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Stress Corrosion Cracking of Linepipe Steels in Near-Neutral pH Environment: A Review of the Effects of Stress
Zheng W, Sutherby R, Revie RW, Tyson WR, Shen G


Pages: 11    Published: Jan 2000


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Source: STP1401-EB


Abstract
Stress corrosion cracking (SCC), a form of environment-assisted cracking, has caused 24 major pipeline failures in the Canadian oil and gas pipeline system. The role of stress in the SCC of linepipe steels in near-neutral pH environment, as in other SCC systems, is complex. In this paper, the effects of stress on the development of both axial cracking and circumferential cracking are reviewed. The long-term beneficial effect of compressive stress introduced by hydrostatic testing is also discussed.


Keywords:
Pipeline SCC, local stress, nominal stress, pressure fluctuation, time rate of J, axial cracking, circumferential cracking, ground movement, low-temperature creep, hydrogen, hydrostatic test, crack retardation, compressive residual stress

Paper ID: STP10238S
Committee/Subcommittee: G01.06
DOI: 10.1520/STP10238S
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