Rev. Met. Paris
Volume 93, Number 5, Mai 1996
|Page(s)||667 - 672|
|Published online||18 January 2017|
On the interpretation of acoustic emission during stage III of Cu-Al single crystals deformation
Interprétation de l’émission acoustique observée au cours du stade III de déformation plastique de monocristaux de Cu-Al
Prominent features of acoustic emission (AE) are established during stage III of plastic deformation of the  oriented Cu-9 at. % Al single crystals. The increase of the AE-level, the appearance of typical narrow-band spectral components of about 500 kHz and the lowfrequency oscillations of AE activity with a period of about 6 s are discussed. The interpretation of the phenomenon observed is given on the basis of a concept of the dislocation dipoles dissociation having an avalanche-like character.
© La Revue de Métallurgie 1996
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