Jitai Han, Qingfeng Xia, Keqing Wang, Guoxiang Hua. Microstructure Evolution and Properties of WC/Ni Based Coating on the Surface of 12CrMoV Alloy Steel by Laser Cladding[J]. Laser & Optoelectronics Progress, 2024, 61(9): 0914008
- Laser & Optoelectronics Progress
- Vol. 61, Issue 9, 0914008 (2024)
Fig. 1. Single channel morphologies of different coating samples. (a) W10; (b) W20; (c) W30
Fig. 2. XRD pattern of W20 coating
Fig. 3. Microstructures of W20 coating
Fig. 4. Microstructures of WC/Ni based coatings. (a) (b) W10 coating; (c) (d) W20 coating; (e) (f) W30 coating
Fig. 5. Mechanical properties of WC/Ni based coatings. (a) Microhardness; (b) COF; (c) average COF; (d) wear volume
Fig. 6. Wear morphologies of WC/Ni based coatings. (a) W10 coating; (b) W20 coating; (c) W30 coating; (d) mapping of Fig.6(b)
Fig. 7. Polarization curves of WC/Ni based coatings
Fig. 8. Equivalent circuit
Fig. 9. Nyquist and Bode plots of WC/Ni based coatings. (a) Nyquist plot; (b) Bode plot
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Table 1. Chemical composition of Ni60 and 12CrMoV
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Table 2. Element proportion of phase
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Table 3. Average grain size of W10，W20，W30
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Table 4. Electrochemical parameters obtained by Tafel empirical law and polarization curves
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Table 5. Equivalent circuit fitting results
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