Joshua Hoschke, Md Fahdul Wahab Chowdhury, Maximilian Roethig, Clotario V. Tapia-Bastidas, Jeffrey Venezuela, Yilei Shu, Evan Gray, Milos B. Djukic, Tom Depover, Kim Verbeken, Andrej Atrens
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The Influence of Subcritical Annealing and Cold Working on the Hydrogen Embrittlement Susceptibility of X65 D Pipeline Steel
This study investigated the effect of subcritical heat treatment and cold work on the hydrogen embrittlement (HE) susceptibility of the X65 D pipeline steel, representative of the Dampier-Bunbury Natural Gas Pipeline (DBNGP). Specimens were subjected to sub-critical annealing at 200°C, 400°C, or 600°C for 2 h or cold drawn to 5% reduction in area. Linearly increasing stress tests (LISTs) indicated subcritical annealing reduced strength and increased ductility, while cold working increased strength and decreased ductility. Hydrogen charging reduced the ductility of all specimens. Both subcritical annealing and cold working decreased somewhat the degree of HE. This was attributed to both treatments stabilising the dislocation distribution which possibly reduced the severity of hydrogen-enhanced localised plasticity (HELP). The novelty of this study lies in the evaluation of practical production changes and their influence on the HE of this steel.
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Materials and Corrosion is the leading European journal in its field, providing rapid and comprehensive coverage of the subject and specifically highlighting the increasing importance of corrosion research and prevention.
Several sections exclusive to Materials and Corrosion bring you closer to the current events in the field of corrosion research and add to the impact this journal can make on your work.
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