Use of X-rays for analysis of biodegradation processes

Citation
F. Feugeas et al., Use of X-rays for analysis of biodegradation processes, J PHYS IV, 10(P10), 2000, pp. 521-530
Citations number
13
Language
FRANCESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
JOURNAL DE PHYSIQUE IV
ISSN journal
1155-4339 → ACNP
Volume
10
Issue
P10
Year of publication
2000
Pages
521 - 530
Database
ISI
SICI code
1155-4339(200009)10:P10<521:UOXFAO>2.0.ZU;2-7
Abstract
The microbially influenced corrosion (M.I.C.) is linked to bacterial presen ce. This type of corrosion can affect any industrial area in contact with m icroorganisms. Bacteria are able to form films on the majority of elements immerged in aquatic environment. Those biofilms can induce localized corros ion on metallic surfaces, the biofilm formation is the obligatory first ste p of the biocorrosion The study of biofilms composition formed on courant s teels immerged in a natural fresh water has been made with electron microsc opic techniques coupled with different X-ray analysis. The different result s permit us to propose schemas of biofilms formed on a carbon steel (38CrS2 ) and three stainless steels (304, 304 L, 316L). The relations between iden tified products near bacteria and metabolic activity of the microorganisms have been established in order to evidenced the potential corrosive action of living organisms in the biofilm.