IDENTIFICATION OF GREEN RUST COMPOUNDS IN THE AQUEOUS CORROSION PROCESSES OF STEELS - THE CASE OF MICROBIALLY INDUCED CORROSION AND USE OF 78 K CEMS

Authors
GENIN JMR REFAIT P OLOWE AA ABDELMOULA M FALL I DRISSI SH
Citation
Jmr. Genin et al., IDENTIFICATION OF GREEN RUST COMPOUNDS IN THE AQUEOUS CORROSION PROCESSES OF STEELS - THE CASE OF MICROBIALLY INDUCED CORROSION AND USE OF 78 K CEMS, Hyperfine interactions, 112(1-4), 1998, pp. 47-50
Citations number
7
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
112
Issue
1-4
Year of publication
1998
Pages
47 - 50
Database
ISI
SICI code
0304-3843(1998)112:1-4<47:IOGRCI>2.0.ZU;2-L
Abstract
Fe(II)-Fe(III) hydroxy-sulphate Green Rust 2, GR2(SO4-), is obtained b y microbially induced corrosion of steel. Transmission Mossbauer spect roscopy (TMS) was used to characterise the corrosion products of steel sheet piles under the biofilm at low sea-water level in st harbour. T o understand the process, iron coupons maintained in aqueous solutions of 4 M NaCl and 0.1 M NaHCO3 of pH 7.4 were studied by X ray diffract ion and conversion electron Mossbauer spectroscopy (GEMS) at 78 K. The Fe(II)-Fe(III) hydroxy-carbonate, GR1(CO3-), covers the surface, as p redicted by the E-h-pH diagram.