Fig. 1. (a) Geometric model and (b) mesh generation in numerical simulation

Fig. 2. Vector distribution maps of electromagnetic force at differenct positions of laser molten pool. (a) Surface; (b) cross section

Fig. 3. Flow fields at different positions of laser molten pools obtained under different magnetic field intensities (a) 0 mT, surface; (b) 0 mT, cross section; (c) 20 mT, surface; (d) 20 mT, cross section; (e) 40 mT, surface; (f) 40 mT, cross section; (g) 60 mT, surface; (h) 60 mT, cross section; (i) 80 mT, surface; (j) 80 mT, cross section

Fig. 4. Temperature distributions on surface of molten pools obtained under different magnetic field intensities. (a) 0 mT; (b) 20 mT; (c) 40 mT; (d) 60 mT; (e) 80 mT

Fig. 5. Temperature in molten pool versus layer depth under different magnetic field intensities

Fig. 6. Temperature gradient and solidification rate versus magnetic field intensity in molten pools

Fig. 7. Typical SEM morphologies of alloy forming parts obtained under different magnetic field intensities. (a) 0 mT; (b) 20 mT; (c) 40 mT; (d) 60 mT; (e) 80 mT

Fig. 8. Micro-hardness of alloy forming products versus magnetic field intensity intensity

Fig. 9. Friction coefficient and wear scar width versus magnetic field intensity for alloy forming parts

Fig. 10. Wear surface morphologies of alloy forming parts obtained under different magnetic field intensities. (a) 0 mT; (b) 20 mT; (c) 40 mT; (d) 60 mT; (e) 80 mT