Matériaux & Techniques
Volume 78, Number 12, 1990
|Page(s)||25 - 33|
|Published online||13 April 2017|
Prévention de la biocorrosion des aciers inoxydables par modification de la composition chimique
1 Division « matériaux », dépt. G. M., Université de Compiègne
2 Ifremer, centre de Brest, Département Environnement Profond
By using electrochemical measurements and bacteria counting, we have verified that the added elements in an AISI 316L stainless steel, as poison allowing elements for the bacteria, like copper or arsenic, change the electrochemical properties versus the time, and modifie the structure of the bacterial population on the surface. Comparisons of the obtained results in synthetic sea water, sterilized or inoculated, and in natural sea water have permitted to observe very great differences versus the added elements. The use of sterilized natural sea water and then inoculated, gives results which permit to show the specific role of the aerobic and the anaerobic bacteria.
© SIRPE 1990
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