Fig. 5: TEM images of the optimized alloy in the DT6 condition.
From: Accelerated discovery of high-strength aluminum alloys by machine learning

a Bright-field image showing intragranular and intergranular precipitates, as well as high-density dislocations. Scale bar, 100 nm. b Bright-field image showing typical deformed microstructure. Scale bar, 2 µm. c and d Bright-field images and corresponding selected area diffraction patterns (SADPs) of Al8Cu4Y and Al20Ti2Y particles, respectively. Scale bars, 1 µm in c, 500 nm in d, and 5 1/nm in the inserted SADPs. e and f HAADF images showing two different morphologies of Al8Cu4Y phase. Scale bars, 2 µm in e, and 200 nm in f.