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07623 CORROSION AND INHIBITION OF 0.5% CHROMIUM STEEL

Picture for 07623 CORROSION AND INHIBITION OF 0.5% CHROMIUM STEEL
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Product Number: 51300-07623-SG
ISBN: 07623 2007 CP
Author: Huey J. Chen and Yue Chen
Publication Date: 2007
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Corrosion behavior of 0.5% chromium steel with or without the presence of commercial inhibitors was investigated electrochemically including EIS (Electrochemical Impedance Spectroscopy) and LPR (Linear Polarization Resistance) in an aqueous CO2 environment at different temperatures and varying wall shear stresses. For comparison, the corrosion behavior of C-1018 carbon steel was also evaluated in the same test environments. The results indicated that, under the test conditions, 0.5% chromium did not improve the corrosion resistance of C-1018 carbon steel and in fact, the corrosion rate of 0.5% chromium was higher than that of the C-1018 carbon. However, the corrosion rate of 0.5% Cr steel was effectively reduced by adding 10 ppm of the commercial corrosion inhibitors tested. The effect of shear stress on inhibitor performance was not significant at the testing shear stress ranging from 36.7 to 87.4 Pa.
Corrosion behavior of 0.5% chromium steel with or without the presence of commercial inhibitors was investigated electrochemically including EIS (Electrochemical Impedance Spectroscopy) and LPR (Linear Polarization Resistance) in an aqueous CO2 environment at different temperatures and varying wall shear stresses. For comparison, the corrosion behavior of C-1018 carbon steel was also evaluated in the same test environments. The results indicated that, under the test conditions, 0.5% chromium did not improve the corrosion resistance of C-1018 carbon steel and in fact, the corrosion rate of 0.5% chromium was higher than that of the C-1018 carbon. However, the corrosion rate of 0.5% Cr steel was effectively reduced by adding 10 ppm of the commercial corrosion inhibitors tested. The effect of shear stress on inhibitor performance was not significant at the testing shear stress ranging from 36.7 to 87.4 Pa.
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