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Open AccessArticle

Pure Aluminum Structure and Mechanical Properties Modified by Al2O3 Nanoparticles and Ultrasonic Treatment

1
National Research Tomsk State University, Lenin av. 36, 634050 Tomsk, Russia
2
Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, pr. Akademicheskiy 2/4, 634055 Tomsk, Russia
*
Author to whom correspondence should be addressed.
Metals 2019, 9(11), 1199; https://doi.org/10.3390/met9111199
Received: 13 October 2019 / Revised: 5 November 2019 / Accepted: 6 November 2019 / Published: 7 November 2019
(This article belongs to the Special Issue Casting and Solidification of Light Alloys)
This paper examines dispersion hardened alloys based on commercial-purity aluminum obtained by permanent mold casting with the addition of aluminum oxide nanoparticles. Ultrasonic treatment provides a synthesis of non-porous materials and a homogeneous distribution of strengthening particles in the bulk material, thereby increasing the mechanical properties of pure aluminum. It is shown that the increase in the alloy hardness, yield stress, ultimate tensile strength, and lower plasticity depend on the average grain size and a greater amount of nanoparticles in the alloy.
Keywords: aluminum; alumina nanoparticles; microstructure; mechanical properties; elastic limit; strength aluminum; alumina nanoparticles; microstructure; mechanical properties; elastic limit; strength
MDPI and ACS Style

Zhukov, I.A.; Kozulin, A.A.; Khrustalyov, A.P.; Kahidze, N.I.; Khmeleva, M.G.; Moskvichev, E.N.; Lychagin, D.V.; Vorozhtsov, A.B. Pure Aluminum Structure and Mechanical Properties Modified by Al2O3 Nanoparticles and Ultrasonic Treatment. Metals 2019, 9, 1199.

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