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51312-01296-Severe MIC Pitting Corrosion of 304L Stainless Steel Components After A Relatively Short Period of E

Picture for Severe MIC Pitting Corrosion of 304L Stainless Steel Components After A Relatively Short Period of E
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Product Number: 51312-01296-SG
ISBN: 01296 2012 CP
Author: Weiji Huang
Publication Date: 2012
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Severe MIC Pitting Corrosion of 304L Stainless Steel Components After A Relatively Short Period of Exposure to Natural Seawater Weiji Huang Fang Cao* John Lafontaine and Jennifer Hornemann** ExxonMobil Development Company *ExxonMobil Research and Engineering Company **ExxonMobil Upstream Research Company Abstract Severe pitting corrosion was observed on various 304L stainless steel components after being submerged in natural seawater during a hurricane flood for couple of months. Corrosion morphologies were studied using optical and scanning electron microscope. The trapped water and particulates in the components were cultured in the lab to determine the types and amount of the bacteria. The findings indicated that the MIC (microbiological influenced corrosion) was primarily responsible for this unusual localized rapid corrosion. It is believed that sessile bacteria in biofilm consortia on steel surfaces created local acidic environments which accelerated the pitting corrosion kinetics resulting in deep pits.
Severe MIC Pitting Corrosion of 304L Stainless Steel Components After A Relatively Short Period of Exposure to Natural Seawater Weiji Huang Fang Cao* John Lafontaine and Jennifer Hornemann** ExxonMobil Development Company *ExxonMobil Research and Engineering Company **ExxonMobil Upstream Research Company Abstract Severe pitting corrosion was observed on various 304L stainless steel components after being submerged in natural seawater during a hurricane flood for couple of months. Corrosion morphologies were studied using optical and scanning electron microscope. The trapped water and particulates in the components were cultured in the lab to determine the types and amount of the bacteria. The findings indicated that the MIC (microbiological influenced corrosion) was primarily responsible for this unusual localized rapid corrosion. It is believed that sessile bacteria in biofilm consortia on steel surfaces created local acidic environments which accelerated the pitting corrosion kinetics resulting in deep pits.
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02446 MICROBIOLOGICALLY INFLUENCED CORROSION FAILURE ANALYSIS OF 304L STAINLESS STEEL PIPING SYSTEM LEFT STAGNANT AFTER HYDROTESTING WITH CITY WATER

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ISBN: 02446 2002 CP
Author: Susan W. Borenstein and Philip B. Lindsay
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A case history is described involving microbiologically influenced corrosion (MIC) of AISI Type 304L stainless steel piping failure after being in contact with untreated stagnant, low chloride potable water for nine months. Specialized microbiological analysis techniques, including scanning electron and optical cmicroscopy, were used in the failure analysis.
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