Materials Science Forum, Vol.408-4, 631-636, 2002
Rolling and annealing textures of dispersion strengthened copper strips
The evolutions of the rolling and annealing textures of boron added alumina dispersion strengthened copper strips have been studied on both macroscopic and microscopic scales. The textures of the rolled state were characterized by beta-fiber, which runs from the Copper orientation {112}<111> over the S orientation {123}<634> to the Brass orientation {011}<211> in the Euler orientation space, with the intensities in the S and the Brass components being higher than the Copper component. The Brass component was attributed to a high strain hardening rate of the alloy. When annealed at 1123K, the rolled specimens underwent recrystallization, with recrystallizaton texture being approximated by {112}<312>. At the initial stage of annealing, {hk0}<001> oriented grains also emerged but their growth stagnated. The recrystallization texture seems to originate from the superposition of the S component {123}<634> and {236}<385>, which are originated from the S and the Brass components respectively in the deformed state. The large particles did not play an important role in determining the rolling and the recrystallization textures.