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51314-3817-Magnetic Fields Effects on The Microbiologically Influenced Corrosion of Linepipe Steel

Picture for Magnetic Fields Effects on The Microbiologically Influenced Corrosion of Linepipe Steel
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Product Number: 51314-3817-SG
ISBN: 3817 2014 CP
Author: Faisal Alabbas
Publication Date: 2014
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It has been accepted that corrosion protection systems and non-destructive inspection methods produce remnant magnetic field (RMF) to pipeline steel. The present study investigates the influence of remnant magnetic fields inducted by these tools on microbiologically influenced corrosion (MIC) by a SRB consortium. The corrosion behavior of carbon linepipe steel exposed to different conditions having either a magnetized or nonmagnetized biotic medium was investigated by exposure immersion tests electrochemical impedance spectroscopy (EIS) linear polarization resistance (Rp) and open circuit potential (OCP). The corrosion products biofilm and pit morphology that developed with time were characterized using scanning field emission scanning electron microscopy (FE-SEM). The results confirm substantial increases of bacteria cell attachment biofilm mass corrosion and pitting under magnetized biotic conditions compared to a nonmagnetized biotic system. The significant enhancement of MIC under magnetized biotic conditions has been attributed to the synergetic interaction between SRB cells and associated metabolic products with magnetic fields.
It has been accepted that corrosion protection systems and non-destructive inspection methods produce remnant magnetic field (RMF) to pipeline steel. The present study investigates the influence of remnant magnetic fields inducted by these tools on microbiologically influenced corrosion (MIC) by a SRB consortium. The corrosion behavior of carbon linepipe steel exposed to different conditions having either a magnetized or nonmagnetized biotic medium was investigated by exposure immersion tests electrochemical impedance spectroscopy (EIS) linear polarization resistance (Rp) and open circuit potential (OCP). The corrosion products biofilm and pit morphology that developed with time were characterized using scanning field emission scanning electron microscopy (FE-SEM). The results confirm substantial increases of bacteria cell attachment biofilm mass corrosion and pitting under magnetized biotic conditions compared to a nonmagnetized biotic system. The significant enhancement of MIC under magnetized biotic conditions has been attributed to the synergetic interaction between SRB cells and associated metabolic products with magnetic fields.
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