Figure 2: Surface morphologies and dislocation arrangements of the bicrystals with a TB parallel or perpendicular to the loading direction.
From: Controllable fatigue cracking mechanisms of copper bicrystals with a coherent twin boundary
(a) Slip morphologies with fatigue cracks of the bicrystal with the TB parallel to the loading direction. Scale bar, 50 μm. (b) Dislocation arrangements of the bicrystals with the TB parallel to the loading direction. Scale bar, 5 μm. (c) Slip morphologies with fatigue cracks of the bicrystal with the TB perpendicular to the loading direction. Scale bar, 10 μm. (d) Dislocation arrangements of the bicrystals with the TB perpendicular to the loading direction. Scale bar, 10 μm.
