Neutron Diffraction Measurements of Deformation and Recrystallization Textures in Cold Wire-Drawn Copper

Abstract:

The crystallographic texture of electrolytic tough pitch copper has been investigated by neutron diffraction after deformation by cold wire-drawing (reduction of area between 51 and 94 %) and after static recrystallization. The deformation texture characterized by a strong <111> fiber is reinforced with increasing strain, while the volume fraction of <100> fiber is reduced. In turn, we show that the <100> fiber is strongly reinforced after recrystallization when intensity of the <100> maxima increases with the level of deformation. Since the <111> fiber disappears first during annealing, the static recrystallization has been followed “in situ” by measurements of the diffracted intensity evolution in the center of the {111} pole figure. From these experimental data and taking into account the Arrhenius equation, the activation energy of the recrystallization process has been determined for each deformation rate.

• Periodical: Materials Science Forum (Volumes 495-497)
• Pages: 919-926
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.495-497.919
• Online since: September 2005
• Authors: Ph. Gerber, S. Jakani, Marie Helene Mathon, Thierry Baudin
• Keywords: Activation Energy, Copper (Cu), Neutron Diffraction, Recrystallization, Wire-Drawing

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