Tuesday, March 18, 2008 - 8:55 AM
Convention Center, Second Level, R08 (Ernest N. Morial Convention Center)
08363

Evaluation of DBU as Corrosion Inhibitor for Secondary Cycle Pressurized Water Reactor

Haritha Namduri and Seifollah Nasrazadani, University of North Texas

ABSTRACT

The effect of 1, 8-Diazabicyclo [5.4.0] undec-7-ene (DBU on Inconel 600 coupons was studied at room temperature. The experiments were carried out using AC-Impedance spectroscopy at frequency range of 100 kHz -5 Hz to study response of alloy 600 to the presence of DBU in an aqueous solution. Equivalent circuit representing frequency response of DBU in aqueous solution on Alloy 600 is presented. The Nyquist plots showed very good protection initially but the film failed after exposing to amine solution for 24 hours.


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