Localized Deposits

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Crevice Corrosion in a Subsea System — Aspect Before Analysis

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Microscopical aspect by scanning electron microscopy (SEM) of the external surface of a drilling tool in a position that presented localized deposits and corrosion under deposit. The deep corrosion in a short time is only possible associated to the biological growth and aggressive environment generated by the microorganisms metabolites - Microbiologically Induced Corrosion (MIC).
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ML00135 / May.2018
MIC of a Non Magnetic Drilling Tool
M - High Mn Austenitic SteelP - Tubular ForgingAp - O&G Well DrillingCd - Pitting Corrosion
Cm - Surface Aspect by SEMDf - Localized Deposits