Electrochemical investigation of the role of cl- on localized carbon dioxide corrosion behavior of mild steel
MetadataShow full item record
Electrochemical behavior of localized carbon dioxide (CO2) corrosion of X65 mild steel at 80°C in 0.1, 1.0, 10, and 20 wt% sodium chloride (NaCl) solutions have been investigated using electrochemical techniques including linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS). Surface morphology of specimens was observed using scanning electron microscopy (SEM). Pit depth and its corresponding 3D optical measurement were undertaken using infinite focus microscopy (IFM). The results showed that Cl- concentration had only a slight effect on general corrosion rate. It also revealed that increasing Cl- concentration did not accelerate the initiation of localized corrosion; localized corrosion rate did not change with increasing NaCl solution concentrations; and chemical dissolution of corrosion product film could initiate localized CO 2 corrosion. © 2013, NACE International.
Showing items related by title, author, creator and subject.
Investigation of the impact of nitrate injection to control sourcing problem in oil reservoir : benefit and side effects on steel materialsHalim, Amalia Yunita (2011)The successful control of reservoir souring by nitrate injection has been well documented in the literature. Recent interest has centred on how nitrate application can increase the corrosion risk in pipelines and metal ...
Estimation of electrochemical noise impedance and corrosion rates from electrochemical noise measurements.Lowe, Alexander M. (2002)Electrochemical noise refers to the spontaneous fluctuations in potential and current that can be observed on a corroding metal. The use of electrochemical noise for obtaining information on the corrosion process generates ...
Pandarinathan, V.; Lepková, K.; Bailey, S.; Gubner, Rolf (2013)Solid deposits are frequently encountered in oil and gas flowlines and are often related to causing premature pipeline failures by enhancing the internal corrosion process. In presence of accumulated deposits, the integrity ...