Tribology International最新文献_第10页

Bridging physics-informed neural networks and the Stribeck curve: A Tribo-informatics approach to multi-regime lubrication analysis 连接物理信息神经网络和Stribeck曲线：多工况润滑分析的摩擦信息学方法

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-13 DOI: 10.1016/j.triboint.2026.111702

Zhangli Hou , Zishuai Wu , Zhen Li , Zhinan Zhang

Sliding bearings are critical to rotating machinery with lubrication performance governing friction and lifespan. Traditional numerical methods face efficiency-accuracy trade-offs dependent on mesh density and iteration. The emerging paradigm of tribo-informatics offers a promising alternative by integrating data-driven modeling with physical knowledge. This study develops a tribo-informatics framework to simultaneously predict the coupled pressure and film thickness distributions in sliding bearings, enabling rapid and accurate evaluation of lubrication regimes and frictional characteristics across a range of operating speeds and loads. A physics-informed neural network (PINN) is leveraged with the film geometry and pressure boundary conditions as hard constraints, while its loss function integrates two fundamental physical laws: a local differential constraint derived from the average Reynolds equation, and a global integral constraint based on the load-balance equation that incorporates both hydrodynamic and asperity contact contributions. To enhance the generalization capability for varied operating conditions, a mini-batch cumulative training strategy is implemented for multi-condition learning. A water-lubricated bearing is employed as a case study to verify the consistence of the proposed method and the finite difference method. Results demonstrate that the proposed method can simulate hydrodynamic and mixed lubrication with high precision. Specifically, the bearing’s eccentricity ratio and coefficient of friction (COF) are predicted with nearly zero error, and other tribological metrics are predicted with an average error of no more than 3.48 %. This study provides an efficient and scalable computational tool for bearing performance analysis and contributes to the data-model co-driven design and optimization of tribological systems.

滑动轴承是旋转机械的关键润滑性能控制摩擦和寿命。传统的数值方法面临着依赖于网格密度和迭代的效率-精度权衡。摩擦信息学的新兴范例通过将数据驱动的建模与物理知识相结合，提供了一个有前途的替代方案。本研究开发了一个摩擦信息学框架，以同时预测滑动轴承中的耦合压力和膜厚分布，从而能够快速准确地评估润滑制度和摩擦特性，并在一定的运行速度和负载范围内进行评估。物理信息神经网络（PINN）利用薄膜几何和压力边界条件作为硬约束，而其损失函数集成了两个基本物理定律：从平均雷诺兹方程导出的局部微分约束，以及基于负载平衡方程的全局积分约束，该方程包含流体动力和粗糙接触贡献。为了提高系统在不同工况下的泛化能力，采用小批量累积训练策略进行多工况学习。以水润滑轴承为例，验证了该方法与有限差分方法的一致性。结果表明，该方法能较好地模拟流体动力和混合润滑。具体而言，轴承偏心比和摩擦系数（COF）的预测误差几乎为零，其他摩擦学指标的预测平均误差不超过3.48 %。该研究为轴承性能分析提供了一种高效、可扩展的计算工具，有助于数据模型协同驱动的摩擦学系统设计与优化。

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引用次数: 0

Amine-functionalized MoS2–hBN hybrid nanoparticles for enhanced tribological and thermal performance of gasoline engine oil 胺功能化MoS2-hBN杂化纳米颗粒增强汽油机润滑油的摩擦学和热性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-12 DOI: 10.1016/j.triboint.2026.111698

Thachnatharen Nagarajan , Kalaimani Markandan , Rashmi Walvekar , Seitkhan Azat , Mohammad Khalid

Amine-functionalized MoS₂–hBN hybrid nanoparticles were synthesized via a rapid, energy-efficient microwave-assisted route and assessed as multifunctional additives for SAE 5W40 engine oil. Microwave-assisted growth promoted uniform MoS₂ nucleation on hBN, yielding a stable, well-dispersed hybrid with strong interfacial synergy. At an ultralow loading of 0.01 wt%, the nanolubricant achieved a 50.8 % reduction in friction coefficient and a 33.3 % decrease in wear scar diameter compared to the base oil. In addition, the oxidation induction time and thermal conductivity improved by 25.6 % and 20 %, respectively. These enhancements were attributed to the formation of a dense, load-bearing MoS₂–hBN tribofilm, improved heat dissipation, and amine-assisted antioxidant activity. These results demonstrate a scalable and energy-efficient strategy for high-performance engine oil additives.

