Corrosive wear behavior and the synergy of high manganese steel under static
oxygen aeration
stirring and corrosive impact abrasion conditions were investigated by using self-made impact corrosive wear tester. The corresponding proportions of individual corrosion
wear and corrosive wear synergy to the total material loss were evaluated via electrochemical method
cumulative mass loss rate analysis and linear regression analysis. The results reveal that oxygen aeration and stirring accelerate the transport of oxygen to the substrate surface
and the corrosion rates increase by 1.05 and 2.04 times than that under static corrosion
respectively. The cumulative wear mass loss
surface hardness and corrosive wear synergy of the high manganese steel increase with increasing impact energy. The electrochemical corrosion rate gets 15.15 - 25.54 times higher than the static corrosion rate under different impact energy
and the proportion of corrosive wear synergy to total material loss is 12.07% - 26.69%
which indicates certain synergistic effect between corrosion and wear. Wear-accelerated corrosion is the dominating mechanism of the synergy under low impact energy(1 J)
and corrosion-accelerated wear becomes the dominating mechanism under high impact energy(2 - 4 J).
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references
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