Estimation of the intergranular corrosion rate of stainless steel using cellular automata calculation considering stochastic process

Yamamoto, Masahiro*; Igarashi, Takahiro

Corrosion Modelling with Cellular Automata; European Federation of Corrosion Publications, Number 71, p.131 - 153, 2024/03

https://doi.org/10.1016/C2022-0-02639-8

In order to elucidate corrosion phenomena in spent fuel reprocessing plant, experimental corrosion tests and computer simulations were carried out. From experimental results, variation of intergranular corrosion rate were caused by following; (i) surface corrosion, (ii) increase of corrosion rate due to a part of grains dropping out, (iii) high corrosion rate due to continuous of dropping out of grains. Intergranular corrosion rates obtained from the simulation using the developed intergranular corrosion model were relatively good agreement with those from the experimental data.