Fatigue behaviour of 316 NG stainless steel in EPR primary circuit conditions

Jussi Solin, Päivi Karjalainen-Roikonen, Esko Arilahti, Pekka Moilanen

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

Strain controlled constant amplitude and variable amplitude fatigue tests were performed for 316 NG stainless steel in PWR water 320 C. The environment reduced fatigue life as predicted. Variable amplitude test results indicate a further reduction in life by a factor of 5, which is greater than expected. Variable amplitude straining in EPR environment resulted to specimen failure before the fatigue usage factor according to the ASME III design curve reached unity. In other words, the ASME III design curve was conservative for constant amplitude, but non-conservative for variable amplitude straining in environment. Critical tests to confirm or replace this tentative observation are recommended.
Original languageEnglish
Title of host publicationSAFIR, The Finnish Research Programme on Nuclear Power Plant Safety 2003 - 2006
Subtitle of host publicationInterim Report
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages76-88
ISBN (Electronic)951-38-6516-9
ISBN (Print)951-38-6515-0
Publication statusPublished - 2004
MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

Publication series

SeriesVTT Tiedotteita - Research Notes
Number2272
ISSN1235-0605

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  • Cite this

    Solin, J., Karjalainen-Roikonen, P., Arilahti, E., & Moilanen, P. (2004). Fatigue behaviour of 316 NG stainless steel in EPR primary circuit conditions. In SAFIR, The Finnish Research Programme on Nuclear Power Plant Safety 2003 - 2006: Interim Report (pp. 76-88). VTT Technical Research Centre of Finland. VTT Tiedotteita - Research Notes, No. 2272 http://www.vtt.fi/inf/pdf/tiedotteet/2004/T2272.pdf