Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties
Sensitivity of Nanostructured Iron Metal on Ultrasonic Properties作者机构：不详
出 版 物：《Open Journal of Metal》 (金属学报（美国）)
年 卷 期：2011年第1卷第2期
页 面：34-40页
主 题：Iron Metal Elastic properties Ultrasonic Attenuation
摘 要：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 , and 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 is most ap- propriate to study longitudinal sound waves, while , 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.
维普期刊数据库