Abstract
This paper describes an investigation into the mechanisms influencing environmentally assisted enhancement of fatigue crack growth of 304L stainless steel in PWR primary water. Pre-cracked specimens were tested under loading conditions containing hold periods, either using a trapezoidal waveform, or periods of saw-tooth loading interspersed with long hold periods. Several post-test characterization methods were used to provide insight into the mechanisms influencing crack growth behavior. A correlation was observed between steel sulfur content and reduced environmental enhancement, which was more pronounced under trapezoidal loading than for saw-tooth loading following extended hold periods. Post-test examination linked enhanced crack growth with highly faceted fracture surfaces, whilst lower levels of enhancement showed a less faceted and more heavily oxidized appearance. The observations suggest that, whilst enhanced corrosion due to MnS dissolution from the steel is the cause of retarded crack growth rates, different retardation mechanisms appear to contribute at high and low stress ratios. This programme was sponsored by The Electric Power Research Institute (EPRI) and a full report describing the full programme of work is available as EPRI report#3002007973.
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References
D.R. Tice, K.M.S. Rigby, D.I. Swan, Corrosion fatigue crack growth of austenitic stainless steel in PWR primary coolant at low frequency, in Proceedings of Third International Conference on Fatigue of Reactor Components, Seville, Spain, Oct 2004
W.M. Evans, G.L. Wire, Results of high stress ratio and low stress intensity on fatigue crack growth rates for 304 stainless steel in 288 °C water, in Pressure Vessel & Piping Codes and Standards, ASME PVP, PVP, vol. 439, (2002), p. 1226
Y. Nomura, K. Sakaguchi, H. Kanasaki, S. Suzuki, Fatigue crack growth rate tests of austenitic stainless steels under high stress ratio and low frequency conditions in PWR environment, in Pressure Vessel & Piping Codes and Standards, ASME PVP 2006, PVP 2006-93224 (2006)
H.P. Seifert, S. Ritter, H.J. Leber, Corrosion fatigue crack growth behaviour of austenitic stainless steels under light water reactor conditions. Corros. Sci. 55, 61–75 (2012)
N. Platts, D.R. Tice, J.W. Stairmand, Influence of load ratio, rise time and waveform on the corrosion fatigue crack growth of austenitic stainless steel in a PWR primary coolant environment, in Proceedings of ASME-PVP 2007: ASME Pressure Vessels and Piping Division Conference St Antonio, Texas, July 2007, Paper PVP 2007-26755
G.L. Wire, W.M. Evans, W.J. Mills, Fatigue crack propagation tests on 304 stainless steel in high temperature water—accelerated cracking rates and transition to lower rates, in Pressure Vessel & Piping Codes and Standards, ASME PVP, PVP, vol. 480, (2004), p. 71
W.J. Mills, Accelerated and retarded corrosion fatigue crack growth rates for 304 stainless steel in an elevated temperature aqueous environment, in Proceedings 16th International Conf. on Environmental Degradation of Materials in Nuclear Power Systems, Asheville, NC, August 2011
ASME Boiler and Pressure Vessel Code, Section XI, Non Mandatory Appendix C (section C8410), ASME, New York
W.J. Mills, Critical review of fatigue crack growth rates for stainless steel in deaerated water parts 1 and 2, in Presentation to EPRI PWR Materials Reliability Programme Conference, Colorado Springs, CO, June 2010
E. West, T. Nolan, A. Lucente, D. Morton, N. Lewis, R. Morris J. Mullen, G. Newsome, Effect of sulfur on the SCC and corrosion fatigue performance of stainless steel, in Fontevraud 8—Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability, Avignon, France, 15–18 September 2014
D.R. Tice, N. Platts, K. Rigby, J. Stairmand, Influence of temperature and flow rate on the corrosion fatigue crack growth of austenitic stainless steel in a PWR primary coolant environment, In Proceedings 13th International Conference on Environmental Degradation of Materials in Nuclear Power Systems, Whistler, Canada, August 2007
N. Platts, D.R. Tice, J.W. Stairmand, Effect of flowrate on the environmentally enhanced fatigue crack propagation of austenitic stainless steels in a simulated PWR primary coolant environment, in Proceedings 14th International Conference. on Environmental Degradation of Materials in Nuclear Power Systems—Water Reactors, Virginia Beach, VA, August 2009
N. Platts, K. Rigby, D.R. Tice, D.I. Swan, Effect of loading waveform and spectrum loading on the fatigue crack growth rate in simulated light water reactor environments, in Proceedings. ASME 2016 Pressure Vessels and Piping Conference Vancouver, Canada, July 2016, ASME PVP2016–63148
D.R. Tice, N. Platts, A. Panteli, J.W. Stairmand, Influence of steel sulfur content on corrosion fatigue crack growth of types 304 and 316 stainless steels in high temperature water, in Proceedings 17th International Conference on Environmental Degradation of Materials in Nuclear Power Systems, Ottawa, Canada, August 2015
ASME Code Case N-809, Reference fatigue crack growth rate curves for austenitic stainless steels in pressurized water reactor environments, ASME Section XI BPVC, 23 June 2015
R.C. Cipolla, W.H. Bamford, Technical basis for code case n-809 on reference fatigue crack growth curves for austenitic stainless steels in pressurized water reactor environments, in Proceedings. ASME 2015 Pressure Vessels and Piping Conference, Vancouver, Canada, July 2016 ASME PVP2015–45884
A. Roth, B. Devrient, Environmental effects on fatigue—possible reasons for the apparent mismatch between laboratory test results and operational experience, in Fontevraud 7—Contribution of Materials Investigations and Operating Experience to LWRs’ Safety, Performance and Reliability, Avignon, France, 26–30 September 2010, Paper A031–T05
A. Roth, Private Communication, 2015
N. Platts, D.R. Tice, L. McIntyre, K.J. Mottershead, F. Scenini, Effects of material compositional on corrosion fatigue crack growth of austenitic stainless steels in high temperature water, in Proceedings 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems (Colorado Springs, CO, August 2011)
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Medway, S.L., Tice, D.R., Platts, N., Griffiths, A., Ilevbare, G., Pathania, R. (2019). Mechanistic Understanding of Environmentally Assisted Fatigue Crack Growth of Austenitic Stainless Steels in PWR Environments. In: Jackson, J., Paraventi, D., Wright, M. (eds) Proceedings of the 18th International Conference on Environmental Degradation of Materials in Nuclear Power Systems – Water Reactors. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-04639-2_61
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