•  
  •  
 

International Journal of Minerals, Metallurgy and Materials

Corresponding Author

Jun Li*

Institute of Materials, Shanghai University, Shanghai 200072, China

Keywords

bulk metallic glass; glass forming ability; thermal stability; Y-based alloys

Abstract

The thermal stability and glass-forming ability of Y56- xCe xCo20Al24 ( 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 electronegativity difference of amorphous alloys.

Share

COinS