Pham et al. (31) created a polycrystalline lattice superstructure with multiple crystal interfaces, which exhibited shear-banding behavior similar to that of sliding in crystal twins in metallurgy. Lu et al. (32) explored the hardening principle of inclusions hindering dislocation movement and compared it to the strengthening mechanism of dual-phase lattice structure. Local deformation patterns and shear-banding damage mechanisms can be controlled through shear-banding path controllability. Researchers (17, 33) improved platform stress and energy absorption efficiency by suppressing local shear-banding propagation distance via changes in the crystal interface. Wu et al. (34) found that dislocation-free nanocrystals inhibited transfer of local shear-bandings, greatly enhancing material properties. Lattice structure design was inspired by typical defect characteristics of microstructures. Vangelatos et al. (35, 36) significantly enhanced mechanical properties of lattice structures by using contact between adjacent member elements of lattice. Bhuwal et al. (37) controlled local shear-banding evolution through holes introduced with varying sizes, spatial orientations, and topological distribution characteristics into periodic lattice structures. Multi-scale lattice structure calculation and analysis models of various defect types were established in Refs. (38, 39), studying the influence of spatial structural defects on mechanical properties of lattice structures. These failure mechanisms from microstructure deformation behaviors are crucial for designing new lattice structures with excellent mechanical properties.
Please rephrase“Pham et al. [31] designed and fabricated a polycrystalline lattice superstructure composed of a heterogeneous lattice structure with multiple crystal interfaces. It was found that the polycrystalline lattice superstructure formed a...
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