提高镍铝基复合涂层的摩擦学性能：通过添加钼和纳米金刚石设计涂层成分

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2024-11-19 DOI:10.1016/j.triboint.2024.110405

Yanwen Sun , Jianhui Yuan , Min Wang , Hanyu Wang , Zhongyuan Chen , Xingyu Liu , Shaowei Li , Weiwen Zhao , Jingyi Yang

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引用次数: 0

摘要

通过激光熔覆制备了纳米金刚石/钼增强的原位合成镍铝基复合涂层。研究了这些复合涂层的显微结构、显微硬度和摩擦学特性。结果表明，涂层主要由 NiAl 和 Ni3Al 相组成。ND 和 Mo 显示出协同效应，不仅降低了涂层的孔隙率，细化了晶粒尺寸，还提高了显微硬度。此外，在 25-800 °C 的温度范围内，它们还能降低涂层的摩擦系数和磨损率。这些发现为优化镍铝基复合涂层的性能提供了宝贵的参考。

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Enhanced tribological performance of NiAl-based composite coatings: Design of the composition in coatings by addition of Mo and Nanodiamond

Nanodiamond/Mo reinforced in-situ synthesized NiAl-based composite coatings were prepared by laser cladding. The microstructure, microhardness, and tribological properties of these composite coatings were studied. The results show that the coating is mainly composed of NiAl and Ni₃Al phases. ND and Mo show a synergistic effect, which not only reduces the porosity of the coating, refines the grain size, and also improves the microhardness. In addition, in the temperature range of 25–800 °C, they reduce the friction coefficient and wear rate of the coating. These findings provide a valuable reference for optimizing the performance of NiAl-based composite coatings.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.