Abstract

Irregular configuration of the corroded surface is taken as spatial stochastic process and two-dimensional filtered Poisson process is newly developed as a numerical model of corrosion. In the present model any corroded surface is interpreted as being made by the superposition of pits. This enables us to characterize any general corrosion quantitatively, which has been hardly achieved. The availability of the proposed method is demonstrated through the analyses of two corroded specimens and discussions are give in the light of the above interpretation. Also the sensitivity study is exemplified making use of the flexibility of the model, which yields the basis of prediction of the development of corrosion.

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