Proceedings of 41st Danubia-Adria Symposium Advances in Experimental Mechanics (pp. 3-4)
AUTOR(I) / AUTHOR(S): Tomasz Libura 
, Judyta Sienkiewicz , Zbigniew Nowak , Zbigniew Kowalewski , Alexis Rusinek , George Voyiadjis , Urvashi Gunputh , Paul Wood
DOI: 10.46793/41DAS2025.003L
UVOD / INTRODUCTION:
Nowadays, additive manufacturing (AM) is revolutionizing production, enabling the rapid fabrication of objects in various sizes and shapes, including complex designs such as metallic foam, while significantly reducing material waste. This paper examines the effect of 3D printing parameters (Set A and Set B) on the mechanical behavior of a highly porous random open-cell lattice (HPROCL) in IN718 alloy produced by selective laser melting (PBF-LM). The modified build parameters were applied to reduce manufacturing cost and time while minimizing micro porosity in ligaments by increasing exposure time through reduced laser scanning speed or higher energy density.
Furthermore, the researchers investigate ligament deformation, key stages of collapse and stability, its role in impact resistance, and how microstructure influences the hardening behavior of the HPROCL across a wide range of strain rates. The SEM-EDS elemental distribution analysis carried out on the tested specimens enabled to conclude that the foam printed with modified parameters (Set B) contained a lower content of the Laves phase and a higher amount of the δ-phase, which led to an increase in both static and dynamic compressive behavior of
HPROCL in IN718 alloy.
KLJUČNE REČI / KEYWORDS:
PROJEKAT / ACKNOWLEDGEMENT:
The support of National Agency for Academic Exchange (NAWA, PPI/APM/2018/1/00045/U/001), Poland is greatly acknowledged.
LITERATURA / REFERENCES:
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