Thermal stability and glass-forming ability of Y-Ce-Co-Al bulk metallic glasses

被引：0
|
作者：
Jun Li
机构：
来源：
International Journal of Minerals,Metallurgy and Materials | 2007年 / S1期
基金：
中国国家自然科学基金;
关键词：
bulk metallic glass; glass forming ability; thermal stability; Y-based alloys;
D O I：
暂无
中图分类号：
TG139.8 [];
学科分类号：
080502 ;
摘要：
The thermal stability and glass-forming ability of Y56-xCexCo20Al24 (x=15, 20, 25, 28, 38, 41, 44) bulk metallic glasses with a diameter of 5 mm were investigated by differential scanning calorimetry and X-ray diffraction. The results show that the thermal stability of the alloys decreases with the addition of Ce. It has the best glass-forming ability when x=25, whose calculated values can reach about 30 mm in diameter. The effect of Ce element could be explained on the view of Miedema’s theory and elec- tronegativity difference of amorphous alloys.
引用
收藏
页码：23 / 25
页数：3
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