Fig. 1. Morphology and particle size distribution of GH3536 alloy powders. (a) Morphology; (b) particle size distribution

Fig. 2. Forming directions and size of specimens. (a) Schematic of bulk specimens and SLM-formed tensile specimens; (b) size of standard tensile specimen

Fig. 3. Morphologies of deposited GH3536 alloy after polishing. (a) Enlarged morphology of crack; (b) whole view; (c) enlarged hole

Fig. 4. Microstructures of deposited GH3536 alloy

Fig. 5. Microstructures of heat treated GH3536 alloy

Fig. 6. EDS of heat treated GH3536 alloy. (a) SEM morphology; (b) EDS analysis

Fig. 7. Precipitation phase in heat treated GH3536 alloy. (a) TEM photograph; (b) selected area electron diffraction pattern

Fig. 8. Tensile properties of heat treated GH3536 alloy at various temperatures. (a) Tensile strength; (b) elongation

Fig. 9. Fracture morphologies of heat treated tensile specimens at room temperature. (a)(b) Front view of transverse specimen; (c)(d) side view of transverse specimen; (e)(f) front view of longitudinal specimen; (g)(h) side view of longitudinal specimen

Fig. 10. Fracture morphologies of heat treated tensile specimens at 815 ℃. (a)(b) Front view of transverse specimen; (c)(d) side view of transverse specimen; (e)(f) front view of longitudinal specimen; (g)(h) side view of longitudinal specimen

Fig. 11. Enlarged fracture morphologies of heat-treated tensile specimens at room temperature and elevated temperature (815 ℃). (a) Transverse tensile specimen, room temperature; (b) longitudinal tensile specimen, room temperature; (c) transverse tensile specimen, elevated temperature; (d) longitudinal tensile specimen, elevated temperature

Fig. 12. Cracks observed from section of tensile specimens. (a) Tensile specimen at room temperature; (b) tensile specimen at elevated temperature