Crystallization and microstructure evolution of amorphous Al85Y4Nd4Ni7 alloy

被引：0
|
作者：
WU Wei
机构：
来源：
RareMetals | 2004年 / 04期
关键词：
<Keyword>amorphous alloys; Al85Y4Nd4Ni7; alloy; rapid solidification; crystallization behavior;
D O I：
暂无
中图分类号：
TG115 [金属的分析试验（金属材料试验）];
学科分类号：
080502 ;
摘要：
The mixture model of Al85Y4Nd4Ni7 alloy in which a partially crystallized amorphous alloy is regarded as a nanocomposite of an Al nanoparticle and a remaining amorphous matrix is presented. Its evolution in the process of crystallization has been investigated by differential scanning calorimetry (DSC), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Mainly amorphous structure with α-Al nanocrystals embedded in the amorphous matrix has been revealed by melt spirting the alloy. Crystallization is showed to occur in three stages: (1) crystallization of amorphous alloy and formation of AlNiY, AlNdNi and unknown crystalline phases, (2) formation of A13Y and Al3Nd, and (3) formation of Al3Ni.
引用
收藏
页码：326 / 329
页数：4
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