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6. Corrosion rate estimates
As a complement to the study of mechanisms, it is extremely interesting, in the context of predicting corrosion behavior, to evaluate the metal loss rates of archaeological objects as a function of their age and burial conditions. The main difficulty here lies in the fact that the exact initial dimensions of the archaeological object are unknown. Three different approaches can therefore be applied:
an empirical approach, based on the approximate measurement of the thickness of corrosion products from a very large number of samples;
a more refined analytical approach based on the measurement of local iron content;
electrochemical techniques, in particular chronoamperometry.
Each of these methods has its own intrinsic limitations:
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Corrosion rate estimates
Conclusion
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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