Journal
CORROSION SCIENCE
Volume 112, Issue -, Pages 241-245Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.07.019
Keywords
Steel; Iron; X-ray diffraction; Atmospheric corrosion; Rust
Funding
- JSPS KAKENHI, Japan [23760699, 26420739]
- Grants-in-Aid for Scientific Research [26420739, 23760699] Funding Source: KAKEN
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For simulation of the atmospheric corrosion of steel in a coastal industrial district, beta-FeOOH rusts were synthesized by aging the aqueous FeCl3 solutions containing SO32-. The yield and crystallite size of beta-FeOOH were remarkably decreased by adding SO32-, implying the suppression of formation and crystallization of beta-FeOOH. Before aging, added SO32- broke the coordination of Cl(-)and OH- to Fe3+ in Fe3+-complexes and reduced the Fe3+ to Fe2+. These facts suppose that SO32- generated by dissolution of SOx gas in thin film water on the steels at a coastal industrial zone markedly inhibits the formation of beta-FeOOH rust. (C) 2016 Elsevier Ltd. All rights reserved.
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