20.500.12556/DKUM-98157 Process–structure interactions in LPBF-fabricated AlSi10Mg chiral lattices: A statistical study of compressive behavior and auxetic response Additively manufactured lattice structures enable lightweight components with tailorable mechanical response, but their performance is often governed by strut-scale manufacturing effects rather than nominal geometry. In this study, the compressive behavior of chiral auxetic lattice structures fabricated from AlSi10Mg by laser powder bed fusion (LPBF) is investigated using a statistically designed experimental approach. A replicated full-factorial design of experiments is employed to quantify the individual and combined effects of linear energy density, scan strategy, stress-relief heat treatment, and sand blasting on stiffness, strength, energy absorption, and effective Poisson’s ratio. Compression testing combined with digital image correlation reveals distinct deformation modes ranging from brittle, layer-wise collapse to ductile, bending-dominated behavior. The results show that linear energy density and heat treatment primarily control the strength–ductility balance, while scan strategy significantly influences stiffness, energy absorption, and auxetic response through its effect on internal cohesion and deformation localization. In contrast, surface post-processing by sand blasting has only a minor impact compared to LPBF processing parameters. These findings highlight the strong coupling between LPBF process parameters, post-processing, and mechanical response in chiral lattice structures and underline the need for geometry-specific parameter selection when designing auxetic metamaterials for lightweight and energy-absorbing applications. additive manufacturing laser powder bed fusion chiral lattice structures auxetic metamaterials AlSi10Mg compressive behavior dodajalne tehnoologije lasersko fuzijsko taljenje prahu kiralne mrežne strukture avksetični metamateriali kompresijsko obnašanje true false true Elsevier Angleški jezik Slovenski jezik https://www.sciencedirect.com/science/article/pii/S2352492826007713?via%3Dihub Članek v reviji 2026-05-21 09:22:10 2026-05-21 09:22:11 2026-05-22 03:16:12 0000-00-00 00:00:00 2026 0 0 13 str. Vol. 53, [article no.] 115382 Apr. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-01-03 2026-05-12 2026-05-18 539.2 278430979 10.1016/j.mtcomm.2026.115382 2352-4928 https://www.sciencedirect.com/science/article/pii/S2352492826007713?via%3Dihub 1 c8f9cb9f-54e5-11f1-80bc-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=206285 1-s2.0-S2352492826007713-main.pdf 1-s2.0-S2352492826007713-main.pdf 1 3DFEBB542513B7D070DE4A1C9A75A501 ce0e829615ef02d5d093b00cad79dcf54f7f955380deb2e7b2040f129b81d8a5 d9fc793e-54e6-11f1-80bc-00155d580e34 https://dk.um.si/Dokument.php?lang=slv&id=206286 Fakulteta za strojništvo 0 0 0