Yuncai Zhao, Huihui Du, Xuchao Shangguan, Wen He. Influences of Laser Remelting Trajectories on Microstructures and Properties of Fe-Based Ni/WC Coatings[J]. Laser & Optoelectronics Progress, 2018, 55(4): 041404
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 041404 (2018)
Fig. 1. Surface morphologies of coatings under different laser remelting trajectories.(a) Dotted; (b) rectangular; (c) parallel; (d) circular
Fig. 2. Micro-morphologies of remelted layers under different laser remelting trajectories. (a) Dotted; (b) rectangular; (c) parallel; (d) circular
Fig. 3. Element content test of coatings under circular laser remelting trajectories. (a) Area; (b) result
Fig. 4. XRD pattern of cladding surface under circular laser remelting trajectories
Fig. 5. Metallograph of bonding interface between coating and substrate under different remelting trajectories. (a) Dotted; (b) rectangular; (c) parallel; (d) circular
Fig. 6. Microhardness of coatings under different remelting trajectories
Fig. 7. Wear loss under different remelting trajectories
Fig. 8. SEM images of coatings after dry sliding under different remelting trajectories. (a) Circular; (b) dotted
Fig. 9. SEM image of parallel scanning trajectory after dry sliding friction
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Table 1. Chemical compositions of Fe40 Fe-based alloy powder (mass fraction, %)
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Table 2. Chemical compositions of Ni60+35WC nickel tungsten carbide powder (mass fraction, %)
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Table 3. Process parameters under different laser remelting trajectories
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Table 4. Experimental parameters of friction and wear
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Table 5. Surface porosity of coatings under different remelting trajectories
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