Abstract
Dispersion strengthened Al - Al₄C₃ material is characterized by high strength properties and good temperature stability of structure. The wrought products have mostly preferred orientation. The pure aluminium is highly strainable and it induces a particularised texture, common to the material and to the used forming process. This work is focused on a study of the texture in extruded Al - Al₄C₃ materials containing 4 and 12 vol. % Al₄C₃ prepared by powder metallurgy. The aim is an analysis of the effect of Al₄C₃ amount on the texture formation during extrusion and analysis of texture evolution at temperature range from 298 K to 773 K and after cooling to ambient temperature. The extrusion process has induced a very low intensity aluminium deformation texture in the Al - 12 vol. % Al₄C₃ alloy, but a strong aluminium deformation texture in the Al - 4 vol. % Al₄C₃ material. The high volume of dispersoid particles consequently efficiently hinders the texture formation during mechanical work. The textures after deformation are in both cases stable up to 773 K.

Key words
dispersion strengthened aluminium, dispersoid, texture, thermal stability

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