Synthesis of titanium orthorhombic alloy using binder jetting additive manufacturing
| Autor: | Igor Polozov, Vadim Sufiiarov, Alexey Shamshurin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Acicular
Materials science Annealing (metallurgy) Mechanical Engineering Alloy Sintering chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Chemical engineering chemistry Mechanics of Materials engineering General Materials Science Orthorhombic crystal system Wetting 0210 nano-technology Titanium Solid solution |
| Zdroj: | Materials Letters. 243:88-91 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2019.02.027 |
| Popis: | The presented work demonstrates the capability of producing Ti-22Al-25Nb parts from Ti, Al, Nb elemental powders using Binder Jetting (BJ) additive manufacturing (AM) method followed by high-temperature reactive sintering and subsequent annealing. The microstructural investigation and phase analysis demonstrate that reactive sintering at 800 °C and 1000 °C results in diffusion of Al into Ti particles forming Ti-Al solid solution and Ti3Al-phase, while sintering at 1100 °C allows Nb diffusion into Ti particles. Microstructural analysis showed that the reactive sintering temperature affects the surface morphology of particles due to different wettability of liquid Al. Annealing at 1400 °C resulted in the formation of B2/β-phase with acicular Ti2AlNb precipitates. The results demonstrate that the used approach can be successfully utilized for the production of Ti-22Al-25Nb parts. |
| Databáze: | OpenAIRE |
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