[P] P74~P87 Materials Chemistry

[P75] pH Estimation inside Corrosion Pits Using X-ray CT and Data Assimilation

○Kenshin Miyake¹, Takayuki Shiraiwa¹ (1. University of Tokyo)

Keywords:

Corrosion,X-ray CT,Data assimilation

To predict corrosion fatigue, estimating pit chemistry is crucial but difficult. We propose a data assimilation method using the Ensemble Kalman Filter to estimate unmeasurable pit pH by combining X-ray CT data of dual-phase steel with a cellular automaton model.