%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Schlegel, M. L.
%A Necib, S.
%A Daumas, S.
%A Labat, Marc
%A Blanc, C.
%A Foy, E.
%A Linard, Y.
%T Corrosion at the carbon steel-clay borehole water interface under anoxic alkaline and fluctuating temperature conditions
%D 2018
%L fdi:010072774
%G ENG
%J Corrosion Science
%@ 0010-938X
%K Carbon steel ; Clay ; Anoxic ; Nuclear waste repository ; Fe-silicate ; Sulfide
%M ISI:000430630500008
%P 70-90
%R 10.1016/j.corsci.2018.02.052
%U https://www.documentation.ird.fr/hor/fdi:010072774
%> https://www.documentation.ird.fr/intranet/publi/2018/05/010072774.pdf
%V 136
%W Horizon (IRD)
%X Coupons of carbon steel were corroded in situ in anoxic clay porewater under slightly alkaline conditions. Sample damage was less than 1 mu m for 9 months at 85 degrees C only, and corrosion interfaces were covered by a thin, protective layer of Fe-silicate. The damage was more significant for samples exposed to room temperature transients (up to 38 mu m for two years), and the long-term surface differentiated in cathodic (Fe-silicate covered) areas and anodic crevices filled with siderite, chukanovite, beta-Fe-2(OH)(3)Cl, and covered by tubercles. Sulfide compounds were detected, and were related to the metabolism of sulfate-reducing prokaryotes detected by microbiological techniques.
%$ 084 ; 020