Coupled effect of microstructure and topology on the mechanical behavior of Inconel718 additively manufactured lattices

•The microstructure of as-built Inconel718 lattices is formed by randomly oriented fine equiaxed grains populated with cell boundaries containing Nb.•Precipitation leads to a transition in the mechanical behavior of Inconel718 FCC, FCCXYZ, and HCP lattices from bending-dominated to stretch-dominated.•Precipitation leads to a transition in the strut deformation mode from plastic hinging to elastic buckling.•The variations of lattice strength can be related to that of the base material in similar microstructure and testing conditions.