Microstructure and Corrosion Resistance of Cu/Ni Composite Coating Fabricated by Cold Spray

IF 1.6 4区材料科学 Q2 Materials Science Transactions of The Indian Institute of Metals Pub Date : 2024-07-26 DOI:10.1007/s12666-024-03297-w

Mei-ting Wang, Bao-yi Yu, Li Zheng, Tao Huang, Dong-xu Chang

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Abstract

Cold spraying methods are used to prepare Cu/Ni composite coating on Q235 substrates. The porosity, micromorphology, and microhardness and corrosion properties of the copper coating prepared by cold spraying are studied. This experiment mainly explores the microstructure and corrosion resistance of Cu/Ni composite coatings prepared by different composition powder ratios. The heat treatment process of the coating was carried out to explore the effect of the heat treatment process on the microstructure and corrosion resistance of the coating. The results indicated that the porosity of the coating increases slightly with an increase in nickel powder content. The metal nickel plays an anodic protection role in the Cu/Ni battery. However, too much nickel will lead to too much anode material, and the overall structure of the coating will be destroyed after anode corrosion. The composite coating prepared with 40 wt% nickel powder has the best corrosion resistance. After heat treatment, the corrosion resistance of copper/nickel composite coatings is reduced, and the quality of the coatings is improved.

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冷喷法制造的铜/镍复合涂层的微观结构和耐腐蚀性能

采用冷喷法在 Q235 基材上制备铜/镍复合涂层。研究了冷喷法制备的铜镀层的孔隙率、微观形貌、显微硬度和腐蚀性能。本实验主要探讨了不同成分粉末配比制备的铜/镍复合涂层的微观结构和耐腐蚀性能。并对涂层进行了热处理，以探讨热处理工艺对涂层微观结构和耐腐蚀性能的影响。结果表明，随着镍粉含量的增加，涂层的孔隙率略有增加。金属镍在铜/镍电池中起到阳极保护作用。然而，过多的镍会导致阳极材料过多，阳极腐蚀后涂层的整体结构将被破坏。用 40 wt% 的镍粉制备的复合涂层具有最好的耐腐蚀性。经过热处理后，铜/镍复合镀层的耐腐蚀性降低，镀层质量提高。

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来源期刊

Transactions of The Indian Institute of Metals Materials Science-Metals and Alloys

CiteScore

2.60

自引率

6.20%

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期刊介绍： Transactions of the Indian Institute of Metals publishes original research articles and reviews on ferrous and non-ferrous process metallurgy, structural and functional materials development, physical, chemical and mechanical metallurgy, welding science and technology, metal forming, particulate technologies, surface engineering, characterization of materials, thermodynamics and kinetics, materials modelling and other allied branches of Metallurgy and Materials Engineering. Transactions of the Indian Institute of Metals also serves as a forum for rapid publication of recent advances in all the branches of Metallurgy and Materials Engineering. The technical content of the journal is scrutinized by the Editorial Board composed of experts from various disciplines of Metallurgy and Materials Engineering. Editorial Advisory Board provides valuable advice on technical matters related to the publication of Transactions.