CORROSION BEHAVIOR OF X70 STEEL IN in HAc-NaAc SOLUTION SATURATED WITH CO2

J Chin Soc Corr Pro

2007, Vol. 27

Issue (4): 224-227 DOI:

Research Report

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CORROSION BEHAVIOR OF X70 STEEL IN in HAc-NaAc SOLUTION SATURATED WITH CO2

西华师范大学

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Abstract The corrosive behavior of X70 steel in acid solution at various pH and saturated with N2 or saturated with CO2 was studied by means of Potentiondynamic polarization measurements and EIS.The result showed that the concentration of H+ in solution increase ,at the same time the reduction of H2CO3 and HCO3- could be the additive cathodic reaction,which accelerated the reaction of X70 steel.The adsorption intermediate product was Fe(OH)ads in process of the corrosion reaction of X70 steel in HAc-NaAc solution.

Key words: acid solution CO2 X70 steel corrosion

Received: 25 May 2006

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. CORROSION BEHAVIOR OF X70 STEEL IN in HAc-NaAc SOLUTION SATURATED WITH CO2. J Chin Soc Corr Pro, 2007, 27(4): 224-227 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2007/V27/I4/224

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