Corrosion behavior of twinning-induced plasticity (TWIP) steel

Authors

  • M. Bobby Kannan,

    Corresponding author
    1. Department of Mechanical and Aerospace Engineering, Monash University (Melbourne), Victoria 3800, (Australia)
    2. Discipline of Chemical Engineering, James Cook University, Townsville, Queensland 4811, (Australia)
    • Department of Mechanical and Aerospace Engineering, Monash University (Melbourne), Victoria 3800, (Australia).
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  • R. K. Singh Raman,

    1. Department of Mechanical and Aerospace Engineering, Monash University (Melbourne), Victoria 3800, (Australia)
    2. Department of Chemical Engineering, Monash University (Melbourne), Victoria 3800, (Australia)
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  • S. Khoddam,

    1. Department of Mechanical and Aerospace Engineering, Monash University (Melbourne), Victoria 3800, (Australia)
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  • S. Liyanaarachchi

    1. Discipline of Chemical Engineering, James Cook University, Townsville, Queensland 4811, (Australia)
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Abstract

In this study, the corrosion behavior of twinning-induced plasticity (TWIP) steel i.e. Fe-Mn-Al-Si steel subjected to cold-working (0, 20, and 35%), was examined in acidic (0.1 M H2SO4), alkaline (0.1 M NaOH) and chloride-containing (3.5% NaCl) environments, using potentiodynamic polarization experiments. Interestingly, cold-working did not show any significant change in the corrosion susceptibility of TWIP steel in all the three environments. However, TWIP steel showed the highest corrosion susceptibility in acidic environment and the lowest in alkaline environment. Scanning electron microscope analysis of the corroded TWIP steel samples revealed high-localized attack in acidic environment and some pitting corrosion in chloride-containing solution.

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