Journals Information
Manufacturing Science and Technology(CEASE PUBLICATION) Vol. 3(5), pp. 286 - 293
DOI: 10.13189/mst.2015.030515
Reprint (PDF) (746Kb)
Electrochemical Corrosion Behavior of Spirally-welded API X-70 Line-pipe Steel in Acidic and Salt Media
Sohail M. A. Khan 1, Asiful H. Seikh 2,*, Muneer Baig 2, Magdy M. El Rayes 1
1 Department of Mechanical Engineering, College of Engineering, King Saud University, Saudi Arabia
2 Centre of Excellence for Research in Engineering Materials (CEREM), Advanced Manufacturing Institute, King Saud University, Saudi Arabia
ABSTRACT
The electrochemical behavior of spirally-welded API steel was investigated at ambient temperature in 3.5% NaCl and 1M H2SO4 solution using linear polarization and electrochemical impedance spectroscopy (EIS) techniques. In order to reveal the corrosion resistance of different regions within the welded joint some significant characterization parameters in linear polarization and EIS curves were analyzed and compared. The surface morphology of corrosion products was also analyzed by scanning electron microscopy (SEM) and energy-dispersive spectrometer (EDS). The results showed that the corrosion resistance of the steel in both solutions at ambient temperature follows the order Weld Metal - Base Metal and HAZ. The corrosion of welded steel in sulfuric acid solution is more than that in NaCl solution.
KEYWORDS
Welded Line-pipe Steels, Polarization, Electrochemical Impedance Spectroscopy, Corrosion Resistance
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Sohail M. A. Khan , Asiful H. Seikh , Muneer Baig , Magdy M. El Rayes , "Electrochemical Corrosion Behavior of Spirally-welded API X-70 Line-pipe Steel in Acidic and Salt Media," Manufacturing Science and Technology(CEASE PUBLICATION), Vol. 3, No. 5, pp. 286 - 293, 2015. DOI: 10.13189/mst.2015.030515.
(b). APA Format:
Sohail M. A. Khan , Asiful H. Seikh , Muneer Baig , Magdy M. El Rayes (2015). Electrochemical Corrosion Behavior of Spirally-welded API X-70 Line-pipe Steel in Acidic and Salt Media. Manufacturing Science and Technology(CEASE PUBLICATION), 3(5), 286 - 293. DOI: 10.13189/mst.2015.030515.