Fig. 6: The calculated strain energy release (GI) as a function of crack extension Δa in Nb45Ta25Ti15Hf15 and NbMoTaW with four different crack orientations, where higher slope corresponds to higher fracture resistance and the changes in slopes serves as an indicator for changes in the dominant fracture mode.
From: Ductility mechanisms in complex concentrated refractory alloys from atomistic fracture simulations
These again are nanoscale R-curves.
