Texture evolution during indirect extrusion of cylindrical profiles of an AlSiMgMn
aluminium alloy was investigated in the present work. The effect of extrusion temperature
on texture development, through-thickness texture variations and texture variations
along the length of the extruded profiles were investigated. In all cases a combined 〈100〉
and 〈111〉
fibre texture developed. Generally, the 〈111〉
fibre was sharper than the 〈100〉
fibre. The texture evolution was rather similar along the length of the profile, while the
variations through the thickness were considerable. In a region midways between the
centre and the surface of the profiles, the 〈100〉
fibre was weakened, and in the surface
regions the two fibres were significantly rotated. The texture measurements showed a
strong dependence on extrusion temperature, in the sense that the higher the temperature,
the sharper the 〈100〉
fibre texture. The influence of texture variations on formability were
also investigated.
