SELECTIVE LASER MELTING FOR NB-BASED POWDER ALLOY

1 GONCHAROV Ivan
Co-authors:
1 RAZUMOV Nikolay 1 BORISOV Evgenii 1 SILIN Aleksey 1 POPOVICH Anatoly
Institution:
1 Peter the Great St. Petersburg Polytechnic University, Russia, 9670522@mail.ru
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
1481-1485
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
30 views / 14 downloads
Abstract

The powder of Nb-25Ti-2Cr-2Al-16Si (at%) was obtained by mechanical alloying and plasma spheroidization from elemental powders. The building was performed by SLM 280HL machine on the titanium substrate. The microstructure was analyzed by MIRA Tescan scanning electronic microscope. The XRD was performed by BRUKER D8. The microstructure consists of Nbss+Nb3Si eutectic with several areas of coarse dendrites, corresponds to the Nbss. The microstructure is greatly refined in comparison with casting technologies like VIM.

Keywords: Nb-Si, selective laser melting, additive manufacturing, powder metallurgy
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