Joining of Zr₄₁Be₂₃Ti₁₄Cu₁₂Ni₁₀ Bulk Metallic Glasses by a Friction Welding Method

Abstract

In order to establish metallurgical bonding technology of bulk metallic glasses, welding of Zr₄₁Be₂₃Ti₁₄Cu₁₂Ni₁₀ bulk metallic glasses with a wide supercooled liquid region and high glass forming ability has been tried by friction welding. The Zr₄₁Be₂₃Ti₁₄Cu₁₂Ni₁₀ bulk metallic glasses have successfully welded to the same bulk metallic glasses together. Under a wide range of conditions, no crystallization and no visible defects were observed in the interface. The tensile strength of the welded bulk metallic glasses was the same as that of the parent ones. Moreover, the effects of friction-welding conditions such as friction time, rotational speed and upsetting pressure have been investigated.