The correlation of IGSCC propagation with the power plant transient history

Pertti Aaltonen, Kari Saarinen, Kaisa Simola

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

The purpose of this study was to find out the possible correlation between the crack propagation and the shut-downs and start-ups of the nuclear power plant. These transients can promote intergranular stress corrosion cracking (IGSCC) through stress variations and changes in water chemistry. This work was conducted by studying cracks found from the AISI 304 shut-down cooling and clean-up pipeline. The appearance of observed cracking paths were compared to the transient history of the plant and the crack growth rates were evaluated based on these results. Principles of probabilistic modeling of the IGSCC growth in operational conditions will also be presented and simple examples of possible applications of the model related to existing data are given.

Original languageEnglish
Pages (from-to)149 - 162
Number of pages14
JournalInternational Journal of Pressure Vessels and Piping
Volume55
Issue number1
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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