Formation and thermal stability of Cu-Zr-Al-Er bulk metallic glasses with high glass-forming ability

Junying Fu; Hua Men; Shujie Pang; Chaoli Ma; Tao Zhang

doi:10.1016/S1005-8850(07)60104-2

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Junying Fu, Hua Men, Shujie Pang, Chaoli Ma, and Tao Zhang, Formation and thermal stability of Cu-Zr-Al-Er bulk metallic glasses with high glass-forming ability, J. Univ. Sci. Technol. Beijing , 14(2007), No. S1, pp.36-38. https://dx.doi.org/10.1016/S1005-8850(07)60104-2

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Formation and thermal stability of Cu-Zr-Al-Er bulk metallic glasses with high glass-forming ability

摘要: The formation and thermal stabilities of Cu_46.25Zr_46.25-xAl_7.5Er_x (x=0 to 8) bulk metallic glasses (BMGs) were investigated. The addition of a small amount of Er (2at%) for replacing Zr effectively improves the glass-forming ability of Cu_46.25Zr_46.25Al_7.5 alloy, and the glassy rod with a diameter of at least 12 mm can be formed. The glass transition temperature (T_g), temperature interval of supercooled liquid region △T_x (=T_x-T_g), and reduced glass transition temperature T_rg (=T_g/T_l) of Cu_46.25Zr_44.25Al_7.5Er₂ glassy alloy are 699 K, 62 K and 0.607, respectively.

Formation and thermal stability of Cu-Zr-Al-Er bulk metallic glasses with high glass-forming ability

Abstract: The formation and thermal stabilities of Cu_46.25Zr_46.25-xAl_7.5Er_x (x=0 to 8) bulk metallic glasses (BMGs) were investigated. The addition of a small amount of Er (2at%) for replacing Zr effectively improves the glass-forming ability of Cu_46.25Zr_46.25Al_7.5 alloy, and the glassy rod with a diameter of at least 12 mm can be formed. The glass transition temperature (T_g), temperature interval of supercooled liquid region △T_x (=T_x-T_g), and reduced glass transition temperature T_rg (=T_g/T_l) of Cu_46.25Zr_44.25Al_7.5Er₂ glassy alloy are 699 K, 62 K and 0.607, respectively.

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