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Article

Investigation of the Tribological Behavior and Microstructure of Plasma-Cladded Fe–Cr–Mo–Ni–B Coating

1
Guangdong Provincial Key Laboratory of Advanced Welding Technology, China-Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangzhou 510650, China
2
Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen 529020, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Ştefan Ţǎlu
Materials 2022, 15(19), 6595; https://doi.org/10.3390/ma15196595
Received: 26 July 2022 / Revised: 2 September 2022 / Accepted: 5 September 2022 / Published: 23 September 2022
In this study, an Fe–Cr–Mo–Ni–B coating was prepared using plasma cladding on Cr5 steel substrate. The microstructure, phase evolution and tribological performance of the Fe–Cr–Mo–Ni–B coating were investigated. The microstructure is mainly composed of Mo2FeB2, Fe2B, α-Fe, γ-Fe and MoB. The process of phase evolution in the coating was observed in situ by HT-CLSM. The Mo2FeB2 phase with good thermodynamic stability can exist in the high-temperature liquid phase. It also has a phenomenon of connection and merging and turns into different morphology during the plasma cladding process. The hardness value of coating was much higher than the base metal, and the hardness value of Mo2FeB2 (785.5 HV) was higher than the eutectic matrix (693.2 HV). The wear mechanisms of the cladding under dry sliding were primarily caused by adhesive wear, accompanying slight oxidation wear. The Mo2FeB2 phase has an important effect on the wear resistance property. View Full-Text
Keywords: Fe–Cr–Mo–Ni–B; Mo2FeB2; wear resistance; microstructure; plasma cladding Fe–Cr–Mo–Ni–B; Mo2FeB2; wear resistance; microstructure; plasma cladding
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MDPI and ACS Style

Chen, J.; Zhang, F.; Ren, X.; Wu, Y.; Han, S.; Cai, M.; Li, Z.; Li, L. Investigation of the Tribological Behavior and Microstructure of Plasma-Cladded Fe–Cr–Mo–Ni–B Coating. Materials 2022, 15, 6595. https://doi.org/10.3390/ma15196595

AMA Style

Chen J, Zhang F, Ren X, Wu Y, Han S, Cai M, Li Z, Li L. Investigation of the Tribological Behavior and Microstructure of Plasma-Cladded Fe–Cr–Mo–Ni–B Coating. Materials. 2022; 15(19):6595. https://doi.org/10.3390/ma15196595

Chicago/Turabian Style

Chen, Junfu, Fenglong Zhang, Xianghui Ren, Yaoshen Wu, Shanguo Han, Manxia Cai, Zhenglong Li, and Likun Li. 2022. "Investigation of the Tribological Behavior and Microstructure of Plasma-Cladded Fe–Cr–Mo–Ni–B Coating" Materials 15, no. 19: 6595. https://doi.org/10.3390/ma15196595

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