Fig. 1. Simulated and designed static magnetic field devices. (a) Three-dimensional structure of electromagnetic device; (b) magnetic field intensity distribution on forming surface; (c) figure of electromagnetic device; (d) schematic of SLM forming under static magnetic field

Fig. 2. Characteristics of gas atomized GH3536 alloy powder. (a) Powder morphology; (b) powder particle size distribution

Fig. 3. Schematic of sample printing. (a) Scanning mode; (b) forming direction

Fig. 4. Optical micrographs of sample pores under different magnetic field strengths. (a) 0; (b) 0.1 T; (c) 0.3 T

Fig. 5. SEM images of samples under different magnetic field strengths. (a)(d) 0；(b)(e) 0.1 T；(c)(f) 0.3 T

Fig. 6. EBSD results of samples along building direction under different magnetic field strengths. (a)(d) 0；(b)(e) 0.1 T; (c)(f) 0.3 T

Fig. 7. EBSD results of samples along scanning direction under different magnetic field strengths. (a)(d) 0；(b)(e) 0.1 T; (c)(f) 0.3 T

Fig. 8. Mechanical properties of samples under different magnetic field strengths. (a) Stress-strain curves along scanning and building directions; (b) tensile strength and (c) elongation at break along scanning and building directions

Fig. 9. Schematics of influence of thermoelectric force on dendrites in melt pool under static magnetic field. (a) Dendrite growth direction without magnetic field; (b) dendrite growth direction under magnetic field