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Published in: Journal of Materials Engineering and Performance 11/2022

03-05-2022 | Technical Article

Effect of CeO2 on Microstructure and Wear Property of Laser Cladding Ni-Based Coatings Fabricated on 35CrMoV Steel

Authors: Zhongtang Gao, Haibo Ren, Haomin Geng, Yuan Yu, Zhiming Gao, Chuanwei Zhang

Published in: Journal of Materials Engineering and Performance | Issue 11/2022

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Abstract

The effects of CeO2 addition on the macro-morphology, surface cracks, microstructure, precipitated phases and wear property of laser cladding Ni-based coatings on 35CrMoV steel were investigated by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscope (TEM), x-ray photoelectron spectroscopy (XPS) and friction and wear tester, respectively. The results indicated that the microstructure could be remarkably refined with the addition of CeO2. The width of eutectic structure is reduced from 1.74 μm to 237.5 nm with the amount of CeO2 increases from 0 to 4.0 wt.%. Meanwhile, CeO2 significantly decreases the number of the oxides and it can be obtained the minimal number of cracks when the CeO2 addition reaches 4.0 wt.%. The main phase composition of Ni60 cladding layer is Ni3Fe, Ni3V, Cr23C6 and Fe5C2. The distortional zone was observed around the eutectic of the coating. The average friction coefficient (0.438) and the wear resistance are the best when the addition of CeO2 is 4.0 wt.%.

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Metadata
Title
Effect of CeO2 on Microstructure and Wear Property of Laser Cladding Ni-Based Coatings Fabricated on 35CrMoV Steel
Authors
Zhongtang Gao
Haibo Ren
Haomin Geng
Yuan Yu
Zhiming Gao
Chuanwei Zhang
Publication date
03-05-2022
Publisher
Springer US
Published in
Journal of Materials Engineering and Performance / Issue 11/2022
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-022-06950-x

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