Corrosion Chemistry: Faraday Discussion

13 - 15 April 2015, London, United Kingdom

Over the last decade or so, there has been immense progress in the development of tools, both experimental and theoretical, for probing the solid/fluid interface at the nanoscale. These advances open the way towards mechanistic understanding, and potentially prediction, of chemical processes occurring at this interface. Amongst the fields beginning to benefit from such effort is corrosion science, which is primarily concerned with degradation of metallic materials immersed in either liquid or gaseous environments, and control thereof. Corrosion science does not always attract the plaudits of other more fashionable subjects, but is nevertheless of huge strategic importance. This statement is increasingly true as we move towards a world where every atom counts, e.g. in maintaining the performance of nano-devices, as well for ensuring sustainability through optimum use of natural resources.


Solid/Fluid Interface
In this session, studies concerned with nanoscale elucidation of the structure and fundamental chemical processes (e.g. ion adsorption) at solid/fluid interfaces will be discussed. Particular attention will focus on the solid/aqueous solution interface, as it is of central importance to corrosion. Contributions will cover experimental work, with particular emphasis on in situ studies using state-of-the-art probes, and theoretical modeling.

Corrosion Scales and Passive Films
Substrate adhered corrosion scales and passive films, which can both significantly affect corrosion (e.g. a passive film can reduce corrosion to a negligible rate), will be the topics of discussion here. Experimental/theoretical studies of both engineering and model (e.g. single crystal) substrates will be presented. Relationships between the composition-structure-chemistry-corrosion resistance of the scales/films will be addressed, together with insight into processes governing their initiation and growth, including the impact of environmental conditions

Localised Corrosion
Spatially confined corrosion phenomena (e.g. pitting), which can lead to rapid failure of otherwise corrosion resistant substrates, will be of concern in this session. Studies aiming to understand at the nanoscale the combined influences of substrate microstructure/geometry, mechanical distortion, and fluid chemistry on local corrosion initiation/progression will be presented. Modeling of these processes will also feature, as prediction of their occurrence is of huge technological concern

Corrosion Control
To complement the above sessions, this final session will address nanoscale understanding of corrosion control methods. In particular, it will be concerned with approaches where chemistry plays a key role, namely coatings, paints, and corrosion inhibitors. Topics of discussion will centre on those critical to gain mechanistic insight into corrosion resistance performance, including substrate bonding, structure/morphology, interfacial transport, and degradation mechanisms.

The Faraday Discussion Poster Prize, sponsored by Cogent, was won by 2 posters:
Su-Ting Cheng, Ab intio study of the corrosion of Mg and Mg-Zn alloys
Marco Facciotti, How can chemistry help Nation Grid to keep our lights on? A surfact chemistry investigation on the anticorrosion additive Irgamet (TM) 39

The Corrosion Chemistry Faraday Discussion volume is now available online. Please follow the 'More Information' link to access this.
Sponsorship & supporting organisations
The Royal Society of Chemistry

The Royal Society of Chemistry, Burlington House, Piccadilly, London, W1J 0BA, United Kingdom

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