Hydrogen trapping energy levels and hydrogen diffusion at high and low strain rates (~105 s−1 and 10−7 s−1) in lean duplex stainless steel

Based on our experimental studies we developed an analytical model for hydrogen trapping. We have found that the strain rate has a direct influence on both hydrogen diffusion and hydrogen potential trapping sites. During deformation processes created at low strain rates (~10−7 s−1) hydrogen has enough time to migrate with dislocations from deeper potential trapping sites to lower potential trapping sites.