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Texture-Induced Acoustic Anisotropy due to Compressive Deformation (Effects of Strain-Rate and Temperature)

A texture-induced acoustic anisotropy originated by plastic deformation under compression is investigated for copper and aluminum polycrystalline metals making use of a birefringent effect of a polarized ultrasonic wave to study the effects of strain-rate and temperature in the deformation process. A variation in acoustic anisotropy appears to be influenced by both strain-rate and temperature for copper, but it definitely does not appear for aluminum.