Corrosion Behavior of Cr-Mo Alloy Steel in Direct Contact with Elemental Sulfur

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The chemical degradation of stainless steel components in sulfur-containing environments is a major concern in oil and gas production. 4130 Cr-Mo alloy steel is widely used as tubing and tubular components in sour services. According to the previous research in aqueous conditions, contact of solid sulfur with alloy steel can initiate catastrophic corrosion problems. This paper discusses elemental sulfur corrosion of Cr-Mo alloy steel in 3.5% sodium chloride solution at pH 2 and 5 during 20 and 30 hours immersion time. The corrosion behavior was monitored by potentiodynamic polarization technique during the experiments. Energy Dispersive X-ray Spectroscopy (EDS), and Scanning Electron Microscopy (SEM) have been applied to characterize the corrosion products after each experiment.

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Edited by:

Prof. Osman Adiguzel, Mário S. Ming Kong and Kai Li

Pages:

9-13

Citation:

L. Khaksar and J. Shirokoff, "Corrosion Behavior of Cr-Mo Alloy Steel in Direct Contact with Elemental Sulfur", Materials Science Forum, Vol. 887, pp. 9-13, 2017

Online since:

March 2017

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[1] H. Fang, D. Young, and S. Nesic, Elemental sulfur corrosion of mild steel at high concentration of sodium chloride, 17th Int. Corros. Congr., paper No 2592, p.1–16, (2009).

[2] J. Bojes, J. Lerbscher, W. Wamburi, C. Dilley and C. Dilley, Elemntal sulfur in 3-phase sour gas systems- Iscondensate really your alloy?, NACE Int., p.1–22, (2010).

[3] H. Fang, B. Brown, D. Young, and S. Nesic, Investigation of elemental sulfur corrosion mechanisms, NACE Int., paper No. 11398, p.1–13, (2011).

[4] NACE MR0175 / ISO 15156-1 Petroleum and natural gas industries — Materials for use in H2S-containing Environments in oil and gas production, (2001).

DOI: https://doi.org/10.3403/bseniso15156

[5] D. G. Enos and L. L. Scribner, The Potentiodynamic Polarization Scan Technical Report 33, Solarton, Farnborough, UK., p.1–13, (1997).

[6] ASTM-G5-82, Standard reference method for making potentiostatic and potentiodynamic anodic polarisation measurements., Annual book of ASTM standard, pp.122-132, (1983).