Fig. 2: Unique nanolamellar architecture of the CNL alloy.

a, b Bright-field and dark-field TEM microstructure of the FCC and L12 nano-lamellae within ultrafine grains. c Statistical distributions for thicknesses of the FCC and L12 nano-lamellae. d High-resolution TEM image illustrating the interfacial coherency of the FCC/L12 lamellar boundary. e APT characterization of the elemental partitioning and composition of the FCC and L12 nano-lamellae.