On the formation and nature of quasi-cleavage fracture surfaces in hydrogen embrittled steels

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The Interaction of Dislocations and Hydrogen-vacancy Complexes and Its Importance for Deformation- induced Proto Nano-voids Formation in α-Fe (2015, result): “This proposal is inconsistent with the clear experimental evidence that there is significant plasticity associated with hydrogen embrittlement (Martin et al., 2011a, 2011b; Neeraj et al., 2012).”
Hydrogen embrittlement controlled by reaction of dislocation with grain boundary in alpha-iron (2018, methodology): “…structures can be found just beneath the fracture surfaces of hydrogen-embrittled samples, irrespective of whether they are quasi-cleavage-like or intergranular (Martin et al., 2011a; Martin et al., 2011b; Martin et al., 2012; Robertson et al., 2012; Robertson et al., 2015; Wang et al., 2014).”
Hydrogen assisted crack initiation and propagation in a nickel-based superalloy (2016, background): “[22] suggested that critical hydrogen concentrations might be achieved in the regions with slip localisation and high density of dislocations, and thus hydrogen at these sites may be sufficiently high to cause a significant reduction in lattice cohesive strength, which facilitates the crack initiati”