Analyzing the effects of powder and post-processing on porosity and properties of electron beam melted Ti-6Al-4V
| Autor: | Eric Fodran, Andrea Nicolas, Michael D. Sangid, Ross B. Cunningham, Anthony D. Rollett, John S. Madsen, Elias L. Anagnostou |
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| Rok vydání: | 2017 |
| Předmět: |
crystal plasticity
010302 applied physics electron beam melting Gas porosity Materials science Additive manufacturing 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Synchrotron Crystal plasticity law.invention Crystallography law 0103 physical sciences lcsh:TA401-492 Cathode ray lcsh:Materials of engineering and construction. Mechanics of materials General Materials Science Ti 6al 4v Composite material 0210 nano-technology Porosity X-ray tomography defects |
| Zdroj: | Materials Research Letters, Vol 5, Iss 7, Pp 516-525 (2017) |
| ISSN: | 2166-3831 |
| Popis: | Metal additive manufacturing techniques such as the powder-bed systems are developing as a novel method for producing complex components. This study uses synchrotron-based X-ray microtomography to investigate porosity in electron beam melted Ti-6Al-4V in the as-built and post-processed state for two different powders. The presence of gas porosity in the starting powder was shown to correlate to porosity in the as-built components. This porosity was observed to shrink after a hot isostatic press treatment, but grow following a subsequent heat treatment. Crystal plasticity simulations were used to observe the effects of various observed pore sizes on mechanical behavior under loading. |
| Databáze: | OpenAIRE |
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