通过快速、高效的微波辅助方法合成了胺功能化MoS2-hBN杂化纳米颗粒，并对其作为SAE 5W40发动机润滑油的多功能添加剂进行了评估。微波辅助生长促进了MoS2在hBN上的均匀成核，产生了稳定、分散良好、界面协同作用强的杂化物。在0.01 wt%的超低负荷下，与基础油相比，纳米润滑剂的摩擦系数降低了50.8% %，磨损疤痕直径降低了33.3% %。此外，氧化诱导时间和导热系数分别提高了25.6 %和20 %。这些增强是由于形成了致密的、承重的MoS2-hBN摩擦膜，改善了散热和胺辅助抗氧化活性。这些结果证明了一种可扩展且节能的高性能发动机润滑油添加剂策略。

引用次数: 0

Crystallinity-tailored WS2/MACs gel hybrid lubricants for improved space tribological performance 结晶度定制的WS2/MACs凝胶混合润滑剂，改善空间摩擦学性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-12 DOI: 10.1016/j.triboint.2026.111699

Qinglin Ye , Jun He , Zhaowang Li , Desheng Wang , Jiayi Sun , Ming Hu , Lijun Weng

Solid-gel hybrid lubricating systems are emerging as a promising candidate for next-generation space lubrication. Herein, three distinct WS₂ films with tailored crystallinity, namely highly crystalline, nanocrystalline (NC-WS₂), and amorphous, were deposited by magnetron sputtering. These WS₂ films exhibited a comparable friction coefficient (COF) averaging 0.034, but their wear life reduced from 4.38 × 10⁵ to 2.07 × 10⁵ revolutions as crystallinity decreased. The WS₂/MACs gel hybrid lubricants demonstrated exceptional performance enhancement, achieving a wear life exceeding 6.0 × 10⁵ revolutions. Notably, the NC WS₂/MACs gel system exhibited optimal tribological characteristics, delivering the lowest recorded COF of 0.047 ± 0.002 and an ultralow wear rate of 2.70 × 10⁻⁸ mm³/N·m. Mechanisms reveal that onion-like nanostructures enhance oil penetration, while the gel network provides dual wear protection via debris encapsulation and tribo-induced in-situ graphitization. This work offers a viable technical solution for space lubrication, supporting the development of more durable spacecraft and expanding the boundaries of space exploration.

固体-凝胶混合润滑系统正在成为下一代空间润滑的有前途的候选者。本文采用磁控溅射法制备了三种不同结晶度的WS2薄膜，即高晶、纳米晶（NC-WS2）和非晶。这些WS2薄膜的摩擦系数（COF）平均为0.034，但随着结晶度的降低，其磨损寿命从4.38 × 105转降低到2.07 × 105转。WS2/MACs凝胶混合润滑油表现出卓越的性能增强，实现了超过6.0 × 105转的磨损寿命。值得注意的是，NC WS2/MACs凝胶体系具有最佳的摩擦学特性，具有最低的COF（0.047 ± 0.002）和超低的磨损率（2.70 × 10−8 mm3/N·m）。机理表明，洋葱状纳米结构增强了油的渗透性，而凝胶网络通过碎屑封装和摩擦诱导的原位石墨化提供双重磨损保护。这项工作为空间润滑提供了可行的技术解决方案，支持开发更耐用的航天器，扩大空间探索的边界。

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引用次数: 0

Multiscale coupling analysis of macro–micro structural fractality and chaotic behaviour in a tribological system 摩擦学系统宏微观结构分形与混沌行为的多尺度耦合分析

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-12 DOI: 10.1016/j.triboint.2026.111695

Cong Ding , Yan Zhao , Chuansheng Gong , Jianfei Han , Yukai Tian , Zhenyu Zhou , Qiuyang Zheng , Wentao Hou , Zhongyu Piao

