Figure 2: TEM images of pre
compressed T6 Al7075 alloy. A) Linear band of GP zones. B) Cluster of GP
zones. C) and D) Higher magnification TEM images of GP zone clusters showing the coherent interface between
GP zones and Al matrix E and F ) Bright field TEM image of η phase MgZn 2 precipitate . Scale bars are 25 nm
for A C , E and F, and 10 nm for D
