Nanocrystalline 6061 Al Powder Fabricated by Cryogenic Milling and Consolidated via High Frequency Induction Heat Sintering

Figure 3

Microstructures of the powders of 6061 Al (bright field TEM and selected area diffraction SAD): (a) cryomilled 1 h and (b) cryomilled 15 h.

(a)

(b)