Progress and Opportunities in Computational Modeling of Localized Corrosion

Corrosion can lead to mechanical damage near the material surface and reduce the material strength. It is essential to understand and simulate corrosion damage evolution for predicting the residual service life of engineering structure, reliability analysis, and corrosion-resistant design of materials. Several major novel corrosion simulation methods in the past ten years are mainly introduced: cellular automata method, finite element method, phase field model and peridynamics model. The computational modeling of localized corrosion is discussed and the advantages and disadvantages are compared. Finally, some difficulties in practical engineering applications such as dynamic interface tracking, multi-scale and multi-physical field corrosion simulation, and standardization of corrosion simulation are proposed, and the future investigation direction is prospected. With the rapid development of software science and computer technology, the operation speed and accuracy of numerical simulation will be greatly improved. The application advantages of numerical simulation in the field of corrosion will be more prominent.