To elucidate the nonlinear dynamic behaviour of friction and the multiscale evolution of microstructures during wear, fractal theory was innovatively introduced to characterise cross-sectional microstructures, and the correlation between the wear behaviour and subsurface structural evolution was quantitatively examined. Stepwise wear experiments were performed, through which the coefficient of friction (COF), two-dimensional (2D) profiles, three-dimensional (3D) worn surface morphologies, and cross-sectional microstructures were obtained. Chaos theory and fractal analysis were respectively applied to extract the nonlinear characteristics of the COF signal and the multiscale features of the surface and subsurface structures. The results show that the low-angle grain boundaries (LAGBs) exhibit a fractional fractal dimension D_b between 1 and 2, confirming the intrinsic fractal nature of the worn subsurface. With increasing frictional stress and thermal effects, the kernel average misorientation (KAM), dislocation density, and LAGB fraction follow an increase–stabilization–increase evolution across different wear stages. Strong correlations are observed between the microstructural fractal dimension D_b and the chaotic complexity of the COF (| ρ | > 0.8), as well as with the fractal dimensions of the 2D and 3D surface morphologies. These results demonstrate that the multiscale and highly coupled subsurface microstructure can be effectively revealed through the chaotic characteristics of the COF and the fractal features of the worn surface topography, providing a new approach for wear characterization and microstructural inference based on macroscopic measurements.

为了阐明摩擦的非线性动力学行为和磨损过程中微观组织的多尺度演化，创新性地引入分形理论来表征横截面微观组织，并定量分析了磨损行为与地下结构演化的相关性。通过逐步磨损实验，获得了摩擦系数（COF）、二维（2D）轮廓、三维（3D）磨损表面形貌和截面显微组织。利用混沌理论和分形分析分别提取了COF信号的非线性特征以及地表和地下结构的多尺度特征。结果表明：低角晶界的分形维数Db在1 ~ 2之间，证实了磨损亚表面固有的分形特性；随着摩擦应力和热效应的增加，晶核平均取向偏差（KAM）、位错密度和LAGB分数在不同的磨损阶段遵循增加-稳定-增加的演化规律。观察到微观结构分形维数Db与COF的混沌复杂度（| ρ | > 0.8）以及二维和三维表面形貌的分形维数之间存在很强的相关性。这些结果表明，通过COF的混沌特征和磨损表面形貌的分形特征可以有效地揭示多尺度、高耦合的地下微观结构，为基于宏观测量的磨损表征和微观结构推断提供了新的方法。

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引用次数: 0

Effect of Zr content on the microstructure, mechanical and tribological performance of TiAlSi(Zr)N coatings Zr含量对TiAlSi(Zr)N涂层显微组织、力学性能和摩擦学性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-11 DOI: 10.1016/j.triboint.2026.111696

Ruihao Zhang , Jinfu Zhao , Zhanqiang Liu , Bing Wang , Qinghua Song , Jiru Wang , Yukui Cai

Arc-ion-plated Ti–Al–Si–Zr nitride coatings with 0–21 at% Zr were deposited on cemented carbide to isolate the Zr effect. Up to ∼9 at% Zr, lattice distortion and grain refinement were evidenced by the broadened cubic nitride reflections; at higher Zr contents, ZrN precipitation accompanied by lamellar/porous features indicated phase separation. The ∼9 at% Zr coating delivered the best overall performance, reaching a peak hardness of 38.4 GPa and the highest scratch adhesion (Lc₂ = 89 N), together with the most stable friction and lowest wear. These results show that Zr improves Ti–Al–Si nitride coatings mainly through solid-solution strengthening and grain refinement within its solubility limit, whereas excessive Zr degrades integrity via phase separation and interfacial weakening. An optimal Zr level of ∼9 at% provides a practical compositional guideline for advanced cutting-tool coatings.

在硬质合金上沉积了0-21 % Zr的电弧离子镀Ti-Al-Si-Zr氮化物涂层，以隔离Zr效应。在% Zr高达~ 9时，晶格畸变和晶粒细化表现为展宽的立方氮化物反射；在较高Zr含量时，ZrN析出伴随着层状/多孔特征，表明相分离。Zr ~ 9 at% Zr涂层具有最佳的综合性能，达到峰值硬度38.4 GPa和最高划痕附着力（Lc2 = 89 N），同时具有最稳定的摩擦和最低的磨损。结果表明，Zr对Ti-Al-Si氮化物镀层的改善主要通过固溶强化和溶解度范围内的晶粒细化来实现，而过量的Zr则通过相分离和界面弱化来降低镀层的完整性。Zr的最佳含量为~ 9 at%，为先进的刀具涂层提供了实用的成分指南。

