在添加剂制造的铝合金上通过喷射电沉积一步制备高性能 Ni-MoS2 自润滑涂层

IF 1.9 3区工程技术 Q3 ENGINEERING, MANUFACTURING

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture Pub Date : 2024-02-21 DOI:10.1177/09544054241232316

Jiantao Zhao, Ya Chen, Lida Shen, Haozhe Pang, Ziyang Yu, Kai Zhou, Dazhi Huang, Dongsheng Wang

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引用次数: 0

摘要

带有固体润滑剂的复合涂层可以改善激光粉末床熔融（LPBF）制备的铝合金零件的摩擦学性能。本研究通过喷射电沉积法在添加剂制造的铝合金表面一步制备了 Ni-MoS2 自润滑复合涂层。研究了使用不同 MoS2 颗粒直径和浓度的复合电解质制备的涂层的性能和润滑性能。讨论了复合涂层的润滑机理。结果表明，0.8 μm 的 MoS2 比 80 nm 的团聚更少，因此表面更均匀。复合涂层的润滑性能受 MoS2 颗粒含量和涂层硬度的影响。随着复合电解液中 MoS2 浓度的增加，摩擦系数和磨损率降低，当 MoS2 复合电解液为 5 g/l、MoS2 为 0.8 μm 时，达到了最佳润滑性能，摩擦系数为 0.12，磨损率为 0.11 mg/m。但是，软 MoS2 的加入降低了涂层硬度，硬度降低会导致润滑失效。

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One-step preparation of high performance Ni-MoS2 self-lubricating coatings via jet electrodeposition on additive manufactured aluminum alloy

Composite coatings with solid lubricants can improve the tribological performance of aluminum alloy parts prepared by Laser Powder Bed Fusion (LPBF). In this study, Ni-MoS2 self-lubricating composite coatings were one-step prepared on additive manufactured aluminum alloy surface via jet electrodeposition. The properties and lubrication performance of the coatings prepared using composite electrolyte with different MoS2 particle diameters and concentrations were investigated. The lubrication mechanism of the composite coating was discussed. The results showed that 0.8 μm MoS2 had less agglomeration than 80 nm, resulting in a uniform surface. The lubrication performance of the composite coating was affected by MoS2 particles content and coating hardness. With the increase of MoS2 concentration in the composite electrolyte, the friction coefficient and wear rate decreased, and achieved the best lubrication performance of 0.12 friction coefficient and 0.11 mg/m wear rate when MoS2 composite electrolyte is 5 g/l and MoS2 is 0.8 μm. However, the addition of soft MoS2 decreased the coating hardness, lower hardness will cause lubrication failure.

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来源期刊

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 工程技术-工程：机械

CiteScore

5.10

自引率

30.80%

发文量

167

审稿时长

5.1 months

期刊介绍： Manufacturing industries throughout the world are changing very rapidly. New concepts and methods are being developed and exploited to enable efficient and effective manufacturing. Existing manufacturing processes are being improved to meet the requirements of lean and agile manufacturing. The aim of the Journal of Engineering Manufacture is to provide a focus for these developments in engineering manufacture by publishing original papers and review papers covering technological and scientific research, developments and management implementation in manufacturing. This journal is also peer reviewed. Contributions are welcomed in the broad areas of manufacturing processes, manufacturing technology and factory automation, digital manufacturing, design and manufacturing systems including management relevant to engineering manufacture. Of particular interest at the present time would be papers concerned with digital manufacturing, metrology enabled manufacturing, smart factory, additive manufacturing and composites as well as specialist manufacturing fields like nanotechnology, sustainable & clean manufacturing and bio-manufacturing. Articles may be Research Papers, Reviews, Technical Notes, or Short Communications.