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PREPARATION OF NIAL-FESI COMPOSITES BY POWDER METALLURGY

1 Novák Pavel
Co-authors:
1 Mestek Stanislav 1 Michalcová Alena 2 Skotnicová Kateřina 2 Szurman Ivo
Institutions:
1 Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Czech Republic, EU, panovak@vscht.cz
2 Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, Ostrava-Poruba, Czech Republic, EU
Conference:
32nd International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 17 - 19, 2023
Proceedings:
Proceedings 32nd International Conference on Metallurgy and Materials
Pages:
573-578
ISBN:
978-80-88365-12-9
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2023.4662
Published:
13th June 2023
Metrics:
131 views / 76 downloads
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Abstract

This work deals with the development of the preparation route for the composites with nickel aluminide reinforced by FeSi particles. The optimization of mechanical alloying of individual phases, mixing and consolidation by spark plasma sintering is presented. The composite is developed for the application as a future tool material. As the optimum conditions of mechanical alloying, the milling durations of 4 h and 10 h can be recommended for the synthesis of NiAl and FeSi phases, respectively. The hardness of composites increases with the amount of FeSi phase.

Keywords: Nickel aluminide, iron silicide, composite, mechanical alloying, spark plasma sintering

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