中文摘要：

采用X射线衍射（XRD）、差示量热（DSC）分析方法研究了Ce-Al-Cu（贫Cu部分）合金相关系及金属玻璃的形成。从Ce-Al-Cu三元系合金在熔铸态时的相关系组成图发现,Ce-Al-Cu金属玻璃形成的成分范围主要集中在CeAl＋Ce3Al＋Ce2AlCu2,Ce3Al＋Ce2AlCu2＋CeCu,Ce3Al＋CeCu＋Ce 3个相区,而相Ce3Al为这3个相区所共有。理论分析认为原子簇堆垛阻挫机制是易形成Ce基金属玻璃和具有很低的玻璃化转变温度的原因,这为过冷液体和金属玻璃（AMPs）形成机制的研究提供了信息和研究方向。

英文摘要：

The phase relationships and glass-forming mechanism of Ce-Al-Cu（Cu-poor part）alloys were studied by means of X-ray diffraction（XRD） and differential scanning calorimetry（DSC）.According to the phase relationships of as-cast alloys in the ternary Ce-Al-Cu system,it was found that the metallic glass forming compositions concentrated manly in 3 three-phase regions,namely,CeAl＋Ce3Al＋Ce2AlCu2,Ce3Al＋Ce2AlCu2＋CeCu,Ce3Al＋CeCu＋Ce.And the compound of Ce3Al was shared by the three-phase regions.An analysis of the metallic glass-forming with the theory of cluster stacking frustration was carried out.It was believed that the atomic cluster stacking frustration mechanism is the main reason of the formation of Ce-based metallic glass and makes the glass transition temperature lower.These observations can be informative for further research on supercooled liquid and amorphous metal（AMPs） study.