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Open AccessArticle
Microstructure and Wear Resistance of FeCrV15 Coatings by Laser Cladding
by
Zhiwei Bi
Zhiwei Bi and
Tianqing Li
Tianqing Li
Tianqing Li received his doctorate degree in welding from the Shandong University in 2014. He as [...]
Tianqing Li received his doctorate degree in welding from the Shandong University in 2014. He worked as a teacher at Jiangsu University (2015–now).Tianqing Li is an Associate Professor in the School of Materials Science and Technology of Jiangsu University. His research areas mainly include plasma arc welding, laser beam welding, laser cladding, and numerical simulation.
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School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
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Author to whom correspondence should be addressed.
Metals 2024, 14(10), 1136; https://doi.org/10.3390/met14101136 (registering DOI)
Submission received: 11 September 2024
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Revised: 3 October 2024
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Accepted: 4 October 2024
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Published: 5 October 2024
Abstract
Improving the surface performance and service life of 60Si2Mn steel is an important issue in agricultural machinery. A FeCrV15 coating layer may exhibit excellent performance in wear resistance. This research focuses on studying the microstructure and wear resistance of the FeCrV15 coating layer at various scanning speeds through laser cladding. Microstructure, phase distribution, surface hardness, and wear resistance of the coating layers are analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), a microhardness tester, and laser confocal microscopy. The results indicate that the FeCrV15 alloy coating consists of γ-Fe, V8C7, and Cr7C3. The microhardness of the FeCrV15 coatings increases with the increase in the scanning speed. At a scanning speed of 8 mm/s, the highest microhardness reaches 727.5 ± 27 HV, approximately 2.5 times higher than the substrate. The friction and wear test of the coating is conducted using a 4 mm diameter Si3N4 ball grinding pair. The coatings prepared at different scanning speeds exhibit lower average coefficients of friction and wear rates compared to the substrate. Both the average coefficient of friction and wear rate decrease with increasing scanning speed. At a scanning speed of 8 mm/s, the lowest average coefficient of friction and the lowest wear rate were observed. The main wear mechanisms of the coating are oxidative wear and adhesive wear, with a small amount of abrasive wear.
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MDPI and ACS Style
Bi, Z.; Li, T.
Microstructure and Wear Resistance of FeCrV15 Coatings by Laser Cladding. Metals 2024, 14, 1136.
https://doi.org/10.3390/met14101136
AMA Style
Bi Z, Li T.
Microstructure and Wear Resistance of FeCrV15 Coatings by Laser Cladding. Metals. 2024; 14(10):1136.
https://doi.org/10.3390/met14101136
Chicago/Turabian Style
Bi, Zhiwei, and Tianqing Li.
2024. "Microstructure and Wear Resistance of FeCrV15 Coatings by Laser Cladding" Metals 14, no. 10: 1136.
https://doi.org/10.3390/met14101136
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