Influence of process gas during powder bed fusion with laser beam of Zr-based bulk metallic glasses
| Autor: | Maximilian Frey, Gerd Witt, Ralf Busch, Jan Wegner, Stefan Kleszczynski |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Diffraction
0209 industrial biotechnology Work (thermodynamics) Fusion Materials science Amorphous metal 02 engineering and technology Calorimetry Bending 010501 environmental sciences Laser 01 natural sciences law.invention 020901 industrial engineering & automation Flexural strength law General Earth and Planetary Sciences Composite material 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Procedia CIRP. 94:205-210 |
| ISSN: | 2212-8271 |
| DOI: | 10.1016/j.procir.2020.09.039 |
| Popis: | Zr-based bulk metallic glasses offer a unique combination of hardness, high strength, and high elastic limits. Yet, manufacturable size and complexity are limited due to the required cooling rates. Short laser-material interaction times together with layer-wise and selective energy input allows the laser powder bed fusion process to largely overcome those restrictions. Still, the complex process-material interactions inhere numerous uncertainties. In the present work, additively manufactured Zr-based bulk metallic glasses produced under three different process gases are investigated by calorimetry, x-ray diffraction, and bending tests. A strong dependence between the thermophysical properties, flexural strength, and the applied atmosphere is found. |
| Databáze: | OpenAIRE |
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