Microstructural characterization and comparison of Ti-6Al-4V manufactured with different additive manufacturing processes
| Autor: | M. Neikter, P. Åkerfeldt, R. Pederson, M.-L. Antti, V. Sandell |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Fusion Materials science Mechanical Engineering 02 engineering and technology Lath engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Grain size Characterization (materials science) Metal Mechanics of Materials visual_art 0103 physical sciences visual_art.visual_art_medium engineering General Materials Science Grain boundary Composite material 0210 nano-technology Deposition (law) |
| Zdroj: | Materials Characterization. 143:68-75 |
| ISSN: | 1044-5803 |
| DOI: | 10.1016/j.matchar.2018.02.003 |
| Popis: | In this work, the microstructures of Ti-6Al-4V manufactured by different additive manufacturing (AM) processes have been characterized and compared. The microstructural features that were characterized are the α lath thickness, grain boundary α (GB-α) thickness, prior β grain size and α colony size. In addition, the microhardnesses were also measured and compared. The microstructure of shaped metal deposited (SMD) Ti-6Al-4V material showed the smallest variations in α lath size, whereas the material manufactured with laser metal wire deposition-0 (LMwD-0) showed the largest variation. The prior β grain size was found to be smaller in material manufactured with powder bed fusion (PBF) as compared with corresponding material manufactured with the directed energy deposition (DED) processes. Parallel bands were only observed in materials manufactured with DED processes while being non-present in material manufactured with PBF processes. |
| Databáze: | OpenAIRE |
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