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arXiv · 0808.1561

Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy

Felipe Barra·Andres Caru·Maria Teresa Cerda·Rodrigo Espinoza·Alejandro Jara·Fernando Lund·Nicolas Mujica
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Abstract

Dislocations in a material will, when present in enough numbers, change the speed of propagation of elastic waves. Consequently, two material samples, differing only in dislocation density, will have different elastic constants, a quantity that can be measured using Resonant Ultrasound Spectroscopy. Measurements of this effect on aluminum samples are reported. They compare well with the predictions of the theory.

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Felipe Barra, Andres Caru, Maria Teresa Cerda, Rodrigo Espinoza, Alejandro Jara, Fernando Lund, Nicolas Mujica. 2008-08-11. Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy. https://doi.org/10.1142/s0218127409025006

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