An experimental and simulation screening of X-65 steel weldment corrosion in high flow rate conditions

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dc.contributor.authorNofrizal, Nofrizal
dc.contributor.authorWulandari, Meyliana
dc.contributor.authorImpey, Susan
dc.contributor.authorGeorgarakis, Konstantinos
dc.contributor.authorPapanikolaou, Michail
dc.contributor.authorRaja, Pandian Bothi
dc.date.accessioned2024-06-28T10:23:24Z
dc.date.available2024-06-28T10:23:24Z
dc.date.issued2024-04-01
dc.description.abstractOver many decades, the oil and gas industry has encountered significant challenges due to weldment corrosion. The issue of internal-pipeline local corrosion at the welded joint region has garnered significant concern, especially due to the combined impact of high shear stress and electrochemical corrosion. This combination can lead to pipeline rupture with relative ease. Hence, a new approach to screen the flow corrosion of X-65 steel via electrochemical methods, predicting fluid shear stress and velocity using computational fluid dynamic (CFD) simulation is positively tested and presented here. For that, the X-65 steel specimens were cut/designed as the inner, centre, and outer electrodes of the target to analyse the Weld Metal (WM), Heat Affected Zone (HAZ), and Parent Metal (PM). Electrochemical screening was carried out simultaneously at a flow of 10 m/s using a brine solution saturated with CO2. The PM and HAZ will corrode less than the WM, in some cases at 30–23% of the rate of the WM. Thus in an environment of uninhibited brine saturated with CO2 at 10 m/s, preferential weld corrosion (PWC) is expected to occur. In addition, the surface morphology screening (scanning electron microscope with energy dispersive x-ray analysis, X-Ray diffraction, focus ion beam, raman spectroscopy) was employed to monitor the corrosion damage on the metal surface and also to support the electrochemical measurements (linear polarization resistance, galvanic measurement, and electrochemical impedance spectroscopy).en_UK
dc.description.sponsorshipThis research was funded by the Ministry of Energy and Mineral Resources (INDONESIA)en_UK
dc.identifier.citationNofrizal N, Wulandari M, Impey S, et al., (2024) An experimental and simulation screening of X-65 steel weldment corrosion in high flow rate conditions. Materials Today Communications, Volume 39, June 2024, Article number 108793en_UK
dc.identifier.issn2352-4928
dc.identifier.urihttps://doi.org/10.1016/j.mtcomm.2024.108793
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22576
dc.language.isoen_UKen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectComputational fluid dynamicsen_UK
dc.subjectElectrochemicalen_UK
dc.subjectHeat affected zoneen_UK
dc.subjectParent metalen_UK
dc.subjectWeld metalen_UK
dc.titleAn experimental and simulation screening of X-65 steel weldment corrosion in high flow rate conditionsen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-03-29

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