KorrFu

»Investigation of the interdependencies of corrosive loads«

Corrosion effects can significantly shorten the service life and useful life of corrosion-prone structures and thus greatly reduce the sustainability of an infrastructure over its life cycle. To date, the assessment of structures has been largely phenomenological and does not allow a scientifically sound forecast of the remaining service life and the optimum maintenance and replacement times based on measurements and models. For this purpose, it is necessary to understand corrosion, its development and spread, and its effects on the material and construction level, and to transfer these into models. If the transfer to models is successful, a service life forecast can be made. On the other hand, the dependence of corrosion on individual environmental influences or material parameters should be quantifiable. Only through a deeper understanding of the impact and effect of the impact on the levels of material degradation and overall structural stability can the sustainability of the structures be effectively increased with optimized protective measures.

Img. 1: Fe, Al, Zn and Cu coupons for the determination of atmospheric corrosivity according to ISO 9223.
Img. 2: Section through a ferritic steel after corrosive stress. The oxide structure can be determined using EDX/XRD.