Characteristics and Mechanism of High pH Stress Corrosion Cracking of Pipeline Steel X70

Abstract:

• Periodical: Key Engineering Materials (Volumes 353-358)
• Pages: 219-222
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.353-358.219
• Online since: September 2007
• Authors: Guang Fu Li, Guo Liang Zhang, Jian Jiang Zhou, Chun Bo Huang, Wu Yang
• Keywords: Electrode Potential, High pH SCC, Pipeline Steel, Stress Corrosion Cracking (SCC)

References

[1] National Energy Board (NEB), Public Inquiry Concerning Stress Corrosion Cracking on Canadian Oil and Gas Pipelines, NEB Report MH-2-95, Calgary, AB, Canada (1996)

DOI: 10.55274/r0012082

[2] R. N. Parkins: CORROSION/2000, Paper No. 00363, NACE International, Houston (2000)

[3] N. Sridhar, D. S. Dunn and A. Anderko: Environmentally Assisted Cracking: Predictive Methods for Risk Assessment and Evaluation of Materials, Equipment, and Structures, ASTM STP 1401, R.D. Kane, Ed., ASTM, West Conshohocken, PA, USA (2000), pp.241-258

DOI: 10.1520/stp10222s

[4] J.Q. Wang, A. Atrens, D.R. Cousens, G. Nockolds, S. Bulcock: Acta Metall. Vol. 46(1998), p.5677

DOI: 10.1016/s1359-6454(98)00246-8

[5] J.Q. Wang, A. Atrens, D.R. Cousens, N. Kinaev: J. Mater. Sci. Vol.34 (1999), p.1721

[6] J. Been, F. King, L. Yang, F.M. Song, N. Sridhar: CORROSION/2005, Paper No. 05025, NACE International, Houston (2005)

[7] R. N. Parkins, Uhlig's Corrosion Handbook, Second Edition, Edited by R. Winston Revie, New York etc, John Wiley & Sons, Inc. (2000), pp.191-300 H-charging density (mA/cm^2) Properties El ong ( ％) RA ( ％) I HI C% 0 10 20 30 40 50 60 70 80 -1600 -1400 -1200 -1000 -800 -600 -400 -200 0 E (mV,SCE) Iscc (%) 30℃ 50℃ EH Fig. 5 Effect of potetnial on high pH SCC susceptibility of X-70 at 30°C and 50°C . Fig. 6 Effect of hydrogen charging density on the properties of X70 in SSRT at ~ 30°C