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.
|Journal||International Journal of Pressure Vessels and Piping|
|Publication status||Published - 1993|
|MoE publication type||A1 Journal article-refereed|