Wulandari, MeylianaNofrizal, NofrizalImpey, SusanGeorgarakis, KonstantinosRaja, Pandian BothiHussin, M Hazwan2024-10-012024-10-012024-12Wulandari M, Nofrizal N, Impey S, et al., (2024) The effect of corrosion inhibitor on X-65 steel weldment in high flow rate conditions. Case Studies in Chemical and Environmental Engineering, Volume 10, December 2024, Article number 1008682666-0164https://doi.org/10.1016/j.cscee.2024.100868https://dspace.lib.cranfield.ac.uk/handle/1826/22977This study aims to determine the performance of a commercial corrosion inhibitor (mixture of ethanediol, 2-butoxy ethanol, and fatty acid amine) in inhibiting weldment corrosion. The inhibitor's effect on parent metals (PM), heat affected zone (HAZ), and weld metal (WM) has been investigated on the corrosion behaviour of X65-welded structures in brine solution (10 m/s) using submerged jet impingement (SJI) flow loops. The results show that inhibitors can reduce the corrosion rate by 10 times to 0.36 mm/y for WM. Linear polarization resistance and electrochemical impedance spectroscopy (EIS) show that the WM exhibited the highest corrosion rate.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/4007 Control Engineering, Mechatronics and Robotics40 EngineeringCorrosion inhibitorHeat affected zoneParent metalPipelineWeld metalArticle2666-016454973410086810