Modeling the fatigue crack growth of X100 pipeline steel in gaseous hydrogen
RL Amaro, N Rustagi, KO Findley, ES Drexler… - International Journal of …, 2014 - Elsevier
This work proposes a phenomenological fatigue crack propagation (FCP) model for API-5L
X100 pipeline steel exposed to high-pressure gaseous hydrogen. The semi-empirical model
is predicated upon the hypothesis that one of two mechanisms dominate the fatigue crack
growth (FCG) response depending upon the crack extension per cycle (da/dN) and the
material hydrogen concentration. For da/dN between approximately 1× 10− 5 mm/cycle and
3× 10− 4 mm/cycle, fatigue crack growth in hydrogen is markedly increased over that in …
X100 pipeline steel exposed to high-pressure gaseous hydrogen. The semi-empirical model
is predicated upon the hypothesis that one of two mechanisms dominate the fatigue crack
growth (FCG) response depending upon the crack extension per cycle (da/dN) and the
material hydrogen concentration. For da/dN between approximately 1× 10− 5 mm/cycle and
3× 10− 4 mm/cycle, fatigue crack growth in hydrogen is markedly increased over that in …
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