FN Archimer Export Format
PT J
TI Influence of dissolved oxygen content on the bacteria‐induced ennoblement of stainless steels in seawater and its consequence on the localized corrosion risk
BT 
AF Trigodet, Florian
   Larché, Nicolas
   Morrison, Hilary G.
   Maignien, Lois
   Thierry, Dominique
AS 1:1;2:2;3:3;4:1,3;5:2;
FF 1:;2:;3:;4:;5:;
C1 Laboratoire de Microbiologie des Environnements Extrêmes, Univ Brest, CNRS, Ifremer, UMR 6197 Plouzané , France
   French Corrosion Institute Brest, France
   Marine Biological Laboratory, Josephine Bay Paul Center for Comparative Molecular Biology and Evolution Woods Hole Massachusetts, USA
C2 UBO, FRANCE
   INST CORROSION, FRANCE
   MARINE BIOLOGICAL LAB, USA
UM BEEP-LM2E
IN WOS Cotutelle UMR
   copubli-france
   copubli-int-hors-europe
IF 1.533
TC 2
UR https://archimer.ifremer.fr/doc/00588/70026/67934.pdf
LA English
DT Article
DE ;16S rRNA gene;electroactive bacteria;ennoblement;microbial ecology;natural seawater;stainless steel
AB The ennoblement of stainless steel (e.g., the increase of open circuit potential [OCP]) is associated with bacterial colonization. This increases the risk of localized corrosion as the critical pitting/crevice potential can be overcome, especially for lower grade stainless steel. In this study, we assessed the influence of dissolved oxygen content (DOC) on the crevice corrosion of duplex and super duplex stainless steels. In addition, we used DNA amplicon sequencing to identify the bacteria most likely associated with the ennoblement. Above approximately 100 parts per billion (ppb) of dissolved oxygen, the ennoblement of OCP was observed leading to an increased risk of localized corrosion. Below approximately 100 ppb of dissolved oxygen, no ennoblement occurred and the risk of localized corrosion was reduced. We identified certain hydrocarbon‐degrading bacteria whose presence correlated with the ennoblement of super duplex stainless steel at saturated DOC. The role of these bacteria is not clear yet, but their distribution indicates a possible involvement in stainless steel ennoblement in seawater. 
PY 2019
PD DEC
SO Materials And Corrosion-werkstoffe Und Korrosion
SN 0947-5117
PU Wiley
VL 70
IS 12
UT 000489503300001
BP 2238
EP 2246
DI 10.1002/maco.201911225
ID 70026
ER

EF