MECHANICAL PROPERTIES OF EXTRUDED MIXED COMPONENTS BASED ON ALUMINUM POWDERS AND TERNARY ALUMINUM-CONTAINING INTERMETALLIC COMPOUNDS SYNTHESIZED BY VARIOUS METHODS

1 TROTSKY Mikhail
Co-authors:
1 PETROVICH Sergey 1 ZAMOZDRA Maxim
Institution:
1 Peter the Great St. Petersburg polytechnic university, St.Petersburg, Russian Federation, m_trotsky.ru@mail.ru
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
1030-1036
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
Published:
27th July 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
421 views / 326 downloads
Abstract

This work is devoted to the study of the synthesis of various ternary intermetallic compounds based on aluminum in two alternative ways - self-propagating high-temperature synthesis (SHS) and mechanosynthesis (MS) and subsequent hot extrusion (HE) of pure aluminum powder mixtures as a matrix and the above-mentioned TIM as a hardening additive. Mechanical tensile tests showed an increase in tensile strength by 3.3 - 9.7% rel. (Except for one specimen, which stands out from the others) and an increase in microhardness by 9.3 - 49.1%. The microstructure analysis shows a uniform distribution of hardening particles over the matrix volume, which indicates a high uniformity of the distribution of TIM based on aluminum in the aluminum matrix.

Keywords: Hot extrusion of aluminum, intermetallic compounds, dispersed hardening, mechanosynthesis, powder metallurgy

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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