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- 1Bending residual stress
- 1CO2 corrosion
- 1Circumferential NNpHSCC
- 1Mill scale
- 1NNpH corrosion fatigue
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Effect of Field Bending and Girth Weld on the Initiation and Early Growth of Near-Neutral pH Circumferential Stress Corrosion Cracking (NNpHCSCC) in Thin-walled Pipeline
DownloadFall 2023
Pipeline failure because of near-neutral pH stress corrosion cracking (NNpHSCC) has been a concern in Canada for over 30 years. Previous studies focused on axial NNpHSCC, which has happened more frequently than circumferential NNPHSCC (C-NNPHSCC). This study focuses on the significance of...
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Full-Scale Investigation of Crack Growth Behaviour Under Variable Pressure Fluctuations in Near-Neutral pH Environments
DownloadSpring 2020
The goal of this investigation was to study hydrogen-facilitated fatigue crack growth behaviour on pre-existing cracks in a full-scale specimen exposed to a near-neutral pH (NNpH) environment. The full-scale specimen used in this study was a 4.77 m segment of NPS 18, SCH 10, X-60 gas transmission...