OJMetal  Vol.1 No.2 , December 2011
Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties
Abstract: The present investigation is focused on the influence of the nanocrystalline structure of pure iron metal on the ultrasonic properties in the temperature range 100 - 300 K. The ultrasonic attenuation due to phonon- phonon interaction and thermoelastic relaxation phenomena has been evaluated for longitudinal and shear waves along <100>, <110> and <111> crystallographic directions. The second-and third-order elastic constants, ultrasonic velocities, thermal relaxation, anisotropy and acoustic coupling constants were also com- puted for the evaluation of ultrasonic attenuation in this temperature scale. The direction <111> is most ap- propriate to study longitudinal sound waves, while <100>, <110> direction are best to propagate shear waves due to lowest values of attenuation in these directions. Other physical properties correlated with obtained results have been discussed.
Cite this paper: nullA. Gupta, A. Gupta, D. Singh and S. Tripathi, "Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties," Open Journal of Metal, Vol. 1 No. 2, 2011, pp. 34-40. doi: 10.4236/ojmetal.2011.12005.

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