Microstructure and Corrosion Behavior of Laser-Cladding CeO2-Doped Ni-Based Composite Coatings on TC4

Fangxia Ye; Wenxuan Shao; Xuchao Ye; Mingxia Liu; Yanxiang Xie; Peiying Bian; Xiaoyan Wang; Ling Liu; Hong Wu

doi:10.1155/2020/8690428

Journal of Chemistry (Jan 2020)

Microstructure and Corrosion Behavior of Laser-Cladding CeO2-Doped Ni-Based Composite Coatings on TC4

Fangxia Ye,
Wenxuan Shao,
Xuchao Ye,
Mingxia Liu,
Yanxiang Xie,
Peiying Bian,
Xiaoyan Wang,
Ling Liu,
Hong Wu

Affiliations

Fangxia Ye: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Wenxuan Shao: Shool of Mechanical and Material Engineering, Xi’an University, Xi’an 710065, China
Xuchao Ye: Xinjiang Petroleum Engineering Construction Supervision Co., Ltd., Xin Jiang, Kelamayi 834000, China
Mingxia Liu: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Yanxiang Xie: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Peiying Bian: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Xiaoyan Wang: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Ling Liu: The Key Laboratory for Surface Engineering and Remanufacturing of Shaanxi Province, Xi’an University, Xi’an 710065, China
Hong Wu: School of Electrical and Mechanical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

DOI: https://doi.org/10.1155/2020/8690428
Journal volume & issue: Vol. 2020

Abstract

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Laser-cladding CeO2-doped Ni-based composite coatings were prepared on the surface of a titanium alloy, and the effects of CeO2 addition on the microstructure, microhardness, and corrosion resistance of the prepared coatings were studied. The results showed that TiC, NiTi, Ni3Ti, and Ti2Ni phases were formed on the prepared coatings. Moreover, the addition of CeO2 in laser-cladding coatings effectively refined the microstructure and reduced the number of cracks generated in the laser-cladding process. When the amount of CeO2 was 2%, the number of cracks in the laser-cladding coating was significantly reduced compared with that of 0%. When the content of CeO2 was 2% or 3%, the microhardness of laser-cladding coatings reached the maximum value. At the same time, it was found that the appropriate addition of CeO2 was helpful to improve the corrosion resistance of the laser-cladding coating. However, excessive CeO2 addition could reduce the corrosion resistance of the laser-cladding coating.

Published in Journal of Chemistry

ISSN: 2090-9063 (Print); 2090-9071 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/2962

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