Corrosion Inhibition of X70 Steel in Saline Solution Saturated With CO2 By Thiourea

Abstract

Abstract: Corrosion monitoring techniques were performed on X70 steel in saline solution saturated with CO2 with and without thiourea additives within the concentration range 5mg/L-25mg/L.It was found that when the concentration of the inhibitors were increased the inhibitor efficiencies ,IE.and IE of thiourea varied with solution temperature ,immersion time. The results indicated that thiourea had the highest inhibiton efficiency.The potentiondynamic polarization studies revealed that thiourea are mixed tye inhibitor that mainly restrain the anodic process.

Key words: corrosion, inhibiton, thiourea, X70 steel

X Y He, H Y Deng, R Li. Corrosion Inhibition of X70 Steel in Saline Solution Saturated With CO2 By Thiourea[J]. Acta Metallurgica Sinica (English Letters), 2008, 21(1): 65-71 .

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Corrosion Inhibition of X70 Steel in Saline Solution Saturated With CO2 By Thiourea

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