^pof;
Materials;
Science;
and;
Engineering,;
Chongqing;
University,;
Chongqing;
400045,;
China;
^pEngineering;
Research;
Center;
for;
Magnesium;
Alloys,;
Chongqing;
University,;
Chongqing,;
400044,;
China;
半连续铸造; 合金锭; 铈元素; 组织; 扫描电子显微镜; 镁; X射线衍射仪; 细化效果;