Materials Science Forum, Vol.408-4, 1477-1482, 2002
Rolling and annealing texture of 3004 aluminium alloy
The 3004 aluminium alloy used for beverage cans, require stringent material properties and earing behavior of the final sheet is of great importance. Final texture and thereby earing is controlled by deformation and heating processes in a most complicated manner where hot rolling, cold rolling and recrystallization are key issues. The hot rolling, cold rolling and annealing textures of the 3004 aluminium alloys were studied by means of orientation distribution functions (ODFs). The results show that texture in the hot-rolled plate is {100}[uvw] and the rotated cube orientation {100}<011> is the strongest. The intensity of the rotated cube orientation {100}<011> increases with the increase of the reduction The cold rolling textures show a typical copper-type feature and the intensity of deformation texture increases with the increase reduction The final cold rolling textures are composed of S-, Cu- and Bs-cmponents. After isothermal annealing for 2h, the recrystallization textures are different from the deformation ones. The recrystallization textures are mainly composed of Cube-, annealing R/S and copper components. The desired cube texture is the strongest at 400degreesC. The evolution of texture during recrystallization is described in detail and possible origins of various components are discussed.