FABRICATION OF BULK AMORPHOUS ALLOY SHEETS BY STRIP CASTING

Abstract

A study has been made to fabricate the bulk amorphous alloy sheets by strip casting. Simulation of the solidification behavior of the Zr-base amorphous forming alloy during strip casting shows that fast enough cooling rate can be achieved by strip casting to form amorphous structure through the thickness of sheet. Two alloys with different glass forming abilities were subjected to actual strip casting, which shows that both Zr-base alloy with high GFA and Cu-base alloy with much less GFA can be strip cast forming amorphous structure. The results indicate that the strip casting is a viable process for continuous fabrication of sheets of bulk amorphous alloys with a wide range of critical cooling rates.