Fig. 1. Schematic of laser cladding system

Fig. 2. Schematic of multi-layer and multi-channel cladding path

Fig. 3. Schematics of tensile sampling. (a) Schematic of sampling position; (b) drawing of tensile specimen size

Fig. 4. Morphologies of surface and cross section in single-pass process experiment

Fig. 5. Size of single-pass cladding section

Fig. 6. Metallographic structures of cladding layer under different laser powers

Fig. 7. Microstructures under different laser powers

Fig. 8. Experimental results of laser cladding Ti60 block. (a)(b) Surface morphologies; (c) macroscopic cross section; (d) layer band structure; (e) interlayer heat affected zone

Fig. 9. High magnification images of as-deposited sample of laser cladded Ti60 block. (a) Top area; (b) local magnification of Fig. 9(a); (c) central area; (d) local magnification of Fig. 9(c); (e) bottom area; (f) local magnification of Fig. 9(e)

Fig. 10. TEM images of laser cladded Ti60 alloy. (a) Dislocation and dislocation wall; (b) stack faults

Fig. 11. Hardness distribution of bulk as-deposited sample

Fig. 12. Mechanical properties of tensile specimen of laser cladded Ti60 alloy. (a) Stress-strain curves; (b) comparison of mechanical properties

Fig. 13. SEM images of tensile fractures of laser cladded Ti60 sample at different temperatures