Effects of Electric Pulse Current on the Aging Kinetics of 2219 Aluminum Alloy

Figure 3

TEM images of 2219 aluminum alloy intracrystalline precipitations aged at 175°C. (a), (c) conventional aged for 12 h, 18 h; (b), (d) LEDPC added aged for 12 h, 18 h.

(a)

(b)

(c)

(d)