Reciprocating dry sliding friction and wear behavior of graphene oxide-reinforced Ni-Co composite coatings

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS Diamond and Related Materials Pub Date : 2025-04-01 Epub Date: 2025-03-14 DOI:10.1016/j.diamond.2025.112210

Erhan Duru , Malik Akyüz , Deniz Gültekin , Hasan Algül , Hatem Akbulut , Mehmet Uysal

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Abstract

Graphene oxide (GO)-reinforced NiCo composite coatings were fabricated on medium carbon steel substrates using a pulse electrodeposition technique with electrolytic solutions containing varying GO concentrations. The effect of GO concentration on the morphology, nano-hardness, elastic modulus, friction, and wear resistance of the coatings was systematically investigated. The incorporation of GO significantly improved the mechanical and tribological properties of the coatings. At an optimal GO concentration of 100 mg/L, the coatings exhibited the highest nano-hardness (6.15 GPa), elastic modulus (223 GPa), and the lowest friction coefficient (~0.21), along with a 65 % reduction in wear rate compared to pure NiCo coatings. These improvements are attributed to grain refinement, enhanced interfacial bonding, and the formation of a tribo-protective film. This study highlights the potential of Ni-Co-GO composite coatings for applications requiring high wear resistance and load-bearing capacity, such as automotive ball joint bearings.

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氧化石墨烯增强Ni-Co复合涂层的往复干滑动摩擦磨损行为

采用脉冲电沉积技术，在含有不同氧化石墨烯浓度的电解溶液中，在中碳钢基体上制备氧化石墨烯增强NiCo复合涂层。系统研究了氧化石墨烯浓度对涂层形貌、纳米硬度、弹性模量、摩擦磨损性能的影响。氧化石墨烯的加入显著改善了涂层的机械性能和摩擦学性能。当氧化石墨烯浓度为100 mg/L时，涂层具有最高的纳米硬度（6.15 GPa）、弹性模量（223 GPa）和最低的摩擦系数（~0.21），与纯NiCo涂层相比，磨损率降低了65%。这些改进是由于晶粒细化、界面结合增强和摩擦保护膜的形成。这项研究强调了Ni-Co-GO复合涂层在需要高耐磨性和承载能力的应用领域的潜力，例如汽车滚珠关节轴承。

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.