Fig. 1. Schematic of laser cladding process

Fig. 2. SEM graph of 304 stainless steel powders

Fig. 3. Temperature field distributions of single cladding layer under different scanning speeds. (a) v=2 mm/s; (b) v=4 mm/s; (c) v=7 mm/s; (d) v=10 mm/s; (e) v=13 mm/s; (f) v=16 mm/s

Fig. 4. Cross sections of single 304 stainless steel cladding layer under different scanning speeds. (a) v=2 mm/s; (b) v=4 mm/s; (c) v=7 mm/s; (d) v=10 mm/s; (e) v=13 mm/s; (f) v=16 mm/s

Fig. 5. Schematic of single cladding layer cross-section

Fig. 6. Cross section sizes of single 304 stainless steel cladding layer under different scanning speeds

Fig. 7. Dilution ratio curves

Fig. 8. Schematic of positions for energy spectrum analysis

Fig. 9. Energy spectrum analysis for cladded sample prepared at scanning speed of 10 mm/s. (a) Sampling area A; (b) sampling area B; (c) sampling area C; (d) sampling area D; (e) sampling area E

Fig. 10. Mass fraction ratios of Fe to Cr at different sampling areas in cladding layers

Fig. 11. Schematic for position of microhardness testing

Fig. 12. Microhardness curves of cladding layers obtained under different scanning speeds