Abstract
In this study, experimental tests were performed to investigate the strain aging behavior of X100 pipeline steel in service and the resulting enhancement of susceptibility of pipelines to stress corrosion cracking (SCC). Results demonstrated that an immediate rise in temperature during coating application could result in strain aging of X100 steel, as indicated by increasing strength and decreasing elongation as well as the presence of Lüders strain during yielding. The aged steel is associated with an enhanced cracking susceptibility under cathodic protection potentials. It is believed that strain aging is able to enhance hydrogen evolution and the further permeation into steel, resulting in hydrogen-induced SCC of the steel.
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Liang, G., Peng, X., Juan, E.S. et al. Strain Aging of X100 Steel in Service and the Enhanced Susceptibility of Pipelines to Stress Corrosion Cracking. J. of Materi Eng and Perform 22, 3778–3782 (2013). https://doi.org/10.1007/s11665-013-0683-z
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DOI: https://doi.org/10.1007/s11665-013-0683-z