Effect of Ni@MoS2 addition on the microstructure and tribological performance of β-phase matrix composite coatings

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-02-24 DOI:10.1016/j.triboint.2025.110610

Zhiqiang Zhang , Xuhui Pei , Yin Du , Ziming Yu , Xinyu Yao , Wei Zhou , Haifeng Wang

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引用次数: 0

Abstract

The NiCr-Cr₃C₂/Ni@MoS₂/Ti6Al4V self-lubricating and wear resistant composite coatings were successfully fabricated on the surface of Ti6Al4V via laser cladding. The effect of Ni@MoS₂ addition on the microstructure of the composite coating was investigated through a combination of first-principles calculations and experimental characterization. Subsequently, the intrinsic relationship between the microstructural evolution of and the wear properties of composite coatings was elucidated. The results demonstrated that the composite coatings with varying Ni@MoS₂ dosages consisted of β phases matrix, along with in-situ synthesized TiC, Ti₂Ni, Ti₂S, and TiS₃ phases. First-principles calculations and experimental results indicated that the sufficient in-situ synthesis of a lubricating phase (TiS₃) with two-dimensional layered structures and a strengthened phase (Ti₂S) effectively inhibits adhesion wear and enhances surface bearing capacity. Consequently, the composite coating containing 20 wt% Ni@MoS₂ exhibits reduced coefficient of friction (COF) and wear rates simultaneously.

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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.