Study on the Performance Improvement of Laser Cladding Ni/WC Based Cladding Layer by Adding CeO<sub>2</sub>

Longwei Jiang; Wenqing Shi; Yiming Lin; Bingqing Zhang; Lijun Wang

doi:10.3788/LOP241642

Laser & Optoelectronics Progress, Volume. 62, Issue 5, 0514008(2025)

Study on the Performance Improvement of Laser Cladding Ni/WC Based Cladding Layer by Adding CeO₂

Longwei Jiang^1、*, Wenqing Shi^1,2,3, Yiming Lin¹, Bingqing Zhang¹, and Lijun Wang³

Author Affiliations

¹School of Electronics and Information Engineering, Guangdong Ocean University, Zhanjiang 524088, Guangdong , China

²School of Materials Science and Engineering, Guangdong Ocean University, Yangjiang 529500, Guangdong , China

³Naval Architecture and Shipping College, Guangdong Ocean University, Zhanjiang 524005, Guangdong , China

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Figures & Tables(12)

Fig. 1. SEM morphology of the powder. (a)WC powder; (b)Ni powder; (c)CeO₂ powder

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$SEM cross-sectional microscopy images of the overlay layer with added CeO2 content of different mass fractions$

Fig. 2. SEM cross-sectional microscopy images of the overlay layer with added CeO₂ content of different mass fractions

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Fig. 3. SEM image with 2% CeO₂added and EDS surface scanning

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$X-ray diffraction spectra of the cladding layer$

Fig. 4. X-ray diffraction spectra of the cladding layer

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Fig. 5. (a) Microhardness distribution map of the cladding layer; (b) average microhardness map of the cladding layer

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Fig. 6. (a)Friction coefficient curve of the cladding layer; (b) wear amount of the cladding layer

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Fig. 7. Wear morphology diagram of the cladding layer

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$Polarization curves of the cladding layer in the NaCl solution (mass fraction of 3.5%)$

Fig. 8. Polarization curves of the cladding layer in the NaCl solution (mass fraction of 3.5%)

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$Nyquist impedance diagram of the cladding layer in the NaCl solution (mass fraction of 3.5%)$

Fig. 9. Nyquist impedance diagram of the cladding layer in the NaCl solution (mass fraction of 3.5%)

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Table 1. Chemical composition table of the 45 steel
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Table 1. Chemical composition table of the 45 steel
Element C Si Mn Cr Ni Cu P S Fe
Mass friction /% 0.42‒0.5 0.17‒0.37 0.5‒0.8 ≤0.25 ≤0.25 ≤0.25 ≤0.035 ≤0.035 Bal.

Table 2. WC,Ni, and CeO₂ component ratios
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Table 2. WC,Ni, and CeO₂ component ratios
Sample 1 2 3 4
WC 80 80 80 80
Ni 20 18 16 14
CeO₂ 0 2 4 6

Table 3. Electrochemical parameters of the cladding layer in the NaCl solution (mass fraction of 3.5%)
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Table 3. Electrochemical parameters of the cladding layer in the NaCl solution (mass fraction of 3.5%)
Mass fraction of CeO₂ E_corr /V I_corr /（μA·cm^-2）
0% CeO₂ -0.842 1.768×10^-4
2% CeO₂ -0.826 4.214×10^-5
4% CeO₂ -0.866 4.564×10^-4
6% CeO₂ -0.875 6.017×10^-4

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Longwei Jiang, Wenqing Shi, Yiming Lin, Bingqing Zhang, Lijun Wang. Study on the Performance Improvement of Laser Cladding Ni/WC Based Cladding Layer by Adding CeO₂[J]. Laser & Optoelectronics Progress, 2025, 62(5): 0514008

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