The influence of casting currents on the thermal stability of the Cu 36 Zr 48 Al 8 Ag 8  amorphous alloy | Zendy

Li Xiaoyun | Zendy; Shen Yuehua | Zendy; Cui Xiao | Zendy; Zhu Pantuo | Zendy; Zhang Qidong | Zendy; Huang Zhongyue | Zendy; Zu Fangqiu | Zendy

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The influence of casting currents on the thermal stability of the Cu 36 Zr 48 Al 8 Ag 8 amorphous alloy

Author(s) -

Li Xiaoyun,

Shen Yuehua,

Cui Xiao,

Zhu Pantuo,

Zhang Qidong,

Huang Zhongyue,

Zu Fangqiu

Publication year - 2017

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.201600124

Subject(s) - thermal stability , alloy , materials science , amorphous solid , casting , metallurgy , thermal , amorphous metal , mineralogy , crystallography , thermodynamics , chemistry , physics , organic chemistry

The effects of casting currents on the thermal stability of Cu 36 Zr 48 Al 8 Ag 8 amorphous alloys were investigated. Differential scanning calorimetry and resistivity experiments show that the activation energy (∆ E x ,∆ E p ) of Cu 36 Zr 48 Al 8 Ag 8 amorphous alloy increases with elevating currents. Annealing experiments reveal that crystallization of low‐current samples occurs prior to that of high‐current samples. These results indicate that casting currents could enhance the thermal stability of amorphous alloys. The reason is analyzed from the viewpoint of melt state. These results could be used to provide a possible route to fabricate amorphous alloys with improved thermal stability.

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