Figure 4
Crack path crystallography of (a) δ-FG and (b) CG in the presence of H subject to ΔK = 20 MPa m1/2: ECC images for overall aspects are in (a-1,b-1). Inverse pole figure (IPF) maps with respect to the loading axis at the regions A, D, and E are in (a-2,b-2–b-5) with {111} plane traces. The magnified ECC image of region B is shown in (a-4), besides corresponding EDS maps of Nb at the regions A and C are in (a-3,a-4), respectively.
