Sos, Marcel ; Meyer, Guillaume ; Durst, Karsten ; Mittelstedt, Christian ; Bruder, Enrico (2023)
Microstructure and mechanical properties of additively manufactured AlSi10Mg lattice structures from single contour exposure.
In: Materials & Design, 2023, 227
doi: 10.26083/tuprints-00023401
Artikel, Zweitveröffentlichung, Verlagsversion
 | Es ist eine neuere Version dieses Eintrags verfügbar. |
Kurzbeschreibung (Abstract)
Metal-based additive manufacturing techniques offer the ability to produce complex, near net shape parts that would be impossible or prohibitively expensive to manufacture via traditional casting and machining methods. Low density lattice structures for lightweight construction are one such example. However, there currently are no well-developed guidelines for designing and reliably manufacturing these structures. Literature on the topic is fragmented and usually only covers a limited aspect of the complex relations between process parameters, microstructure, lattice geometry and mechanical properties. This work covers the edge case of small diameter struts manufactured from AlSi10Mg via Laser Powder Bed Fusion (L-PBF) using the single contour exposure strategy, which is necessary to ensure sufficient geometric accuracy. Various cubic strut-based lattice geometries are manufactured using four laser parameter combinations corresponding to different area energy densities and beam offsets. The influence of process parameters and heat treatment on the microstructure and mechanical properties is investigated. Results show that the microstructure of filigree lattice struts can be tailored by the selection of process parameters, resulting in either uniform or core–shell structures depending on the laser power, while the macroscopic mechanical properties are mainly determined by the lattice geometry and relative density.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2023 |
| Autor(en): | Sos, Marcel ; Meyer, Guillaume ; Durst, Karsten ; Mittelstedt, Christian ; Bruder, Enrico |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Microstructure and mechanical properties of additively manufactured AlSi10Mg lattice structures from single contour exposure |
| Sprache: | Englisch |
| Publikationsjahr: | 2023 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2023 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials & Design |
| Jahrgang/Volume einer Zeitschrift: | 227 |
| Kollation: | 16 Seiten |
| DOI: | 10.26083/tuprints-00023401 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/23401 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (Abstract): | Metal-based additive manufacturing techniques offer the ability to produce complex, near net shape parts that would be impossible or prohibitively expensive to manufacture via traditional casting and machining methods. Low density lattice structures for lightweight construction are one such example. However, there currently are no well-developed guidelines for designing and reliably manufacturing these structures. Literature on the topic is fragmented and usually only covers a limited aspect of the complex relations between process parameters, microstructure, lattice geometry and mechanical properties. This work covers the edge case of small diameter struts manufactured from AlSi10Mg via Laser Powder Bed Fusion (L-PBF) using the single contour exposure strategy, which is necessary to ensure sufficient geometric accuracy. Various cubic strut-based lattice geometries are manufactured using four laser parameter combinations corresponding to different area energy densities and beam offsets. The influence of process parameters and heat treatment on the microstructure and mechanical properties is investigated. Results show that the microstructure of filigree lattice struts can be tailored by the selection of process parameters, resulting in either uniform or core–shell structures depending on the laser power, while the macroscopic mechanical properties are mainly determined by the lattice geometry and relative density. |
| Freie Schlagworte: | AlSi10Mg, Additive manufacturing, Lattice structures, Mechanical properties, Process parameters |
| ID-Nummer: | 111796 |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-234019 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physikalische Metallkunde 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet für Konstruktiven Leichtbau und Bauweisen-KLuB (2023 umbenannt in Leichtbau und Strukturmechanik (LSM)) |
| Hinterlegungsdatum: | 31 Mär 2023 12:12 |
| Letzte Änderung: | 03 Apr 2023 05:31 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Microstructure and mechanical properties of additively manufactured AlSi10Mg lattice structures from single contour exposure. (deposited 31 Mär 2023 12:12) [Gegenwärtig angezeigt]
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