And then a sheet of Al-Mg alloys with and without Sc was manufactured by using these Al-Mg-Sc master alloys, whose microstructure and properties were studied contrastively and whose application was valued.

• 利用研制的中间合金制备了Al-5Mg-Sc系列合金，通过对加钪和不加钪的合金组织与性能的对比研究，对Al-5Mg-Sc合金的应用进行了评价。