Fig. 1. SEM image and XRD pattern of Zr50 amorphous alloy powders. (a) SEM image; (b) XRD pattern

Fig. 2. Diagram of selective laser melting

Fig. 3. Macroscopic appearance and XRD pattern of Zr50 amorphous alloy prepared by selective laser melting. (a) Macroscopic appearance; (b) XRD pattern

Fig. 4. Microstructures of cross-section of Zr50 amorphous alloy formed by selective laser melting. (a) Upper part of deposition layer; (b) middle part of deposition layer; (c) bottom of deposition layer and its junction with the substrate

Fig. 5. Back scatter images of Zr50 amorphous alloy. (a) Microstructure; (b) partially enlarged area

Fig. 6. TEM images of Zr50 amorphous alloy. (a) Coexistence zone of amorphous zone and crystallization zone; (b) nanocrystalline

Fig. 7. Schematics of weld bead superposition process. (a) Schematic of single weld bead; (b) schematic of weld bead superposition

Fig. 8. Schematics of superposition process of deposition layers. (a) Schematic of multi-weld bead superposition of single-layer deposition layer; (b) schematic of superposition between multi-layer deposition layers

Fig. 9. Thermal cycle curve of superposition area of heat affected zone. (a) Weld bead superposition; (b) deposition layer superposition

Fig. 10. Diagram of selective laser melting preparation process of bulk amorphous alloy

Fig. 11. Thermal cycle curves of Zr50 bulk amorphous alloy prepared by selective laser melting