Anisotropy of Grain Boundary Migration Observed in Situ by Synchrotron Radiation
Grain boundary motion was studied in situ at elevated temperatures by x-ray topography using synchrotron radiation. In addition to the position of grain boundary, other crystal defects that may interact with the moving boundary were observed simultaneously. Two types of bicrystals with the  rotation axis were selected for the experiments, the first one with a high coincidence S5 misorientation of about 37° and the other one with no coincidence of two crystals for the misorientation of 45°. The geometrical differences between chosen bicrystals are examined and attention is also paid to faceting – local orientations of the boundary plane.
B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot
V. Paidar et al., "Anisotropy of Grain Boundary Migration Observed in Situ by Synchrotron Radiation", Materials Science Forum, Vols. 467-470, pp. 911-916, 2004