Abstract
The ultrasonic study results for dependence of the elastic wave velocities and second-order elasticity coefficients of the polycrystalline aluminum alloy AMg6 and its nanocomposite n-AMg6/C60 on hydrostatic pressure up to 1.6 GPa have been described. The ultrasonic research has been carried out using a highpressure ultrasonic piezometer based on the piston-cylinder device. The pressure derivatives of the secondorder elastic constants of these materials established in the present study have been compared with the results of the third-order elastic constants measurements of the test alloys using the Thurston–Brugger method. Involving available literature data, we determined the relationships between the pressure derivatives of the second-order elastic constants of the AMg6 alloy and the Mg-content and nanostructuring.
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Original Russian Text © V.M. Prokhorov, E.L. Gromnitskaya, 2018, published in Fizika Tverdogo Tela, 2018, Vol. 60, No. 4, pp. 765–769.
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Prokhorov, V.M., Gromnitskaya, E.L. Pressure Dependences of Elastic Constants of AMg6 Aluminum–Magnesium Alloy and n-AMg6/С60 Nanocomposite Alloy. Phys. Solid State 60, 769–773 (2018). https://doi.org/10.1134/S106378341804025X
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DOI: https://doi.org/10.1134/S106378341804025X