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

Jun Li; Xueshan Xiao; Yuanda Dong

doi:10.1016/S1005-8850(07)60101-7

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Jun Li, Xueshan Xiao, and Yuanda Dong, Thermal stability and glass-forming ability of Y-Ce-Co-Al bulk metallic glasses, J. Univ. Sci. Technol. Beijing , 14(2007), No. S1, pp.23-25. https://dx.doi.org/10.1016/S1005-8850(07)60101-7

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

摘要: The thermal stability and glass-forming ability of Y_56-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.

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

Abstract: The thermal stability and glass-forming ability of Y_56-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.

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