Inhibition of Corrosion of Carbon steel by Thiourea – Zn 2 + System in Natural Sea Water PERFORMANCE EVALUATION OF ARRAY ANTENNAS
نویسنده
چکیده
The inhibition efficiency (IE) of Thiourea (TU) in controlling corrosion of carbon steel in sea water in the absence and presence of Zn 2+ has been evaluated by weight loss method. The formulation consisting of 200 ppm TU and 50 ppm Zn 2+ has 95% IE. A synergistic effect exists between TU and Zn 2+ . Synergism has been confirmed by Synergism parameter and F-Test. Influence of immersion period and pH on the IE of the inhibitor system has been investigated. AC Impedance study reveals that a protective film formed on the metal surface. The nature of the protective film has been characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM).
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