Abstract
The effects of casting currents on the thermal stability of Cu36Zr48Al8Ag8 amorphous alloys were investigated. Differential scanning calorimetry and resistivity experiments show that the activation energy (∆Ex,∆Ep) of Cu36Zr48Al8Ag8 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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