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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...
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Sequencing & Agglomeration of Cycles in Variable Amplitude Underload Spectra: Effects on Surface Crack Growth in a Near-neutral pH Environment
DownloadFall 2018
Stress corrosion cracking (SCC) is one of the biggest integrity threat facing pipelines. Large numbers of SCC defects are detected every year, but scheduling the repair work for these defects is an enormous challenge. Pipeline companies have limited resources to take on the repairs. Therefore the...