Textural control of BCC/HCP two phase Magnesium alloy with the β-Sc phase

镁合金的常规进展是在HCP Mg相中固溶或沉淀硬化。因此，本文提出了一种新的含β-Sc相的双相镁合金。通过扩散偶和透射电镜观察重新评价了相图。发现在Sc含量为15at%Sc时，Mg-22at%Sc合金中存在β-Sc相，并通过铸造获得了细小的两相织构。该合金在强度-延展性的平衡方面比常规的镁合金更优异。

Conventional progress of Mg alloys is the solution or precipitation hardening in HCP Mg phase. So, in this work, I suggested the new two-phase Mg alloy withβ-Sc phase. I reappraised the phase diagram by diffusion couples and TEM observation. And I found that β-Sc phase exists in the lower Sc content at 15at%Sc. The fine two-phase texture is obtained in Mg-22at%Sc by casting. This alloy has more excellent in balance of strength-ductility than conventional Mg alloys.