Effect of addition of Zn and Al elements on glass-forming ability and thermal stability of Mg-Cu-Y bulk metallic glasses

摘要：

After substituting partial Cu and Mg with Zn or Al elements for Mg65Cu25Y10 alloy,respectively,the metallic glass plate samples with thickness of 23 mm were prepared by water-quenching,their respective glass-forming ability and thermal stability were studied by using differential thermal analysis (DTA) and X-ray diffraction (XRD).Using Kissinger equation,the activation energies of crystallization of these metallic glasses heated with a constant rate were calculated.The results show that Al element is greatly harmful to the glass-forming ability of Mg-Cu-Y alloys and cannot acquire bulk amorphous alloys; nevertheless,the effect of Zn element addition is indeterminate for various components.The magnitudes of thermal stability are also revealed.

关键词： Mg-based alloy metallic glasses glass-forming ability thermal stability

作者: LI Ye-sheng FU Qun-qiang WU Zi-ping DONG Ding-qian

作者单位: School of Materials and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）