采用X射线衍射技术研究了Al-Fe-Ce合金的非晶结构,发现非晶态合金X射线衍射强度曲线上都存在明显的预峰,合金随铁含量增加,预峰和主峰向大角度偏移;合金随铈含量增加,预峰和主峰向小角度偏移。250℃时,非晶合金出现铝相晶化,而预峰的形状和位置并未发生改变;400℃时,在预峰消失的位置形成多种化合物相。Fe原子大部分存在于预峰所对应的Al-Fe-Ce原子团簇中,而Ce原子大部分无规分布于Al非晶基体中。 The amorphous structure of Al-Fe-Ce alloy was studied by X-ray diffraction. It is found that the pre-peak of X-ray diffraction intensity curve of amorphous alloy exists obviously. Shift; alloy with cerium content increases, the pre-peak and the main peak to a small angle shift. At 250 ℃, the amorphous phase appears to crystallize in the aluminum phase, while the shape and position of the pre-peak does not change. At 400 ℃, a variety of compound phases are formed at the position where the pre-peak disappears. Most of the Fe atoms exist in the Al-Fe-Ce atomic clusters corresponding to the pre-peak, while most of the Ce atoms are randomly distributed in the Al amorphous matrix.