Abstract
Corrosion products formed on an iron foil by sulfuric acid water have been investigated with Conversion electron Mossbauer spectroscopy (CEMS). The resultant species of corrosion products are strongly influenced by oxygen concentration during the corrosion process. In order to investigate the corrosion products when oxygen is sufficiently supplied during the corrosion process, a natural iron foil was immersed in the acid water and air was blown into the water during the immersion of the foil. Conversion electron Mossbauer spectra were taken at temperatures between 15 K and room temperature. The hyperfme field of the observed sextet at 15 K suggests that the corrosion products consist of γ-FeOOH. The corrosion products formed on the weathering steel were also investigated.
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