Corrosions induites par les micro-organismes en milieu marin

Études expérimentales. Approche « in-situ » ou en laboratoire ?

¹ IEREMER, Centre de Brest
² CNRS LP4601, Station Biologique, Roscoff

Abstract

In contrast to the situation of a few years ago, the phenomenon of Microbiologic ally Induced Corrosion (MIC) is now generally accepted as being one of a number of mechanisms whereby corrosion of alloys in natural environments can occur. Experiments conducted in the laboratories with sterile or artificial medium inoculated with bacterial mono or co-cultures can lead to a better knowledge of the various mechanisms involved in MIC. However, the extrapolation of results obtained in such conditions to the natural environment is questionnable due to the complexity of these environments and the number of biological, physico-chemical and hydrodynamical parameters involved in material degradation.