Yuchen Xi, Jianbo Zhu, Shuang Liu, Yirong Tang, Qinying Wang, Shulin Bai. Effect of Pulsed Current on Mechanical and Anticorrosion Properties of Laser Cladded Coating[J]. Laser & Optoelectronics Progress, 2018, 55(4): 043102
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 043102 (2018)
Fig. 1. (a) Laser cladding equipment; (b) schematic of coating fabrication; (c) schematic of pulsed current processing
Fig. 2. XRD patterns of cladded coatings under different pulsed current processing time
Fig. 3. Surface morphologies of cladded coatings under different pulsed current processing time. (a) 0 h; (b) 1 h; (c) 2 h
Fig. 4. Elementary compositions of cladded coating treated by pulsed current for 2 h. (a) Primary crystal structure; (b) eutectic crystal structure
Fig. 5. Hardness distributions of cladded coatings under different pulsed current processing time
Fig. 6. Nyquist plots of cladded coatings under different pulsed current processing time. (a) 0 h; (b) 1 h; (c) 2 h
Fig. 7. (a) Rox curves of cladded coatings under different pulsed current processing time; (b) equivalent circuit
Fig. 8. Potentiodynamic polarization curves of cladded coatings under different pulsed current processing time
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Table 1. Chemical compositions of Q235 steel and Ni-Cr-Mo alloy powder (mass fraction, %)
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Table 2. Corrosion results of cladded coatings under different pulsed current processing time
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