Wang Liang, Hu Yong, Lin Yinghua, Li Juehui, Yao Jianhua. Distribution Gradient Control of Laser Melt Injection Reinforcement Particles by Electromagnetic Compound Field[J]. Chinese Journal of Lasers, 2018, 45(10): 1002001
- Chinese Journal of Lasers
- Vol. 45, Issue 10, 1002001 (2018)
Fig. 1. Schematic of laser melt injection in collaboration with electromagnetic compound field
Fig. 2. Morphology of spherical WC particles
Fig. 3. Flow field distribution in molten pool under action of electromagnetic compound field (t=3.9 s). (a) B=0 T;(b) B=0.9 T; (c) B=0.9 T, upward Lorenz force; (d) B=0.9 T, downward Lorenz force
Fig. 4. Influence of induced Lorentz force on surface fluid speed in molten pool (t=3.9 s)
Fig. 5. Influence of directional Lorentz force on surface fluid speed in molten pool (t=3.9 s)
Fig. 6. Temperature field distribution in molten pool under action of electromagnetic compound field (t=3.9 s). (a) B=0 T; (b) B=0.9 T; (c) B=0.9 T, upward Lorenz force; (d) B=0.9 T, downward Lorenz force
Fig. 7. Particle distribution in melt injection layer under action of electromagnetic compound field. (a) B=0 T; (b) B=0.9 T, upward Lorenz force; (c) B=0.9 T, downward Lorenz force
Fig. 8. Experimental results of particle distributions in longitudinal section of melt injection layer under action of electromagnetic compound field. (a) With upward Lorenz force; (b) with downward Lorenz force; (c) without Lorenz force
Fig. 9. WC particle morphologies under action of electromagnetic compound field. (a) Without Lorenz force; (b) with downward Lorenz force; (c) with upward Lorenz force
Fig. 10. Schematic of forces acting on particles and fluid under action of electromagnetic compound field
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Table 1. Chemical compositions of 316L substrate material used in experiment (mass fraction, %)
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Table 2. Physical parameters of materials
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