Bulk Metallic Glass Formation by Melting Liquid Joining Method

Abstract

There were many techniques of joining two or three materials. A new metallic liquid jointing technique which enables the joint of Zr₅₅Cu₃₀Ni₅Al₁₀ bulk glassy alloy without any crystallization is very useful to produce a large bulk metallic glass. Molten alloy streams with high velocity are generated by ejection of alloy liquid through two nozzles at different sites. The jointed region has nearly the same structure, thermal stability and mechanical properties as those for the original glassy Zr₅₅Cu₃₀Ni₅Al₁₀ alloy. The successful joint method can produce the large glassy Zr₅₅Cu₃₀Ni₅Al₁₀ rod of 600 mm in length and 3 mm in diameter.