Effect of alternate corrosion and wear on the overall degradation of a dual phase and a mild steel

The present work investigates the alternate corrosion and wear effect on the overall degradation of a dual phase and a mild steel. In case of corrosion-wear, immersion corroded samples of both the steels in freely aerated 3.5wt% NaCl solution are subjected to reciprocating sliding wear at three diff...

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Bibliographic Details
Published in:Wear 2016-12, Vol.368-369, p.368-378
Main Authors: Murkute, Pratik, Ramkumar, J., Choudhary, S., Mondal, K.
Format: Article
Language:English
Subjects:
Aeration
Coefficient of friction
Corrosion
Corrosion effects
Corrosion rate
Corrosive wear
Degradation
Dual phase steels
Duplex stainless steels
Frictional wear
Immersion corrosion
Low carbon steels
Lubrication
Sliding friction
Sliding wear
Sodium chloride
Steel
Steel, Corrosion-wear
Surface analysis
Surface chemistry
Wear resistance
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Summary:The present work investigates the alternate corrosion and wear effect on the overall degradation of a dual phase and a mild steel. In case of corrosion-wear, immersion corroded samples of both the steels in freely aerated 3.5wt% NaCl solution are subjected to reciprocating sliding wear at three different loads. In case of wear-corrosion, wear takes place first in the steel samples, which are then subjected to immersion corrosion. The wear volume and mean coefficient of friction have decreased for the corrosion-wear case as compared to only wear, and this attributes to the lubricating action of rust formed due to initial corrosion. In case of wear-corrosion, corrosion rates of both the samples have increased as compared to only corrosion situation, which attributes to the rough and strained surface created due to initial wear. Though both the trends are independent of types of steels, the overall wear of the dual phase steel is lower than that of the mild steel, whereas, corrosion rate of the dual phase steel is higher than the mild steel in both the corrosion-wear and wear-corrosion cases. •Effect of alternate corrosion and wear on overall degradation of steel is studied.•Rust reduces the coefficient of friction and wear volume due to lubricating action.•Corrosion rate increases after wear due to plastic deformation of the wear track.•Dual phase steel has higher wear resistance than mild steel.•Dual phase steel has higher corrosion rate than mild steel.
ISSN:0043-1648
1873-2577
DOI:10.1016/j.wear.2016.09.027