Chen Cui, Meiping Wu, Wei Cheng. Effect of Laser Power on Corrosion Resistance of 42CrMo Cladding Stellite-6 Coating[J]. Laser & Optoelectronics Progress, 2019, 56(24): 241403
- Laser & Optoelectronics Progress
- Vol. 56, Issue 24, 241403 (2019)
Fig. 1. Corrosion rate of substrate and Stellite-6 coating prepared at different laser powers in NaCl solution
Fig. 2. Dynamic polarization in NaCl solution of base steel and Stellite-6 coating samples prepared at different laser powers
Fig. 3. Polarization resistance curves of base steel and Stellite-6 coating prepared at different laser powers in NaCl solution
Fig. 4. Corrosion morphologies of base steel and Stellite-6 coating prepared at different powers after soaking in NaCl solution for 24 h. (a) Base steel; (b) 1500 W; (c)2000 W; (d) 2500 W; (e) 3000 W
Fig. 5. Metallographic structures of the molten pool in cladding layer prepared at different laser powers. (a) 1500 W; (b) 2000 W; (c) 2500 W; (d) 3000 W
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Table 1. Chemical composition of 42CrMo substrate
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Table 2. Chemical composition of Stellite-6 powder
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Table 3. Electrochemical parameters of base steel and Stellite-6 coating samples prepared at different powers in NaCl solution
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