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SCC of Austenitic Stainless Steels Under Off-Normal Water Chemistry and Surface Conditions

Part I: Surface Conditions and Baseline Tests in Nominal PWR Primary Environment
  • Nicolas HuinEmail author
  • Olivier Calonne
  • Matthias Herbst
  • Renate Kilian
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The field experience of austenitic stainless steels in PWR primary circuits has been generally outstanding. However, a review made by EPRI indicates that significant SCC cases occurred in low flow or stagnant zones where the primary water was probably contaminated by trapped oxygen and/or radiolysis products. In addition, the deleterious effect of off normal surface conditions in the SCC susceptibility is not yet clearly understood. A recent program was launched to get insights regarding the potential deleterious effect of off normal surface and chemistry environments on the SCC susceptibility of cold worked stainless steels. Since the presence of surface treatments due to the various steps of component manufacturing or repairing is sometimes unavoidable, a wide range of experimental techniques is deployed to reproduce some of the various off normal surface conditions. This paper summarizes the initial characterizations as well as the baseline SCC tests in PWR primary environment.

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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Nicolas Huin
    • 1
    Email author
  • Olivier Calonne
    • 1
  • Matthias Herbst
    • 2
  • Renate Kilian
    • 2
  1. 1.AREVA NP Technical CenterLe Creusot CedexFrance
  2. 2.AREVA GmbH Technical CenterErlangenGermany

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