Strain-induced corrosion cracking of low-alloy steels in LWR systems — case histories and identification of conditions leading to susceptibility☆

Effect of hydrogen and low temperature on fatigue crack growth of pipeline steels

Role of TiN inclusion on corrosion fatigue behavior of Alloy 690 steam generator tubes in borated and lithiated high temperature water

Effect of MnS inclusion dissolution on carbon steel stress corrosion cracking in fuel-grade ethanol

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.

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Seppo Salonen

Papers

On the mechanisms of environment sensitive cyclic crack growth of nuclear reactor pressure vessel steels

The effect of inclusions on the environmentally accelerated cyclic crack growth of reactor pressure vessel in simulated LWR environments

Autoclave facility for corrosion fatigue and stress corrosion testing in high temperature high pressure water