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TECHNICAL PAPERS

Mechanisms of High-pH and Near-Neutral-pH SCC of Underground Pipelines

[+] Author and Article Information
John A. Beavers, Brent A. Harle

CC Technologies, Dublin, OH 43016

J. Offshore Mech. Arct. Eng 123(3), 147-151 (Mar 21, 2001) (5 pages) doi:10.1115/1.1376716 History: Received March 02, 1999; Revised March 21, 2001
Copyright © 2001 by ASME
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References

Wenk, R. L., 1974, “Field Investigation of Stress Corrosion Cracking,” 5th Symposium on Line Pipe Research, American Gas Association, Inc., Arlington, VA, Catalog No. L30174, Paper No. T.
Justice, J. T., and Mackenzie, J. D., 1988, “Progress in the Control of Stress Corrosion Cracking in a 914 mm O.D. Gas Transmission Pipeline,” Proc. NG-18/EPRG Seventh Biennial Joint Technical Meeting on Line Pipe Research, Pipeline Research Committee of the American Gas Association, Arlington, VA, Paper No. 28.
Sutcliffe,  J. M., Fessler,  R. R., Boyd,  W. K., and Parkins,  R. N., 1972, “Stress Corrosion Cracking of Carbon Steel in Carbonate Solutions,” Corrosion (Houston), 28, pp. 313–320.
Koch, G. H., Beavers, J. A., and Berry, W. E., 1985, “Effect of Temperature on Stress-Corrosion Cracking of Precracked Pipeline Steels,” NG-18 Report No. 148, American Gas Association, Arlington, VA, Catalog No. L51491.
Parkins, R. N., 1974, “The Controlling Parameters In Stress Corrosion Cracking,” 5th Symposium on Line Pipe Research, American Gas Association, Arlington, VA, Catalog No. L30174, Paper U.
Barlo, T. J., 1979, “Stress-Corrosion Cracking Steel Susceptibility, ”6th Symposium on LinePipe Research, American Gas Association, Arlington, VA, Catalog No. L30175, Paper P.
Beavers, J. A., and Parkins, R. N., 1986, “Recent Advances in Understanding The Factors Affecting SCC of Pipe Steels,” 7th Symposium on Line Pipe Research, American Gas Association, Inc., Catalog No. L51595, p. 25-1.
Beavers, J. A., Christman, T. K., and Parkins, R. N., 1987, “Some Effects of Surface Condition on the Stress Corrosion Cracking of Line Pipe Steel,” CORROSION/87, NACE International, Katy, TX, Paper No. 178.
Beavers, J. A., Parkins, R. N., and Berry, W. E., 1985, “Test Method for Defining Susceptibility of Pipeline Steels to Stress Corrosion Cracking,” American Gas Association, Arlington, VA, NG-18 Report Number 146, Catalog No. L-51484.
Beavers, J. A. and Thompson, N. G., 1988, unpublished research performed at CC Technologies for TransCanada Pipelines Limited.
Parkins,  R. N., Blanchard,  W. K., and Delanty,  B. S., 1994, “Transgranular Stress Corrosion Cracking of High-Pressure Pipelines in Contact with Solutions of Near Neutral pH,” Corrosion (Houston), 50, No. 5, pp. 394–408.
Harle, B. A., Beavers, J. A., and Jaske, C. E., 1994, “Low-pH Stress Corrosion Cracking of Natural Gas Pipelines,” CORROSION/94, NACE International, Katy, TX, Paper No. 242.
Harle, B. A., Beavers, J. A. and Jaske, C. E., 1995, “Mechanical and Metallurgical Effects on Low-pH Stress Corrosion Cracking of Natural Gas Pipelines,” CORROSION/95, NACE International, Katy, TX, Paper No. 646.
Anonymous, 1992, “TransCanada PipeLines Responses to National Energy Board Information Requests Regarding TransCanada Pipelines Maintenance Program and Stress Corrosion Cracking,” National Energy Board Inquiry Concerning Stress Corrosion Cracking, Proceeding MHW-1-92, National Energy Board of Canada, Calgary, Alberta, Canada.
Jones, R. H. and Ricker, R. E., 1992, “Mechanisms of Stress-Corrosion Cracking,” Stress Corrosion Cracking, ed., R. H. Jones, ASM International, Materials Park, OH, pp. 1–40.
Johnson, J. T., Durr, C. L., Beavers, J. A., and Delanty, B. S., “Effects of O2 and CO2 on Near-Neutral pH Stress Corrosion Crack Propagation,” CORROSION/2000, NACE International, Katy, TX, Paper No. 00356.
Okada, H., 1977, “Stress Corrosion Cracking and Hydrogen Cracking of Structural Steels,” Stress Corrosion Cracking and Hydrogen Embrittlement of Iron Base Alloys, Proc. Conference, Firminy, France, June, National Association of Corrosion Engineers, Houston, TX, NACE-5, pp. 124-134.
Schmidt, G., 1983, “Fundamental Aspects of CO2 Corrosion,” Corrosion/83, NACE International, Katy, TX, Paper No. 43.
Anonymous, 1996, “Public Inquiry Concerning Stress Corrosion Cracking on Canadian Oil and Gas Pipelines”, Report of the Inquiry, MH-2-95, National Energy Board of Canada, Calgary, Alberta, Canada, Nov.

Figures

Grahic Jump Location
Potentiodynamic polarization curves for mild steel at 90°C in 1N Na2CO3–1N NaHCO3 at two scan rates, showing the potential range over which SCC occurs; after 5
Grahic Jump Location
Potential – pH region where SCC was found for line pipe steels in carbonate-bicarbonate solutions at 75°C; after 5
Grahic Jump Location
Anodic potentiodynamic polarization curve for X-65 line pipe steel at 35°C in a simulated near-neutral pH cracking electrolyte (NS4) sparged with gas containing 5 percent CO2–95 percent N2; scan rate 0.17 mV/s; after 10

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