Szczegóły publikacji
Opis bibliograficzny
Enhancing vibration damping through controlled porosity in PBF‑LB/M‑manufactured parts: an experimental investigation / Krzysztof Szcześniak, Klara CHOJNACKA, Emilia Grochowska, Andrzej Pawlak, Magdalena Skop // Journal of Materials Science ; ISSN 0022-2461 . — 2026 — vol. 61 iss. 10, s. 6706–6730. — Bibliogr. s. 6728-6730, Abstr. — Publikacja dostępna online od: 2026-02-06. — K. Chojnacka - dod. afiliacja: Silencions Sp. z o. o., Wroclaw, Poland
Autorzy (5)
- Szcześniak Krzysztof
- AGHChojnacka Klara
- Grochowska Emilia
- Pawlak Andrzej
- Skop Magdalena
Dane bibliometryczne
| ID BaDAP | 166230 |
|---|---|
| Data dodania do BaDAP | 2026-03-11 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10853-026-12274-1 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Materials Science |
Abstract
Laser beam powder bed fusion of metals (PBF-LB/M) is an additive manufacturing method that allows for the creation of complex metal components with customized properties. Integrating multiple parts into a single structure reduces weight and improves reliability, but eliminates mechanical joints that contribute to structural damping. This study explores the use of intentionally induced internal porosity to enhance vibration damping in components made from AISI 316L stainless steel using PBF-LB/M technology. It emphasizes the crucial role of process parameters in shaping microstructure and mechanical properties. An experimental approach employing non-contact methods was used to assess damping characteristics, minimizing external interference accurately. The novelty of this approach lies in applying a one-side constrained boundary condition configuration through direct printing on the printer’s build plate, which effectively reduces external interference and improves measurement consistency. The study highlights the impact of boundary conditions and mounting methods on measurement results. Samples produced with the lowest volumetric energy densities (20–28 J/mm3) demonstrate the highest damping capacity, achieving loss factors up to 0.00056 and showing a significant reduction in first-mode resonance frequencies—up to 36% lower than dense counterparts. These findings confirm that lack-of-fusion porosity can substantially improve vibration energy dissipation. Overall, the research demonstrates that controlled porosity can influence the dynamic behavior of additively manufactured components, offering a new strategy for improving performance in applications where vibration damping is critical.
