Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Evaluation of Grooving Corrosion and Electrochemical Properties of H2S Containing Oil/Gas Transportation Pipes Manufactured by Electric Resistance Welding

  • Rahman, Maksudur (Department of Advanced Materials Engineering, Dong-Eui University) ;
  • Murugan, Siva Prasad (Department of Advanced Materials Engineering, Dong-Eui University) ;
  • Ji, Changwook (Advanced Forming Process R&D Group, KITECH) ;
  • Cho, Yong Jin (Ship Infrared Signature Research Center, Department of Naval Architecture and Ocean Engineering, Dong-Eui University) ;
  • Cheon, Joo-Yong (Advanced Forming Process R&D Group, KITECH) ;
  • Park, Yeong-Do (Department of Advanced Materials Engineering, Dong-Eui University)
  • Received : 2018.04.09
  • Accepted : 2018.06.15
  • Published : 2018.06.29
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Abstract

Electrical Resistance Welding (ERW) on a longitudinal seam-welded pipe has been extensively used in oil and gas pipelines. It is well known that the weld zone commonly suffers from grooving corrosion in ERW pipes. In this paper, the grooving corrosion performances of API X65 grade non-sour service (steel-A) and API X70 grade sour gas resistant (steel-B) steel electrical resistance welding pipelines were evaluated. The microstructure of the bondline is composed of coarse polygonal ferrite grains and several elongated pearlites. The elongated pattern is mainly concentrated in the center of the welded area. The grooving corrosion test and electrochemical polarization test were conducted to study the corrosion behavior of the given materials. A V-shaped corrosion groove was found at the center of the fusion zone in both the steel-A and steel-B ERW pipes, as the corrosion rate of the bondlines is higher than that of the base metal. Furthermore, the higher volume fraction of pearlite at the bondline was responsible for the higher corrosion rate at the bondline of both types of steel.

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References

  1. C. Kato, Y. Otoguro, S. Kado, and Y. Hisamatsu, Corros. Sci., 18, 61 (1978) . https://doi.org/10.1016/S0010-938X(78)80076-6
  2. R. Wang and S. Luo, Corros. Sci., 68, 119 (2013). https://doi.org/10.1016/j.corsci.2012.11.002
  3. Z. Bi, R. Wang, and X. Jing, Corros. Sci., 57, 67 (2012). https://doi.org/10.1016/j.corsci.2011.12.033
  4. A. A. Azim, and S. H. Sanad, Corros. Sci., 12, 313 (1972). https://doi.org/10.1016/S0010-938X(72)90949-3
  5. D. Clover, B. Kinsella, B. Pejcic, and R. De Marco, J. Appl. Electrochem., 35, 139 (2005). https://doi.org/10.1007/s10800-004-6207-7
  6. M. A. Lucio-Garcia, J. G. Gonzalez-Rodriguez, M. Casales, L. Martinez, J. G. Chacon-Nava, M. A. Neri-Flores, and A. Martinez-Villafane, Corros. Sci., 51, 2380 (2009). https://doi.org/10.1016/j.corsci.2009.06.022
  7. J. Sanchez, J. Fullea, C. Andrade, J. J. Gaitero, and A. Porro, Corros. Sci., 50, 1820 (2008). https://doi.org/10.1016/j.corsci.2008.03.013
  8. F. Kellou-Kerkouche, A. Benchettara, and S. Amara, Mater. Chem. Phys., 110, 26 (2008). https://doi.org/10.1016/j.matchemphys.2008.01.005
  9. Y. S. Choi, J. J. Shim, and J. G. Kim, J. Alloy. Compd., 391, 162 (2005). https://doi.org/10.1016/j.jallcom.2004.07.081
  10. R. E. Melchers, Corros. Sci., 46, 1669 (2004). https://doi.org/10.1016/j.corsci.2003.10.004
  11. L. R. Bhagavathi, G. P. Chaudhari, and S. K. Nath, Mater. Design, 32, 433 (2011). https://doi.org/10.1016/j.matdes.2010.06.025

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  1. The influence of grooving corrosion on the strength of pipelines vol.164, pp.None, 2018, https://doi.org/10.1051/e3sconf/202016403011