Figure 2
From: Hybrid nanostructured aluminum alloy with super-high strength

Microstructures of the hot-pressed Al84Ni7Gd6Co3 alloys. (a) Optical micrograph image of sample HP2 showing the inter-particle area. (b) Bright-field TEM image of triple inter-particle area. (c) High-resolution TEM image of interface between the consolidated particles. (d–f) SEM BSE images of sample HP2 showing fine and coarse precipitate regions.