Micro-deposition of Cu-based metallic glass wire by direct laser melting process

In this study, the Cu66.5Zr33.5 (at%) metallic glass layers were deposited using laser melting additive manufacturing technique to investigate the effect of laser power on the deposition of CuZr metallic glass micro-wires. The Cu-based metallic glass micro-wires ∼150 µm in diameter with circular cross section were produced by melt-extraction method. It was found that the mean width of deposited layer is expanded from 166 µm to 356 µm with increasing laser power attributed to a change in the wettability. The micro-hardness value of Cu-based metallic glass deposited layer was higher in low power deposition. The reliability for the optimization of processing parameters to control micrometer scale deposition by metallic glass wire is also evaluated.