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MiniMelt: An instrument for real-time tracking of electron beam additive manufacturing using synchrotron x-ray techniques.
- Source :
-
The Review of scientific instruments [Rev Sci Instrum] 2023 Dec 01; Vol. 94 (12). - Publication Year :
- 2023
-
Abstract
- The development of a sample environment for in situ x-ray characterization during metal Electron Beam Powder Bed Fusion (PBF-EB), called MiniMelt, is presented. The design considerations, the features of the equipment, and its implementation at the synchrotron facility PETRA III at Deutsches Elektronen-Synchrotron, Hamburg, Germany, are described. The equipment is based on the commercially available Freemelt ONE PBF-EB system but has been customized with a unique process chamber to enable real-time synchrotron measurements during the additive manufacturing process. Furthermore, a new unconfined powder bed design to replicate the conditions of the full-scale PBF-EB process is introduced. The first radiography (15 kHz) and diffraction (1 kHz) measurements of PBF-EB with a hot-work tool steel and a Ni-base superalloy, as well as bulk metal melting with the CMSX-4 alloy, using the sample environment are presented. MiniMelt enables time-resolved investigations of the dynamic phenomena taking place during multi-layer PBF-EB, facilitating process understanding and development of advanced process strategies and materials for PBF-EB.<br /> (© 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).)
Details
- Language :
- English
- ISSN :
- 1089-7623
- Volume :
- 94
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- The Review of scientific instruments
- Publication Type :
- Academic Journal
- Accession number :
- 38059765
- Full Text :
- https://doi.org/10.1063/5.0177255