Details
| Originalsprache | Englisch |
|---|---|
| Fachzeitschrift | Advanced engineering materials |
| Publikationsstatus | Angenommen/Im Druck - 2025 |
Abstract
Additive manufacturing of magnesium alloys shows great potential for producing patient-specific resorbable implants or lightweight parts. However, due to the reactive behavior, especially in the laser-based powder bed fusion (PBF-LB) fabrication process, the processing window to manufacture almost pore-free parts is narrow compared to other materials such as titanium or steel. This article investigates optimal processing conditions for the PBF-LB/M of WE43. To reduce the reactivity of the magnesium melt by limiting the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the argon inert gas is investigated. Furthermore, long-duration heat treatments are investigated in the range of 250–350 °C for 48 h. This study evaluates the impact of both methods on mechanical properties and microstructure. Although hydrogen seems to have no significant influence on the relative density, the microstructure, and the phase composition, it can slightly increase the tensile strength and elongation at break in the as-built state. A heat treatment of 250 °C can increase the elongation at the break without impeding the tensile strength.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Allgemeine Materialwissenschaften
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
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in: Advanced engineering materials, 2025.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Influence of a Hydrogen Addition to the Inert Gas and Subsequent Heat Treatments on the Microstructure and Mechanical Properties of Magnesium WE43 Fabricated by PBF-LB/M
AU - Abel, Arvid
AU - Breitbach, Elmar Jonas
AU - Holländer, Hannes
AU - Müller, Michael
AU - Griemsmann, Tjorben
AU - Klose, Christian
AU - Hermsdorf, Jörg
AU - Maier, Hans Jürgen
AU - Kaierle, Stefan
AU - Overmeyer, Ludger
N1 - Publisher Copyright: © 2025 The Author(s). Advanced Engineering Materials published by Wiley-VCH GmbH.
PY - 2025
Y1 - 2025
N2 - Additive manufacturing of magnesium alloys shows great potential for producing patient-specific resorbable implants or lightweight parts. However, due to the reactive behavior, especially in the laser-based powder bed fusion (PBF-LB) fabrication process, the processing window to manufacture almost pore-free parts is narrow compared to other materials such as titanium or steel. This article investigates optimal processing conditions for the PBF-LB/M of WE43. To reduce the reactivity of the magnesium melt by limiting the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the argon inert gas is investigated. Furthermore, long-duration heat treatments are investigated in the range of 250–350 °C for 48 h. This study evaluates the impact of both methods on mechanical properties and microstructure. Although hydrogen seems to have no significant influence on the relative density, the microstructure, and the phase composition, it can slightly increase the tensile strength and elongation at break in the as-built state. A heat treatment of 250 °C can increase the elongation at the break without impeding the tensile strength.
AB - Additive manufacturing of magnesium alloys shows great potential for producing patient-specific resorbable implants or lightweight parts. However, due to the reactive behavior, especially in the laser-based powder bed fusion (PBF-LB) fabrication process, the processing window to manufacture almost pore-free parts is narrow compared to other materials such as titanium or steel. This article investigates optimal processing conditions for the PBF-LB/M of WE43. To reduce the reactivity of the magnesium melt by limiting the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the argon inert gas is investigated. Furthermore, long-duration heat treatments are investigated in the range of 250–350 °C for 48 h. This study evaluates the impact of both methods on mechanical properties and microstructure. Although hydrogen seems to have no significant influence on the relative density, the microstructure, and the phase composition, it can slightly increase the tensile strength and elongation at break in the as-built state. A heat treatment of 250 °C can increase the elongation at the break without impeding the tensile strength.
KW - additive manufacturing
KW - heat treatments
KW - hydrogen
KW - laser-based powder bed fusion
KW - magnesium
KW - microstructure
KW - WE43
UR - http://www.scopus.com/inward/record.url?scp=85218675548&partnerID=8YFLogxK
U2 - 10.1002/adem.202402704
DO - 10.1002/adem.202402704
M3 - Article
AN - SCOPUS:85218675548
JO - Advanced engineering materials
JF - Advanced engineering materials
SN - 1438-1656
ER -