Performance of laser-consolidated plasma-spray coatings on Fe-28Mn-7A1-1C alloy

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Abstract

    The morphology and corrosion behaviour of the plasma-sprayed and laser-consolidated Cr, Mo and Cr-Mo coatings on the Fe-28Mn-7A1-1C alloy were investigated by means of scanning electron microscopy (SEM) and potentiodynamic measurements. SEM observations revealed that a multilayer of Cr and Mo was formed on the Cr-Mo plasma-spray coating. The chemical inhomogeneity in this coating was removed by the laser treatment. Potentiodynamic measurements showed that the laser-modified Mo plasma-spray coating passivates with difficulty in sulphuric acid solution. However, the addition of Cr to the Mo plasma-spray coating increases the ability of the laser-glazed surface alloy to passivate in sulphuric acid solution.
    Original languageEnglish
    Pages (from-to)95-100
    JournalThin Solid Films
    Volume274
    Issue number1-2
    DOIs
    Publication statusPublished - Mar 1996

    Research Keywords

    • Alloys
    • Laser irradiation
    • Plasma processing and deposition
    • Surface melting

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