Acoustic and Elastic Properties of Cu3Au Alloyin in the Field of High Temperature

Article Preview

Abstract:

The article studies the elastic properties of anisotropy and interatomic anharmonicity in a two-component Cu3Au alloy with positional order-disorder within the high temperature interval of 300 К and 725 К. It provides calculations on velocities of purely transverse and longitudinal elastic waves, elastic moduli (Young’s, shear, adiabatic bulk moduli) and Poisson’s ratios based on the stiffness constants сij(T) of the crystal. Sound velocity values were employed for determining the temperature changes of Grüneisen parameter along the crystallographic directions [100], [110] and [111].

You might also be interested in these eBooks

Info:

Periodical:

Pages:

179-184

Citation:

Online since:

June 2015

Export:

Price:

* - Corresponding Author

[1] V.N. Belomestnykh, E.P. Tesleva, E.G. Soboleva, Maximum Grüneisen constants for polymorph transformations in crystals, J. Technical Physics, 54 (2009) 320-322.

DOI: 10.1134/s1063784209020273

Google Scholar

[2] V.N. Belomestnykh, E.G. Soboleva, Behavior of Poisson's ratio in the crystal Cu2O, J. Applied Mechanics and Materials, 682 (2014) 170-173.

DOI: 10.4028/www.scientific.net/amm.682.170

Google Scholar

[3] M. D. Starostenkov, E. A. Dudnik, Studying order parameters antiphase boundaries in Cu3Au alloy, J. Phase transitions, ordered states and new materials, 4 (2006) 1-4.

Google Scholar

[4] E. Тesleva, T. Belkova, Acoustic and elastic properties of Cu3Au alloy between 4. 2.. 300 К, J. Applied Mechanics and Materials, 682 (2014) 519-524.

DOI: 10.4028/www.scientific.net/amm.682.519

Google Scholar

[5] S. Siegel, The variation of the principal elastic moduli of Cu3Au with temperature, J. Phys. Rev., 57 (1940) 537–545.

Google Scholar

[6] V.N. Belomestnykh, E.G. Soboleva, Acoustic analogs of elasticity theory ratios for determining anisotropic Poisson ratios of cubic monocrystals, 7th International Forum on Strategic Technology (IFOST - 2012), 1 (2012) 499-502.

DOI: 10.1109/ifost.2012.6357527

Google Scholar

[7] G. Leibfried, W. Ludwig, Theory of anharmonic effects in crystals, Moscow, Foreign literature publishers, (1963).

Google Scholar

[8] V. N. Belomestnykh, The acoustical Grüneisen constants of solids, J. Technical Physics Letters, 30 (2004) 91-93.

DOI: 10.1134/1.1666949

Google Scholar