Fig. 4: A “banana plot” of fracture toughness as a function of the yield strength of various classes of materials3,4,5.

The nano-bridged honeycomb cellular structure formed by L-PBF 3D printing is stronger and tougher than both cryogenic steels and the recently developed fcc class of - and medium-entropy alloys produced by conventional methods. This plot showcases the excellent combination of strength and fracture toughness of the additively manufactured Al0.5CrCoFeNi.