Fig. 1. Schematic of laser cladding and solution domain of model. (a) Coaxial laser cladding; (b) longitudinal section of solution domain

Fig. 2. Schematic of particle collision

Fig. 3. Simulated results of the gas flow field

Fig. 4. Powder trajectory comparison. (a) Simulation results; (b) experimental results^[16]

Fig. 5. Spatial distribution of powder

Fig. 6. Powder density distribution on longitudinal section

Fig. 7. Powder density along the axial line AB

Fig. 8. Powder density on longitudinal section. (a) Before the molten pool formation; (b) after the molten pool formation

Fig. 9. Powder density along the axial line before and after the molten pool formation

Fig. 10. Effect of compressed gas flow rate on powder density along the axial line