Figure 5

(a–f) Plan-view of the bi-crystal structure, six snapshots shows the migration of GBs via collective glide of Shockley partial dislocations and their jogs. Yellow hexagon outlines the initial GBs. Three bold lines colored in the red, the brown, and the blue, represent the three Shockley partial dislocations with Burgers vectors b₁, b₂, and b₃, respectively. Three jogs, J₃₁, J₂₃, and J₁₂ are marked in the red circles. (g–i) Disregistry plots of three atomic structures in (b), (e), and (f) respectively, showing shear displacements after the glide of Shockley partial dislocations. The x-axis is along , the y-axis is along , and the z-axis is along [0001]. Atoms are colored according to their excess energy.