fig5

Figure 5. ECCI images and EDS maps of the FZ before and after cyclic loading at 4.2 K: (A) FZ before fatigue, (A₁) the magnified image in dash rectangle in (A), (A₂) to (A₄) the EDS elemental distribution maps corresponding to (A₁), (A₅) the magnified image in dash rectangle in (A) showing the dislocations, (B) FZ after fatigue, (B₁) the magnified image in yellow rectangle in (B), (B₂) to (B₄) the EDS elemental distribution maps corresponding to (B₁), (B₅) the magnified image in dash rectangle in (B) showing the dislocations. EDS: Energy dispersive spectroscopy; ECCI: electron channeling contrast imaging; FZ: fusion zone.