Corrosion characteristics of surface-modified DET magnesium powders

W. S. Chung, W. Y. Yoon, K. J. Kim

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    Magnesium powders having inactive surface layer have been processed easily and intentionally by DET under fluoride, chromate, and bromide salt. The modified surfaces play an important role in preventing contact with active environments to improve corrosion resistance of Magnesium powders; the image of the surface modified powders was observed using SEM. The composition distribution and characteristics was determined and analyzed by using XRD, XPS, and EIS. Compared with bare Magnesium, the Magnesium having chromate modified surface layer showed a more passive behavior such as smaller current density and nobler potential in 4wt% NaCl solution.

    Original languageEnglish
    Pages (from-to)369-372
    Number of pages4
    JournalMaterials Science Forum
    Volume449-452
    Issue numberI
    DOIs
    Publication statusPublished - 2004
    EventDesigning, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of
    Duration: 2003 Nov 52003 Nov 8

    Keywords

    • Droplet emulsion technique (DET)
    • Electrochemical corrosion
    • Electrochemical impedance spectroscopy (EIS)
    • Potentiodynamic polarization curve
    • Surface modified magnesium

    ASJC Scopus subject areas

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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