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Title: Effects of LWR coolant environments on fatigue design curves of carbon and low-alloy steels

Abstract

The ASME Boiler and Pressure Vessel Code provides rules for the construction of nuclear power plant components. Figures I-9.1 through I-9.6 of Appendix I to Section III of the code specify fatigue design curves for structural materials. While effects of reactor coolant environments are not explicitly addressed by the design curves, test data indicate that the Code fatigue curves may not always be adequate in coolant environments. This report summarizes work performed by Argonne National Laboratory on fatigue of carbon and low-alloy steels in light water reactor (LWR) environments. The existing fatigue S-N data have been evaluated to establish the effects of various material and loading variables such as steel type, dissolved oxygen level, strain range, strain rate, temperature, orientation, and sulfur content on the fatigue life of these steels. Statistical models have been developed for estimating the fatigue S-N curves as a function of material, loading, and environmental variables. The results have been used to estimate the probability of fatigue cracking of reactor components. The different methods for incorporating the effects of LWR coolant environments on the ASME Code fatigue design curves are presented.

Authors:
;  [1]
  1. Argonne National Lab., IL (United States)
Publication Date:
Research Org.:
US Nuclear Regulatory Commission (NRC), Washington, DC (United States). Div. of Engineering Technology; Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Nuclear Regulatory Commission, Washington, DC (United States)
OSTI Identifier:
573404
Report Number(s):
NUREG/CR-6583; ANL-97/18
ON: TI98002917; TRN: 98:009372
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1998
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; CARBON STEELS; LOW ALLOY STEELS; FATIGUE; BWR TYPE REACTORS; PWR TYPE REACTORS; REACTOR MATERIALS; COOLANTS; CRACK PROPAGATION; WATER CHEMISTRY; CORROSIVE EFFECTS; CORROSION FATIGUE; EXPERIMENTAL DATA

Citation Formats

Chopra, O K, and Shack, W J. Effects of LWR coolant environments on fatigue design curves of carbon and low-alloy steels. United States: N. p., 1998. Web. doi:10.2172/573404.
Chopra, O K, & Shack, W J. Effects of LWR coolant environments on fatigue design curves of carbon and low-alloy steels. United States. https://doi.org/10.2172/573404
Chopra, O K, and Shack, W J. 1998. "Effects of LWR coolant environments on fatigue design curves of carbon and low-alloy steels". United States. https://doi.org/10.2172/573404. https://www.osti.gov/servlets/purl/573404.
@article{osti_573404,
title = {Effects of LWR coolant environments on fatigue design curves of carbon and low-alloy steels},
author = {Chopra, O K and Shack, W J},
abstractNote = {The ASME Boiler and Pressure Vessel Code provides rules for the construction of nuclear power plant components. Figures I-9.1 through I-9.6 of Appendix I to Section III of the code specify fatigue design curves for structural materials. While effects of reactor coolant environments are not explicitly addressed by the design curves, test data indicate that the Code fatigue curves may not always be adequate in coolant environments. This report summarizes work performed by Argonne National Laboratory on fatigue of carbon and low-alloy steels in light water reactor (LWR) environments. The existing fatigue S-N data have been evaluated to establish the effects of various material and loading variables such as steel type, dissolved oxygen level, strain range, strain rate, temperature, orientation, and sulfur content on the fatigue life of these steels. Statistical models have been developed for estimating the fatigue S-N curves as a function of material, loading, and environmental variables. The results have been used to estimate the probability of fatigue cracking of reactor components. The different methods for incorporating the effects of LWR coolant environments on the ASME Code fatigue design curves are presented.},
doi = {10.2172/573404},
url = {https://www.osti.gov/biblio/573404}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 1998},
month = {Sun Mar 01 00:00:00 EST 1998}
}