Improving the corrosion resistance of AZ91D magnesium alloy through reinforcement with titanium carbides and borides

Mohamed Gobara, Mohamed Shamekh, Robert Akid

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A composite consisting of magnesium matrix reinforced with a network of TiCeTi2AlCeTiB2 particulates has been fabricated using a practical in-situ reactive infiltration technique. The microstructural and phase composition of the magnesium matrix composite (R-Mg) was investigated using SEM/EDS and XRD. The analyses revealed the complete formation of TiC, Ti2AlC and TiB2 particles in the magnesium matrix. Comparative compression tests of R-Mg and AZ91D alloy showed that the reinforcing particles improve the mechanical properties of Mg alloy. EIS and potentiodynamic polarization results indicated that the reinforcing particles significantly improve the corrosion resistance of the reinforced alloy in 3.5% NaCl solution.
    Original languageEnglish
    Pages (from-to)1-9
    Number of pages8
    JournalJournal of Magnesium and Alloys
    DOIs
    Publication statusPublished - 20 Mar 2015

    Keywords

    • Magnesium composite
    • EIS
    • Compression test
    • Passivity

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