Laser welding of Zr₄₁Ti₁₄Cu₁₂Ni₁₀Be₂₃ bulk metallic glass and zirconium metal

Abstract

The laser bonding technology between the Zr₄₁Ti₁₄Cu₁₂Ni₁₀Be₂₃ bulk metallic glass and zirconium metal was investigated under welding parameters of 1.3 kW and 7 m/min. The welded bead, microstructure, and micro-hardness of the welded joint were examined by Keyence, transmission electron microscopy, scanning electron microscopy, and Vickers hardness, respectively. The experimental results showed that the Zr₄₁Ti₁₄Cu₁₂Ni₁₀Be₂ bulk metallic glass and zirconium metal were successfully bonded together. The Zr₄₁Ti₁₄Cu₁₂Ni₁₀Be₂ in the base material zone maintained amorphous structure, and the welding fusion zone kept the hardness as high as as-received BMG. Therefore, the laser welding technology can be used to achieve successful bonding of bulk metallic glasses and crystallization metal.

Keywords

laser welding / bulk metallic glass / zirconium metal / microstructure

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