| Autor: |
Panin, Alexey, Kazachenok, Marina, Kazantseva, Lyudmila, Martynov, Sergey, Korchagin, Michail |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2019, Vol. 2167 Issue 1, p020263-1-020263-5, 5p, 3 Diagrams, 1 Graph |
| Abstrakt: |
Microstructure and phase composition of the titanium matrix composite made from a pre-mixed powder blend of Ti–6Al–4V+TiB2 were studied. High energy planetary ball milling method was used both to obtain TiB2 powder and to mix Ti–6Al–4V matrix composite powder with 5 wt.% TiB2. Electron beam melting technology was used to build the parts of the titanium metal matrix composites. To modify the microstructure of additive manufactured TiB2/Ti–6Al–4V sample their surface layer was subjected to one-pass electron beam melting. It was shown that the microstructure of 3D-printed TiB2/Ti–6Al–4V sample consists of equiaxial prior β grains of approximately 200 µm in size with the acicular α phase. TiB phase formation in the as-build titanium matrix composite was found. Subsequent electron beam surface treatment decreased in the width of acicular α phase and increased in the volume fraction of β phase in the titanium matrix composite. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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