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Keywords: SCC
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Proceedings Papers

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A038, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87338
... Abstract Two pups with SCC colonies were removed from service. The most dominant cracks in the colonies are short and deep. One of the pups had a bulge in the area of the SCC colony. The two pups were subjected to hydrostatic burst tests and detailed post-test metallurgical examination...
Proceedings Papers

Proc. ASME. IPC2022, Volume 1: Pipeline Safety Management Systems; Project Management, Design, Construction, and Environmental Issues; Strain-Based Design and Assessment; Risk and Reliability; Emerging Fuels and Greenhouse Gas Emissions, V001T07A033, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87372
... Abstract Stress Corrosion Cracking (SCC) is a form of cracking caused by interaction of a susceptible material, tensile stress, and a suitable environment. Considering recent SCC failures in pipelines coupled with increasingly stringent regulatory requirements, it is imperative for an operator...
Proceedings Papers

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A048, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87009
... of existing vintage pipelines. These pipelines have inborn flaws such as longitudinal seam weld defects or environmentally assisted defects such as stress corrosion cracking (SCC). Therefore, the need to proactively maintain pipeline integrity and mitigate failure probability has become essential to meeting...
Proceedings Papers

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A004, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87236
... network pipeline integrity SCC causal analysis Proceedings of the 2022 14th International Pipeline Conference IPC2022 September 26-30, 2022, Calgary, Alberta, Canada IPC2022-87236 OVERCOMING CHALLENGES FOR QUANTITATIVE RISK MODELING USING MACHINE LEARNED DATA CORRELATIONS AND PREDICTIVE MODELING...
Proceedings Papers

Proc. ASME. IPC2022, Volume 1: Pipeline Safety Management Systems; Project Management, Design, Construction, and Environmental Issues; Strain-Based Design and Assessment; Risk and Reliability; Emerging Fuels and Greenhouse Gas Emissions, V001T07A005, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-86906
... Abstract This paper discusses a model developed and applied to evaluate the probability of Stress Corrosion Cracking (SCC) failure in a large gas pipeline system spanning approximately 8,500 miles. A machine learning algorithm (neural network) was applied to the system, which has experienced...
Proceedings Papers

Proc. ASME. IPC2022, Volume 2: Pipeline and Facilities Integrity, V002T03A025, September 26–30, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IPC2022-87028
... effectively dealt with by the operational and maintenance changes that were made to manage it. The results of two recent laboratory hydrotests are summarized concerning pups containing SCC colonies, as are the details of forensic analyses of the cracking exposed by that testing. The high-level goals were...
Proceedings Papers

Proc. ASME. IPC2020, Volume 1: Pipeline and Facilities Integrity, V001T03A063, September 28–30, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IPC2020-9578
... morphology and stresses within these areas and how they have been able to reduce conservatism from their baseline assessment with confidence and adopt a plastic collapse approach to accurately predict failure. stress corrosion cracking SCC crack management EMAT full-scale testing GETTING TO KNOW...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 963-967, October 4–8, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IPC2004-0375
... 10 12 2008 The focus of the Enbridge Integrity Management System is to prevent leaks or ruptures caused by all duty-related pipe deterioration including SCC. As with all pipe defect types, ongoing monitoring programs are employed to determine whether SCC has occurred. Where it has...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 133-141, October 4–8, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IPC2004-0280
... 10 12 2008 Stress corrosion cracking (SCC) tests were performed using the pipe section buried in a clay type of soil with the pH adjusted to near-neutral range. Pipe specimens with various sizes of fatigue pre-cracks ahead of artifical notch tips on the outer surface were subjected...
Proceedings Papers

Proc. ASME. IPC2004, 2004 International Pipeline Conference, Volumes 1, 2, and 3, 83-100, October 4–8, 2004
Publisher: American Society of Mechanical Engineers
Paper No: IPC2004-0361
... 10 12 2008 A model is described for predicting the incidence of high-pH SCC on gas pipelines. The model is mechanistic and is based on a film rupture mechanism of crack growth. Based on field pressure cycle data, the model determines the crack tip strain rate and the occurrence of film...
Proceedings Papers

Proc. ASME. IPC2006, Volume 2: Integrity Management; Poster Session; Student Paper Competition, 589-595, September 25–29, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IPC2006-10415
... 07 10 2008 Historically, ruptures in near-neutral pH SCC environments on gas transmission pipelines have been associated with some kind of stress raiser, generally the long-seam weld, corrosion, or dents/gouges. The current work provides an assessment of the effect of dents...
Proceedings Papers

Proc. ASME. IPC2006, Volume 2: Integrity Management; Poster Session; Student Paper Competition, 517-531, September 25–29, 2006
Publisher: American Society of Mechanical Engineers
Paper No: IPC2006-10345
... / University of Alberta R. Sutherby / TransCanada PipeLines Limited ABSTRACT INTRODUCTION A model has been developed to predict crack growth on pipelines from environmentally assisted cracking in near- neutral pH environments (often-termed low-pH stress corrosion cracking (SCC The model is based on the results...