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51315-5448-Protection Effectiveness of Vapor Corrosion Inhibitor for Corrosion under Insulation

Picture for Protection Effectiveness of Vapor Corrosion Inhibitor for Corrosion under Insulation
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Product Number: 51315-5448-SG
ISBN: 5448 2015 CP
Author: Behzad Bavarian
Publication Date: 2015
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$20.00
$20.00
Effectivenesses of commercially available vapor corrosion inhibitors (VCI) were investigated to combat corrosion under insulation (CUI). A laboratory corrosion cell set-up was designed and constructed to investigate protection of corrosion under insulation (CUI) on a pipe section using vapor phase corrosion inhibitors. The CUI corrosion test cell consisted of a three feet four inch carbon steel pipe wrapped by insulation and covered with galvanized steel. One corrosion cell was used as the control while the other two setups were used to monitor vapor phase corrosion inhibitors. Corrosion measurements were made using both electrochemical potential and polarization resistance data collection under isothermal and cyclic wet/dry test conditions (GM test protocol for cyclic corrosion tests). These test setup was used to successfully simulate CUI in the laboratory environment monitor the degree of wetness of the pipe surface evaluate the degree of aggressiveness and different modes of corrosion observed with CUI and evaluate VCI effectiveness to reduce CUI under simulated CUI test conditions. Current results have demonstrated that VCI can successfully reduce corrosion attacks under insulation despite the fact the pipe surfaces maintained wet almost continuously.
Effectivenesses of commercially available vapor corrosion inhibitors (VCI) were investigated to combat corrosion under insulation (CUI). A laboratory corrosion cell set-up was designed and constructed to investigate protection of corrosion under insulation (CUI) on a pipe section using vapor phase corrosion inhibitors. The CUI corrosion test cell consisted of a three feet four inch carbon steel pipe wrapped by insulation and covered with galvanized steel. One corrosion cell was used as the control while the other two setups were used to monitor vapor phase corrosion inhibitors. Corrosion measurements were made using both electrochemical potential and polarization resistance data collection under isothermal and cyclic wet/dry test conditions (GM test protocol for cyclic corrosion tests). These test setup was used to successfully simulate CUI in the laboratory environment monitor the degree of wetness of the pipe surface evaluate the degree of aggressiveness and different modes of corrosion observed with CUI and evaluate VCI effectiveness to reduce CUI under simulated CUI test conditions. Current results have demonstrated that VCI can successfully reduce corrosion attacks under insulation despite the fact the pipe surfaces maintained wet almost continuously.
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