Hydrogen-induced intergranular failure of iron

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Enumeration of the hydrogen-enhanced localized plasticity mechanism for hydrogen embrittlement in structural materials (2019, background): “mentioned in Section 3, recent studies of the micro structure beneath hydrogen-induced intergranular fracture surfaces [55,56] indicate th at ydrogen-enhanced plasticity and the impact”
Hydrogen assisted crack initiation and propagation in a nickel-based superalloy (2016, background): “More importantly, they flagged up that the dislocation substructure in the hydrogen containing material is finer than in the one without hydrogen [24,27,28], which provides further support for the HELP mechanism.”
Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron (2018, background): “The dislocation activities around GBs will eventually yield a well-evolved dislocation structure in the volume of material just beneath the fracture surface for both the quasi-cleavage and intergranular style fracture as observed in many experiments (Martin et al., 2011a; Martin et al., 2011b; Marti”