| Autor: |
Nicole Emminghaus, Sebastian Fritsch, Hannes Büttner, Jannes August, Marijan Tegtmeier, Michael Huse, Marius Lammers, Christian Hoff, Jörg Hermsdorf, Stefan Kaierle |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Advances in Industrial and Manufacturing Engineering, Vol 2, Iss , Pp 100040- (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2666-9129 |
| DOI: |
10.1016/j.aime.2021.100040 |
| Popis: |
In laser-based powder bed fusion of metals (PBF-LB/M) the presence of oxygen is known to encourage embrittlement and impair the wetting properties of the substrate and solidified material. Conventionally, inert gases like argon are used to reduce the residual oxygen content within the processing atmosphere. However, especially in terms of reactive materials like titanium the remaining oxygen still causes critical oxidations.In this publication, a new approach for obtaining an oxygen-free processing atmosphere is presented. Thereby the argon shielding gas is doped with reactive monosilane to reduce the residual oxygen content to a range comparable to XHV (Extreme High Vacuum, thermodynamic oxygen activity |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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