  The in-plane anisotropy (IPA) of mechanical properties existed in plate
products is often undesired since it limits the industrial application and
increases the difficulty of material processing. It is thus one of the
important factors which requires strict control during the manufacture of
high-performance aluminum alloy plates. The anisotropic behavior of TiB2/2024Al
composite rolling sheet under different heat treatment is studied in this
article. T4 heat treated specimen shows good isotropy of yield strength and its
texture components are significantly weakened compared with traditional Al
alloys. The evolution of microstructures for T4 specimen was studied. The
submicron TiB2 particles increase the driving force of recrystallization during
rolling process and static recrystallization (SRX) is stimulated, thus induces
texture randomization. Anisotropic behavior of yield strength occurs in
specimen after T3 heat treatment. It is supposed that the difference in the
activation of slip system under different loading direction gives rise to this
anisotropy.
