Dependence of Amorphous Formation Ability on Intrinsic Parameters in Dy-Gd-Co-Al Alloys

作者：Luo, Lin; Tian, Rui; Xiao, Xueshan^*

来源：Journal of Materials Science & Technology, 2009, 25(5): 665-668.

• Dy(Gd)-based
• Glass forming ability
• Intrinsic parameters

A series of Dy(Gd)-based bulk amorphous alloy rods were prepared by water-cooled copper mold method Thermal stability and structure of Dy-Gd-Co-Al alloys were investigated by differential scanning calorimetry and X-ray diffraction, respectively The results show that the Dy-Gd-Co-Al alloys have good glass-formation ability, and the Dy31Gd25Co20Al2.1 alloy can be readily cast into full glassy rods up to 5 mm in diameter The glass-forming ability of multicomponent alloys was greatly dependent on their chemical interaction and the equivalent bond parameters among atoms such as equivalent electronegativity difference, equivalent atomic size parameter The Dy (Gd)-based bulk amorphous alloys could be expected as potential functional materials

• 出版日期2009-9
• 单位上海大学