Preparation of Zr50Al15−ð�?�¥Ni10Cu25Yð‘�? amorphous powders by mechanical alloying and thermodynamic calculation

Bulletin of materials science

Jing Li²  Woyun Long¹  Anxian Lu³ 

[1] Department of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. China$$School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China$$Department of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. ChinaDepartment of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. China$$School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China$$School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. ChinaDepartment of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. China$$School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China$$;Department of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. China$$Department of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. ChinaDepartment of Applied Physics, Hunan Agricultural University, Changsha 410128, P. R. China$$;School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China$$School of Materials Science and Engineering, Central South University, Changsha 410083, P. R. ChinaSchool of Materials Science and Engineering, Central South University, Changsha 410083, P. R. China$$

关键词: Amorphous alloy;    mechanical alloying;    glass-forming ability;    equivalent free energy.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Amorphous Zr₅₀Al_{15−ð�?��?}Ni₁₀Cu₂₅Y_ð‘�? powders were fabricated by mechanical alloying at a low rotation speed from commercial pure element powders. The beneficial effect of Al partially substituted by Y in Zr₅₀Al₁₅Ni₁₀Cu₂₅ on glass-forming ability was investigated. The as-milled powders were characterized by X-ray diffraction and transmission electron microscopy. The results show that partial substitution of Al by Y can improve the glass-forming ability of Zr₅₀Al₁₅Ni₁₀Cu₂₅ alloy. Thermodynamic calculation of equivalent free energy shows that Zr₅₀Al_13.8Ni₁₀Cu₂₅Y_1.2 alloy has the highest glass-forming ability, which is in good agreement with the report of orthogonal experiments.

【 授权许可】

Unknown