EVALUATION AND COMPARISON OF CORROSION BEHAVIOR ON 20 & 08 CARBON STEELS IN SIMULATED CIRCULATING COOLING WATER

J Chin Soc Corr Pro

2011, Vol. 31

Issue (4): 289-293 DOI:

Research Articles

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EVALUATION AND COMPARISON OF CORROSION BEHAVIOR ON 20 & 08 CARBON STEELS IN SIMULATED CIRCULATING COOLING WATER

LIU Zuojia¹, CHENG Xuequn¹, LV Shengjie², LI Xiaogang¹

1. Corrosion and Protection Centre, University of Science and Technology Beijing, Beijing 100083
2. Equipment and Power Department, Shijiazhuang Refine & Chemical Company Limited, SINOPEC,Shijiazhuang 050032

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Abstract Evaluated and compared with the corrosion resistance of 20 & 08 carbon steels by electrochemical and immersion experiments. It can be seen that the corrosion resistance of 08 carbon steel is greater than 20 carbon steel from the experiment results. More and more Cl^- which properly accumulated on the surface of pipeline and hard to diffuse from the steel when the water layer formed on the surface of metal become thicker, and then corrosion problem got worse. The content of Cr in 08 carbon steel is higher than 20 carbon steel which is properly reason why the corrosion resistance of 08 carbon steel is better than 20 carbon steel

Key words: polarization electrochemical impedance spectroscopy(EIS) immersion 20 carbon steel 08 carbon steel

Received: 20 April 2010

ZTFLH:

TG174.2

Corresponding Authors: LIU Zuojia E-mail: lzandj@yahoo.com.cn

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LIU Zuojia, CHENG Xuequn, LV Shengjie, LI Xiaogang. EVALUATION AND COMPARISON OF CORROSION BEHAVIOR ON 20 & 08 CARBON STEELS IN SIMULATED CIRCULATING COOLING WATER. J Chin Soc Corr Pro, 2011, 31(4): 289-293.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2011/V31/I4/289

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