3. Characterization techniques
As we have just seen, the corrosion systems that develop on archaeological ferrous objects, even if they are made up of phases of the same nature as the systems formed over shorter times, are different from the latter, particularly in terms of the thickness of the layers of corrosion products. These great thicknesses mean that we need to know how these layers control corrosion mechanisms and kinetics, and whether these are the same factors as those at shorter times. Characterizing the composition, structure and texture of these layers (linked to transport phenomena, local reactivity, phase conductivity, etc.) is therefore of the utmost importance. To achieve this, a set of complementary techniques is required, enabling us to understand the corrosion system from the nanometric to the micrometric scale.
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Characterization techniques
Long-term corrosion facies
Bibliography
Websites
"Les liaisons tumultueuses de la rouille et du béton, des cathédrales aux centrales nucléaires", lecture by Valérie L'Hostis, Christophe Gallé, Alain Millard, researchers at the Direction de l'énergie nucléaire and Philippe Dillmann, researcher at the Direction des sciences de la matière, center CEA de Saclay :
Events
EURROCORR Congress. Annual. European Congress on Corrosion. A session dedicated to heritage objects
Norms and standards (non-exhaustive list)
- Corrosion of metals and alloys – Key terms and definitions - ISO 8044 - 1999
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