引用次数: 0

Co-located dual-wave ultrasonics for lubricant film thickness and interfacial temperature monitoring 定位双波超声用于润滑油膜厚度和界面温度监测

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-09 DOI: 10.1016/j.triboint.2026.111690

Pan Dou, Yifeng Zhang, Bo Lan, Frederic Cegla, Thomas Reddyhoff, Min Yu

A lubricant film separates metal-to-metal contacts and is critical for industrial components such as bearings, engines, and transmissions, to assure their durability and energy efficiency. The lubricant film thickness can reflect oil rheological properties and thus its degradation, while the interfacial temperature variation is mainly caused by friction heating that can reflect wear conditions. Therefore, simultaneous monitoring of these two key variables will enable comprehensive characterization of the lubrication condition, facilitating predictive maintenance of energy equipment. Traditional ultrasonic measurement techniques based on longitudinal waves have been widely employed for monitoring lubricant film thickness; however, the acoustic velocity in such methods is highly sensitive to temperature and lacks effective compensation mechanisms. This severely limits their applicability in high-precision scenarios. To address this issue, this paper proposes a hybrid ultrasonic measurement approach that employs co-located longitudinal and shear waves. Shear waves propagate only in solids and are unaffected by the lubricant film, while longitudinal waves travel through both solids and liquids. Thus, the method utilizes the longitudinal wave to estimate film thickness and the shear wave to evaluate solid temperature and infer interfacial temperature. This temperature information is then used to improve estimates of the phase of the wave that is propagating in the solid medium and the assumed acoustic velocity in the lubricating film, thereby enhancing the accuracy and robustness of thickness measurements. Experimental validation was conducted on both a heating plate and a rheometer system. The temperature experiments demonstrated the feasibility of using ultrasound to measure temperature gradients within solids. On the rheometer platform, practical lubrication conditions were simulated by adjusting the upper plate temperature, allowing for further evaluation of the shear-wave-based temperature sensing method. Experimental results confirm that the proposed method can accurately obtain interfacial temperatures and compensate for temperature-induced errors in the lubricant film thickness measurements.

润滑膜将金属与金属之间的接触分离开来，对于轴承、发动机和变速器等工业部件至关重要，可以确保它们的耐用性和能效。润滑油膜厚度可以反映油的流变特性，从而反映油的降解，而界面温度变化主要是由摩擦加热引起的，可以反映磨损情况。因此，同时监测这两个关键变量将能够全面表征润滑状况，促进能源设备的预测性维护。传统的基于纵波的超声测量技术被广泛应用于润滑油膜厚度的监测；然而，这种方法的声速对温度高度敏感，缺乏有效的补偿机制。这严重限制了它们在高精度场景中的适用性。为了解决这一问题，本文提出了一种利用纵波和横波同位的混合超声测量方法。横波只在固体中传播，不受润滑剂膜的影响，而纵波在固体和液体中都能传播。因此，该方法利用纵波估计薄膜厚度，利用横波评估固体温度并推断界面温度。然后利用这些温度信息来改进对在固体介质中传播的波的相位和润滑膜中假设的声速的估计，从而提高厚度测量的准确性和稳健性。在加热板和流变仪系统上进行了实验验证。温度实验证明了利用超声波测量固体内部温度梯度的可行性。在流变仪平台上，通过调整上板温度模拟实际润滑条件，为进一步评估基于剪切波的温度传感方法提供依据。实验结果表明，该方法能准确地获得界面温度，并能补偿油膜厚度测量中的温度误差。

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引用次数: 0

Active recess compensation for aerostatic thrust bearings with secondary amplifiers: Theoretical predictions and experimental measurements 带二次放大器的空气静压推力轴承主动凹槽补偿：理论预测和实验测量

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-09 DOI: 10.1016/j.triboint.2026.111689

