We used pulsed laser beam welding method to join Pd₄₃Cu₂₇Ni₁₀P₂₀ (at.%) bulk metallic glass and characterized the properties of the joint. Fusion zone and heat-affected zone in the weld joint can be maintained completely amorphous as confirmed by X-ray diffraction and differential scanning calorimetry. No visible defects were observed in the weld joint. Nanoindentation and bend tests were carried out to determine the mechanical properties of the weld joint. Fusion zone and heat-affected zone exhibit very similar elastic moduli and hardness when compared to the base material, and the weld joint shows high ductility in bending which is accomplished through the operation of multiple shear bands. Our results reveal that pulsed laser beam welding under appropriate processing parameters provides a practical viable method to join bulk metallic glasses.

中文翻译：

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Pd43Cu27Ni10P20大块金属玻璃的脉冲激光束焊接。

我们使用脉冲激光束焊接方法来连接Pd ₄₃ Cu ₂₇ Ni ₁₀ P ₂₀（at。％）大块金属玻璃，并表征了接头的性能。X射线衍射和差示扫描量热法证实，焊接接头中的熔合区和热影响区可以完全保持非晶态。在焊接接头中未观察到可见的缺陷。进行了纳米压痕和弯曲测试，以确定焊接接头的机械性能。与基础材料相比，熔合区和热影响区显示出非常相似的弹性模量和硬度，并且焊接接头在弯曲方面表现出高延展性，这是通过操作多个剪切带实现的。我们的结果表明，在适当的加工参数下进行脉冲激光束焊接可提供一种可行的方法来连接大块金属玻璃。