PPT Slide
When the misorientation is large (high-angle grain boundary), more complicated structures are involved (as in a configuration of soap bubbles simulating the atomic planes in crystal lattices).
The grain boundaries are therefore:
- where grains meet in a solid.
- transition regions between the neighboring crystals.
- Where there is a disturbance in the atomic packing, as shown in Figure 16-2.
These transition regions (grain boundaries) may consist of various kinds of dislocation arrangements.