화학공학소재연구정보센터
Materials Science Forum, Vol.495-497, 919-924, 2005
Neutron diffraction measurements of deformation and recrystallization textures in cold wire-drawn copper
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.