Influence of temperature on the corrosion and tribocorrosion behaviour of High-Strength Low-Alloy steels used in offshore applications. (May 2018)

• Record Type: Journal Article
• Authors: López-Ortega, A.; Bayón, R.; Arana, J.L.; Arredondo, A.; Igartua, A.
• Is Part Of: Tribology international. Volume 121(2018)
• Page Start: 341
• Page End: 352
• Publication Date: 2018-05
• Subjects: High Strength Low Alloy steel -- Tribocorrosion -- Seawater -- Offshore; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2018.01.049
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Tribocorrosion is an important failure cause of High-Strength Low-Alloy steel (HSLA) components in offshore applications due to the synergistic effect of wear and the corrosiveness of seawater. In this work, the effect of temperature on the tribocorrosion behaviour of two steel grades has been investigated by performing tribocorrosion tests under reciprocating sliding at two electrolyte temperatures. The total material loss due to corrosion in the unworn surface and due to tribocorrosion in the wear track was quantified. Sliding was found to accelerate the corrosion in the unworn area. Furthermore, temperature was confirmed to have an important effect on the tribocorrosion behaviour of the steels, in terms of higher material losses due to corrosion at higher test temperature. Highlights: The influence of temperature on the tribocorrosion behaviour of two mooring steel grades was studied. Bidirectional sliding wear tests were performed at two electrolyte temperatures (2 °C and 23 °C). The corrosion resistance decreased considerably during sliding, specially at 23 °C. The principal cause of material loss was tribocorrosion in the wear track. The material loss due to pure corrosion was more than two times higher at 23 °C.