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The properties of grain boundaries depend on the geometrical parameters that determine the mutual rotation of the crystals, separated by the boundary, and the inclination of the boundary plane. We have proposed a grain boundary classification using the experimental results and the structures obtained by computer simulations. For the [100] rotations of cubic body centred crystals, q, and boundary plane inclination, F, our results are summarized in the diagram below. Certain atomic configurations lead to special boundary properties different from the general boundaries whereas low-angle boundaries are well described by dislocation walls.
Description
Classification of grain boundaries in metals with cubic body centered crystal structure.
Theme is contributed to by
prom. fyz. Václav Paidar, DrSc.
Phone:
+420 266 05 2147
![Non-planar dislocation in the structure C11b dissociated into three planes from the zone <331] in a transition to the (110) slip plane.](/sites/default/files/styles/410x273/public/2020-03/MCM_03.png.webp?itok=plXnkKFU "MCM_03.png")
