EUROCORR Plenary Talk: Towards a Virtual Corrosion Lab

Recording of the plenary talk at EUROCORR2024
Title: Towards a Virtual Corrosion Lab: A new generation of mechanistic, multi-physics models for pitting and stress corrosion cracking
Author: Prof Emilio Martinez-Paneda. University of Oxford
Short bio: (taken from eurocorr2024.o...)
Prof Emilio Martinez-Pañeda is an Associate Professor at the University of Oxford. Prior to joining Oxford, he was a Reader (Associate Professor) at Imperial College London, where he led an interdisciplinary research group from 2019 to 2023 (2019: Lecturer, 2021: Senior Lecturer, 2023: Reader). Before that, he was an 1851 Research Fellow at the University of Cambridge. Prof Emilio Martinez-Paneda’s research spans a wide range of challenges lying at the interface between mechanics and other disciplines such as biology, geology, chemistry and materials science, being particularly known for his pioneering contributions to the area of environmentally assisted cracking. Prof Emilio Martinez-Paneda has been the PI on over 5M GBP of funding in the past five years (ERC Starting Grant, UKRI Future Leaders Fellowship) and his work has been recognized through multiple awards, including the 2021 UK Young Engineer of the Year (Royal Academy of Engineering), the 2022 Imperial College President’s Medal for Excellence in Research, and the 2021 Gustavo Colonnetti Medal (RILEM).
Abstract:
Corrosion has long been considered too complex to be predicted with computer models. However, increasing computer power and new multi-physics, phase field-based corrosion models enable the development of electro-chemo-mechanical phase field models that explicitly resolve the meso-scale phenomena involved and can therefore deliver predictions based on physical parameters and with minimal assumptions [1]. Phase field modelling has revolutionised the modelling of many interfacial problems, from solidification to fracture mechanics, and this paradigm can also be used to predict the evolution of the corrosion front (electrolyte-metal interface) [2]. Recent developments in this emerging field of phase field corrosion have shown that this new class of models can capture key phenomena such as film rupture and repassivation, the transition from activation- to diffusion-controlled corrosion, interactions with mechanical fields, microstructural and electrochemical effects, intergranular corrosion, material biodegradation, and the interplay with other environmentally-assisted damage phenomena such as hydrogen embrittlement [3-5]. A very good agreement with experiments is observed.
References:
[1] E. Martínez-Pañeda. Phase-field simulations opening new horizons in corrosion research. MRS Bulletin 49, 603-612 (2024)
[2] C. Cui, R. Ma, E. Martínez-Pañeda (2021). A phase field formulation for dissolution-driven stress corrosion cracking. Journal of the Mechanics and Physics of Solids 147, 104254
[3] C. Cui, R. Ma, E. Martínez-Pañeda (2022). A generalised, multi-phase-field theory for dissolution-driven stress corrosion cracking and hydrogen embrittlement. Journal of the Mechanics and Physics of Solids 166, 104951
[4] C. Cui, R. Ma, E. Martínez-Pañeda. Electro-chemo-mechanical phase field modeling of localized corrosion: theory and COMSOL implementation. Engineering with Computers 39, 3877-3894 (2023)
[5] M. Makuch, S. Kovacevic, M.R. Wenman, E. Martínez-Pañeda. A microstructure-sensitive electro-chemo-mechanical phase-field model of pitting and stress corrosion cracking. Corrosion Science 232, 112031 (2024)

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