fig. 3

PWR model: effect of temperature

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Fig. 4

Experimental and predicted values of fatigue lives

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Fig. 5

Predicted strain amplitude versus fatigue life

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Fig. 6

Comparison of prediction models: effect of tensile strain rate

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Fig. 7

Comparison of prediction models: effect of temperature

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