Behaviour of leaded tin bronze in simulated seawater in the absence and presence of tribological contact with alumina counterbody: Corrosion, wear and tribocorrosion

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    Abstract

    Corrosion, wear and tribocorrosion behaviours of leaded tin bronze were examined in simulated seawater using alumina counterbody for tribological contact. Active dissolution of alloy and corrosion product development on surfaces were the dominant corrosion mechanisms. Tribological contact with counterbody removed majority of the products, thus contributing to active dissolution of freshly exposed surface. This wear-induced corrosion mechanism contributed to 45% and 60% of total material losses at the two highest potentials, 50 mV and 250 mV vs. Ag/AgCl. Pure wear of alloy occurred in the form of abrasive wear. At anodic potentials under tribological contact, corrosion raised the friction coefficient as compared to pure wear and increased wear of the alloy. These results are presented and discussed in this paper.
    Original languageEnglish
    Pages (from-to)257-271
    Number of pages15
    JournalTribology International
    Volume129
    DOIs
    Publication statusPublished - Jan 2019
    MoE publication typeNot Eligible

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    Keywords

    • Contact: sliding
    • Surface: chemical analysis
    • Synergism: tribochemistry
    • Wear: corrosive

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