Accession Number:

AD0612160

Title:

THE RECOVERY OF THE ULTRASONIC ATTENUATION IN COPPER SINGLE CRYSTALS FOLLOWING SMALL PLASTIC DEFORMATION,

Personal Author(s):

Corporate Author:

WATERVLIET ARSENAL N Y

Report Date:

1962-01-01

Abstract:

When a metal undergoes small plastic deformation, there is a change in its apparent Youngs Modulus and internal friction. Both of these quantities recover following the deformation. This experiment was made to study the decrease of ultrasonic attenuation in copper single crystals following small plastic deformation. The change in the attenuation of an ultrasonic wave in a stressed single crystal does not take place smoothly. This work indicates that more than one recovery process is involved, and that the most clearly measured process has an activation energy of 1.5ev.

Supplementary Note:

Also included in Proceedings of the 1964 Army Science Conference, United States Military Academy, West Point, N. Y., 17-19 Jun 64, Volume I, AD-611 432.

Pages:

0017

Communities Of Interest:

File Size:

0.00MB

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