Evolution of microstructure, anti-oxidation and tribological properties of CrAlN and VN based coatings in a wide temperature range

IF 3.9 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Vacuum Pub Date : 2025-08-01 Epub Date: 2025-03-10 DOI:10.1016/j.vacuum.2025.114244

Liang Li , Liwei Zheng , Hao Lin , Kai Le , Yuzhen Liu , Hongyu Li , Zhenlin Yang , Shusheng Xu

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Abstract

To improve the wear resistance of Ni-based alloys at elevated temperatures, the CrAlN/VN multilayer coating was deposited by multi-arc ion plating. The wear tests at room temperature, 300, 500, and 700 °C were adopted to evaluate the tribology performance. The CrAlN/VN coating showed a dense cross-sectional structure, and the surface roughness of the multilayer coating was measured to be 85.3 nm, which is lower than that of the CrAlN coatings (101.7 nm). It indicates that the multilayer structure contributes to a smoother surface, which is beneficial for reducing friction and wear. The nanoindentation test showed that the hardness of the multilayer coating was 26.1 GPa, respectively, which was higher than those of the VN (18.8 GPa) and CrAlN (24.5 GPa) coatings. The CrAlN/VN multilayer coating displayed the lowest wear rate at 500 °C, which was about 3.2 × 10⁻⁶ mm³/N⋅m. The superior wear resistance of the multilayer coating was attributed to the formation of oxides at high temperatures. The wear rate of the coating will be significantly accelerated when the operating temperature exceeds the melting point of V₂O₅. This study provides a new strategy for the anti-wear protection of nickel-based alloys in a wide temperature range.

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CrAlN和VN基涂层在宽温度范围内的组织演变、抗氧化和摩擦学性能

为了提高ni基合金的高温耐磨性，采用多弧离子镀法制备了CrAlN/VN多层涂层。通过室温、300℃、500℃和700℃的磨损试验来评估其摩擦学性能。CrAlN/VN涂层具有致密的截面结构，多层涂层的表面粗糙度为85.3 nm，低于CrAlN涂层的101.7 nm。结果表明，多层结构有利于表面光滑，有利于减少摩擦和磨损。纳米压痕测试表明，多层涂层的硬度分别为26.1 GPa，高于VN （18.8 GPa）和CrAlN （24.5 GPa）涂层。CrAlN/VN多层涂层在500℃时的磨损率最低，约为3.2 × 10−6 mm3/N⋅m。多层涂层的优异耐磨性归因于高温下形成的氧化物。当工作温度超过V2O5的熔点时，涂层的磨损速度会明显加快。本研究为镍基合金在宽温度范围内的抗磨保护提供了一种新的策略。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.