Frank-Kasper相Mg32(Al,Zn)49是与其准晶相相对应的1/1近似相,它具有二十面体壳层密堆结构.研究了在常规凝固条件下化学成分为AlxMg40Zn60x(x=20～45,摩尔分数)合金中Frank-Kasper相的组织形貌.利用光学显微镜、X射线衍射仪及扫描电镜,确定了Frank-Kasper相的组织及成分.结果表明:AlxMg40Zn60-x(x=20～45)合金中均为单相的Frank-Kasper相;随铝含量的增加,其形貌由花瓣状逐渐向"十字架"状组织转变.
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