Influence of Nd and Y on texture of as-extruded Mg–5Li–3Al–2Zn alloy

Resumo

Mg–5Li–3Al–2Zn alloys with the additions of Y and Nd were prepared using induction melting furnace under the atmosphere of pure argon; then they were extruded. The textures of the as-extruded alloys were analyzed by pole figures and electron backscatter diffraction. Results show that the addition of a small amount of Nd can weaken the basal texture. The further increase of Nd content has no corresponding further influence on texture. When a small amount of Y is used to replace Nd, the basal texture can be further weakened and the prismatic slip system can be further activated. In the alloy of Mg–5Li–3Al–2Zn–1.2Y–0.8Nd, the basal textures almost vanish.