Continuous monitoring of aluminum corrosion process in deaerated water

Katsuya Ishii, Ryota Ozaki, Kenji Kaneko, Hisaaki Fukushima, Masataka Masuda

    Research output: Contribution to journalArticlepeer-review

    25 Citations (Scopus)

    Abstract

    A device was developed for the continuous measurement of the open circuit corrosion rate of aluminum in deaerated water from hydrogen pressure, resulted from the cathodic reaction. Corrosion rate of aluminum coated by the passive oxide film was examined with respect to the corrosion phenomena using this device. From the results, it was found that the corrosion rate was dependent not only on the deterioration of the film, but also on the formation of pits and of corrosion products on the film. Furthermore, the deterioration of the film was independent on the pH of the water. The pits were most probably formed by the evolution of hydrogen gas at the cathode underneath the film followed by the formation of Al (OH)4-.

    Original languageEnglish
    Pages (from-to)2581-2601
    Number of pages21
    JournalCorrosion Science
    Volume49
    Issue number6
    DOIs
    Publication statusPublished - Jun 1 2007

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Science(all)

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