Fig. 1. Microstructure and particle size distribution of Cu-10Sn powder. (a) Microstructure of Cu-10Sn powders; (b) particle size distribution of the Cu-10Sn powder

Fig. 2. Microstructure of single powder. (a) Magnification of single powder; (b) cross section image of single powder

Fig. 3. Laser scanning strategy

Fig. 4. Size diagram of the specimens for tensile test

Fig. 5. Graph of relative density under different process parameters. (a) Response surface chart showing the effects of different parameter sets on the relative density of the SLM specimens; (b) influence of hatch space on relative density

Fig. 6. Morphology of the single layer melted powers

Fig. 7. Morphologies of the different pores in SLM formed samples. (a) Single-layers pore; (b) multi-layers pore

Fig. 8. XRD spectrum of water atomized Cu-10Sn alloy powder and the SLM formed sample

Fig. 9. Schematic of scanning plane of the SLM formed sample

Fig. 10. Microstructure of the Cu-10Sn alloy under the optimization of SLM process. (a)(b) Parallel to the scanning plane; (c)(d) Vertical to the scanning plane

Fig. 11. Schematic of remelting of adjacent forming layers in SLM process

Fig. 12. Microstructure of the Cu-10Sn alloy under the optimization of casting process

Fig. 13. TEM image of the SLM formed sample of Cu-10Sn alloy

Fig. 14. (a) True stress-strain curve of the SLM specimen under quasi-static tensile test; (b) fracture morphology of the original specimen under quasi-static tensile test; (c) magnification of fracture morphology

Fig. 15. (a) True stress-strain curve of the casting specimen under quasi-static tensile test; (b) fracture morphology of the casting specimen under quasi-static tensile test; (c) magnification of fracture morphology