V. Klochko, A. Korniyets, I. Kolodiy, O. O. Kondratov, V. Sokolenko, V. Spitsyna, T. M. Tykhonovska, N. A. Yayes
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Ultrasonic Investigation of High-Entropy Al$_{0.5}$CoCrCuFeNi Alloy at Low Temperature
The temperature dependence of the velocity propagation and the change in the attenuation of plane-polarized ultrasonic waves at a frequency of 50 MHz in the high-entropy Al 0.5 CoCrCuFeNi alloy is investigated, using the ultrasonic spectroscopy in the temperature range 77–300 K. As found, the acoustic-characteristics’ anisotropy of the alloy is due to the growth texture. Significant attenuation of ultrasonic waves is revealed. Its temperature dependence is analysed. The effect of annealing on the studied acoustic characteristics is investigated. The estimate of values of the dynamic Young’s modulus, shear modulus, bulk modulus, and Poisson’s ratio is made.
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‘Metallophysics and Advanced Technologies’ or ‘Metallofizika i Noveishie Tekhnologii’ (‘MNT’) publishes original works (regular papers and reviews) not previously published and not being considered for publication elsewhere. The works accepted for publication in ‘MNT’ will not be published elsewhere in the same language without the consent of the Editors and Publisher. It is a condition of acceptance by the Editor of a manuscript for publication that the Publishers acquire automatically the copyright in the manuscript throughout the world.
The journal publishes the new results of experimental and theoretical researches in the physics and technology of metals, alloys, and compounds with metallic properties; reviews of the monographs; information on conferences and seminars; information on the history of metal physics; advertising of new technologies, materials, and devices.
Scope of the Journal:
Electronic Structure and Properties,
Crystal-Lattice Defects,
Phase Transformations,
Physics of Strength and Plasticity,
Metallic Surfaces and Films,
Structure and Properties of Nanoscale and Mesoscopic Materials,
Amorphous and Liquid States,
Interactions of Radiation and Particles with Condensed Matter,
Materials in Extremal Conditions,
Reactor and Aerospace Metals Science,
Medical Metals Science,
New Metallic Materials and Synthetic Metals,
Metal-Containing Smart Materials,
Physical and Technical Bases of Experiment and Diagnostics,
Articles under Discussion.
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