The role of dislocations in ultrasonic attenuation

S. Perring Materials Physics and Metallurgy Division, AERE Harwell, Didcot, Oxon OX 11 OR A, England

R. L. Smith Materials Physics and Metallurgy Division, AERE Harwell, Didcot, Oxon OX 11 OR A, England

B. Hudson Materials Physics and Metallurgy Division, AERE Harwell, Didcot, Oxon OX 11 OR A, England

W. N. Reynolds Materials Physics and Metallurgy Division, AERE Harwell, Didcot, Oxon OX 11 OR A, England

Abstract

Ultrasonic attenuation measurements have been made on high-purity poly-crystalline aluminium in various states of deformation and recovery. The results indicate that the dislocation content of polycrystalline aluminium is a major and separable contribution to the total ultrasonic attenuation.

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The role of dislocations in ultrasonic attenuation

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The role of dislocations in ultrasonic attenuation

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