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Titolo:
Structural and biochemical study of biofilms on steels in potable water with electronic microprobe techniques
Autore:
Feugeas, F; Ehret, G; Cornet, A;
Indirizzi:
ENSAIS, Lab Ingn Surfaces Strasbourg, F-67084 Strasbourg, France ENSAIS Strasbourg France F-67084 Strasbourg, F-67084 Strasbourg, France IPCMS, F-67037 Strasbourg, France IPCMS Strasbourg France F-67037IPCMS, F-67037 Strasbourg, France
Titolo Testata:
JOURNAL OF TRACE AND MICROPROBE TECHNIQUES
fascicolo: 3, volume: 19, anno: 2001,
pagine: 375 - 392
SICI:
0733-4680(2001)19:3<375:SABSOB>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
CORROSION;
Keywords:
biofilms; microbially influenced corrosion; bacteria; carbon steel; stainless steels; biodegradation; TEM; EDXA; SAED; X-ray analysis;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Feugeas, F ENSAIS, Lab Ingn Surfaces Strasbourg, 24 Blvd de la Victoire, F-67084 Strasbourg, France ENSAIS 24 Blvd de la Victoire Strasbourg France F-67084 France
Citazione:
F. Feugeas et al., "Structural and biochemical study of biofilms on steels in potable water with electronic microprobe techniques", J TR MICROP, 19(3), 2001, pp. 375-392

Abstract

It is known that microorganisms can have a damaging effect and induce microbially influenced corrosion. The majority of bacteria grow in enclosed biofilms attached to surfaces. We, studied different biofilms grown on four steels grades in the same bio-environmental conditions in order to evaluate their action on the different materials. The study of biofilm composition formed on common steels immerged in a natural potable water has been made with electron microscopic techniques coupled with different X-ray analysis. The results allowed Lis to propose schematic models of biofilms formed on a carbon steel (grade 1038) and three stainless steels grades (304, 304L, 316L). We developed a preparation technique of embedding corroded test coupons in plastic preventing any loss of information regarding to the biological composition of the biofilm on carbon steel. Components present in the biofilms were observed by TEM and identified by EDX and SAED analysis. The relations between identified products near bacteria and metabolic activity of themicroorganisms have been studied in order to determine the contribution ofliving organisms in the corrosion.

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Documento generato il 02/12/20 alle ore 05:08:21