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My primary research aim is to solve various industrial corrosion and environmental contamination problems. A recent focus has been the study of waste containers and waste forms for the disposal of high level nuclear wastes. The solution to such problems requires a combination of experimental and modelling approaches. Our experimental approach involves the application of a wide range of electrochemical techniques often under hostile conditions, such as high temperatures in the presence of aggressive environments. These methods are supplemented by various surface and near-surface analytical techniques, such as X-ray photoelectron (XPS) and Auger (AES) spectroscopies, scanning electron microscopy (SEM) and neutron reflectometry (NR). A judicious mixture of fundamental and applied experimentation is inevitably required. The nature of models varies from detailed deterministic process models to statistical/probabilistic and environmental performance assessment models.
Our studies have encompassed the range of detailed reactions (electrochemical, chemical, metallurgical, transport) which are embodied in complex localized corrosion processes such as crevice corrosion, pitting and hydrogen-induced cracking. The initiation of localized corrosion involves stochastic events determined by the combination of the exposure environment, the metallurgical properties of the specific material and the chemical and physical properties of the oxide films on the material's surface. The extent of corrosion damage subsequently sustained by the material can be described by a damage function, i.e., the relationship between the depth of corrosion penetration and the time of exposure to the environment. The cessation of localized corrosion involves repassivation events associated with fluctuations in local chemistry which allow the regrowth of protective oxides on the metal surface.
Our studies have encompassed the range of detailed reactions (electrochemical, chemical, metallurgical, transport) which are embodied in complex localized corrosion processes such as crevice corrosion, pitting and hydrogen-induced cracking. The initiation of localized corrosion involves stochastic events determined by the combination of the exposure environment, the metallurgical properties of the specific material and the chemical and physical properties of the oxide films on the material's surface. The extent of corrosion damage subsequently sustained by the material can be described by a damage function, i.e., the relationship between the depth of corrosion penetration and the time of exposure to the environment. The cessation of localized corrosion involves repassivation events associated with fluctuations in local chemistry which allow the regrowth of protective oxides on the metal surface.
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Xuejie Li,Fraser Filice,Jeffrey Henderson,Mehran Behazin,Sridhar Ramamurthy,Ivan Barker, Sebastian Skaanvik, Reza Moshrefi, Samantha Gateman,David Shoesmith, James Noël
crossref(2024)
Research Square (Research Square) (2023)
Corrosion Science (2023): 111314-111314
Sina Matin, Adam Morgan,Arezoo Tahmasebi, Dmitrij Zadidulin,Mehran Behazin,Matt Davison,David W. Shoesmith,James J. Noel
Elham Salehi Alaei, Mingke Guo,Jian Chen,Mehran Behazin, Erik Bergendal,Christina Lilja,David W. Shoesmith,James J. Noël
Materials and Corrosionno. 11-12 (2023): 1690-1706
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Frontiers in Materials (2022)
Lindsay Braithwaite, Katarina Albrechtas,Dmitrij Zagidulin,Mehran Behazin,David Shoesmith,James J. Noel
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