Research Article
Thermal Stability of Cryomilled Al-Mg-Er Powders
Figure 15
TEM images of the 0.5Er powders after various annealing: nanocrystalline regions after annealing at 400°C (a); the onset of abnormal grain growth at 450°C (b); grain growth at 500°C (c) with corresponding diffraction pattern (d). Nanocrystalline α-Al and MgAl2O4 are indicated by the blue and red arcs, respectively.
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