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  • Interfacial study of the formation mechanism of corrosion resistant strontium phosphate coatings upon Mg-3Al-4.3Ca-0.1Mn

    Author(s)
    Ke, Chong
    Song, Ming-Shi
    Zeng, Rong-Chang
    Qiu, Yao
    Zhang, Yu
    Zhang, Rui-Feng
    Liu, Rui-Liang
    Cole, Ivan
    Birbilis, Nick
    Chen, Xiao-Bo
    Griffith University Author(s)
    Cole, Ivan
    Year published
    2019
    Metadata
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    Abstract
    Strontium phosphate (SrPO 4 ) conversion coatings with the ability to impart significant corrosion resistance were prepared upon magnesium alloy Mg-3Al-4.3Ca-0.1 Mn (wt.%). Scanning electron microscopy equipped with energy dispersive spectroscopy and transmission electron microscopy were also employed to characterise surface and interfacial morphology, along with the composition of the coatings. The protective performance of SrPO 4 coatings was examined by potentiodynamic polarisation curves and immersion testing. A coating-growth mechanism was proposed and correlations between processing parameters and coating quality was ...
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    Strontium phosphate (SrPO 4 ) conversion coatings with the ability to impart significant corrosion resistance were prepared upon magnesium alloy Mg-3Al-4.3Ca-0.1 Mn (wt.%). Scanning electron microscopy equipped with energy dispersive spectroscopy and transmission electron microscopy were also employed to characterise surface and interfacial morphology, along with the composition of the coatings. The protective performance of SrPO 4 coatings was examined by potentiodynamic polarisation curves and immersion testing. A coating-growth mechanism was proposed and correlations between processing parameters and coating quality was established. The findings herein provide new insights for design of environmentally-benign and corrosion resistant coatings upon magnesium alloys through a simple chemical conversion technique.
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    Journal Title
    Corrosion Science
    Volume
    151
    DOI
    https://doi.org/10.1016/j.corsci.2019.02.024
    Subject
    Civil engineering
    Materials engineering
    Mechanical engineering
    Publication URI
    http://hdl.handle.net/10072/385668
    Collection
    • Journal articles

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