Electrochemical corrosion behavior of X52 and X60 steels in carbon dioxide containing saltwater solution

Materials Research

关键词: CO2 corrosion;    petroleum pipelines;    high strength low alloy (HSLA) steel;    X52 steel;    X60 steel;   

DOI  :  

来源: DOAJ

【 摘 要 】

X52 and X60 high strength low alloy (HSLA) steels are widely used in the construction of petroleum pipelines. This paper discusses the corrosion resistance of X52 and X60 steels in CO2 containing saltwater at pH 4.4 and 50 ºC. A circulating flow loop system inside an autoclave was used for conducting the experimental work. The rotating impeller speed was 2000 rpm. The corrosion rate was monitored using in situ electrochemical methods such as potentiodynamic sweep, linear polarization resistance, and electrochemical impedance spectroscopy (EIS) methods. Results indicated that the corrosion rate of X60 steel is relatively higher than that of X52 steel.

【 授权许可】

Unknown