Yifei Xu, Yaoning Sun, Guojian Wang, Yongliang Gui. Microstructure and Properties of Iron-Based Alloys Coatings Prepared by High-Speed Laser Cladding[J]. Chinese Journal of Lasers, 2021, 48(10): 1002122
- Chinese Journal of Lasers
- Vol. 48, Issue 10, 1002122 (2021)
Fig. 1. Macro morphology of cladding coating
Fig. 2. Surface roughness of cladding coating
Fig. 3. Cross-sectional morphologies of double-layer coating. (a) Unfused particles; (b) schematic of dilution ratio
Fig. 4. EDS spectrum of high-speed laser cladding double-layer coating
Fig. 5. Morphologies of the cladding coating. (a) Single layer; (b) double layer; (c) four layers
Fig. 6. SEM morphologies of high-speed laser cladding coating. (a) Whole morphology of coating; (b) coating/substrate interface zone; (c) middle zone; (d) near-surface
Fig. 7. XRD pattern of high-speed laser cladding coating
Fig. 8. Calculation of average grain diameter. (a) Single circle grain boundary intersection count; (b) software Nano Measurer's measurements
Fig. 9. Microhardness distribution of double-layer coating
Fig. 10. Corrosion resistance of substrate and cladding coating in 3.5% NaCl solution. (a) Polarization curves; (b) Nyquist diagram; (c)(d) Bode diagram
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Table 1. Chemical composition of iron-based alloy powder
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Table 2. Parameters in laser cladding process
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Table 3. Electrochemical corrosion performance of substrate and cladding coating
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