Abstract
This work presents a comprehensive electrochemical corrosion analysis conducted on steel coated with glass-reinforced polymer (GRP), low alloy steel and stainless steel, focusing on their performance in a simulated aggressive environment (3 % NaCl). The corrosion rates were established and the corrosion mechanisms governing each material's behaviour were elucidated. By comparing the electrochemical behaviour of these materials, we aim to evaluate the efficacy of GRP coatings in preventing corrosion compared to conventional metallic materials used for pipeline systems. Furthermore, in addition to the corrosion analysis, the coefficient of friction determination between the GRP-coated steel and 25CrMo4 (EN 10083-3) steel was conducted to assess their tribological compatibility. Understanding the frictional behaviour between these materials is essential for optimising pipeline performance, minimising wear and ensuring operational efficiency in dynamic environments encountered in the petroleum and gas industry. The study includes, also, an evaluation of cumulative linear wear to quantify the material loss. This comprehensive approach provides a complete understanding of the interplay between corrosion resistance and mechanical durability.
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