Peng Wang , Tingfeng Li , Yanshu Li , Jian Li , Wenjun Li , Kai Feng

Aerostatic bearings, as a crucial element of precision engineering, are utilized in various devices that demand precision and ultra-precision movements. This paper proposes an active compensation method designed to adapt to changes in the working environment and assist aerostatic bearings with recesses in maintaining high stiffness. The compensation of recess depth using distributed piezoelectric actuators and a secondary amplifier mechanism is a promising approach to enhance the stiffness characteristics of aerostatic bearings. Piezoelectric actuators provide the necessary driving displacement and force, while the amplifier mechanism amplifies displacement variations to achieve recess depth adjustment. Theoretical analysis demonstrates that stiffness behavior can be significantly improved through recess compensation. Experimental setups have also been constructed to measure the static performance and evaluate the vibration characteristics of aerostatic bearings. The measured data for load capacity and stiffness characteristics align well with theoretical calculations. Furthermore, vibration characteristics indicate that aerostatic bearings can achieve high stability performance by actively controlling the recess depth.

空气静压轴承作为精密工程的关键部件，应用于各种要求精密和超精密运动的设备中。本文提出了一种主动补偿方法，旨在适应工作环境的变化，帮助带凹槽的空气静压轴承保持高刚度。利用分布式压电作动器和二次放大机构对凹槽深度进行补偿是提高空气静压轴承刚度特性的一种很有前途的方法。压电驱动器提供必要的驱动位移和力，放大机构放大位移变化以实现凹槽深度调节。理论分析表明，通过间隙补偿可以显著改善结构的刚度性能。建立了测量静压轴承静态性能和评价其振动特性的实验装置。承载能力和刚度特性的实测数据与理论计算结果吻合良好。此外，振动特性表明，通过主动控制凹槽深度，空气静压轴承可以获得较高的稳定性能。

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引用次数: 0

Mo2N coating for improved wear resistance of 42CrMo alloy via ultrasonic strengthening grinding Mo2N涂层通过超声强化磨削提高42CrMo合金的耐磨性

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-09 DOI: 10.1016/j.triboint.2026.111688

Jinsheng Cui , Fenghong Gao , Gongbin Tang , Yipin Zhang , Wu Guo , Xuelian Xie , Zhongwei Liang

42CrMo alloy steel is widely used in mechanical components and engineering structures owing to its excellent mechanical strength and wear resistance. However, its tribological properties significantly deteriorate under high-temperature and heavy-load conditions, resulting in accelerated wear and shortened service life. This study employed a simple technique, namely Ultrasonic Strengthening Grinding Process (SGP). This technique combines ultrasonic shot peening with the incorporation of molybdenum nitride (Mo₂N) powder to create a dense composite strengthening layer on 42CrMo steel. At 400 °C, the friction coefficient and wear rate of the SGP-treated specimen dropped by approximately 16.9 % and decreased by 78.0 %, respectively. Detailed experimental analysis reveals that the enhanced medium-high temperature tribological performance of 42CrMo steel stems from the synergistic effect between surface grain refinement and Mo₂N powder incorporation. The results confirm that the SGP treatment is a viable technique to significantly enhance the wear resistance of 42CrMo alloy steel.

42CrMo合金钢因其优异的机械强度和耐磨性被广泛应用于机械部件和工程结构中。然而，在高温和重载条件下，其摩擦学性能显着恶化，导致加速磨损和缩短使用寿命。本研究采用了一种简单的超声强化磨削工艺（SGP）。该技术将超声波喷丸强化与加入氮化钼（Mo2N）粉末相结合，在42CrMo钢上形成致密的复合强化层。在400℃时，sgp处理试样的摩擦系数和磨损率分别下降了约16.9 %和78.0 %。详细的实验分析表明，42CrMo钢中高温摩擦学性能的增强源于表面晶粒细化和Mo2N粉掺入的协同作用。结果表明，SGP处理是一种有效提高42CrMo合金钢耐磨性的方法。

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引用次数: 0

In-situ self-sensing method for magnetically controlled friction of magnetorheological elastomers and experimental verification 磁流变弹性体磁控摩擦的原位自传感方法及实验验证

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-09 DOI: 10.1016/j.triboint.2026.111693

Rui Li , Yuqi He , De Zhang , Ping-an Yang , Qiao Chen , Xinglong Gong , Chul-Hee Lee , Mengjie Shou

Conventional rubber materials lack the capability for in situ and real-time perception of interfacial friction states, limiting their applications in intelligent fields such as adaptive friction control. To address this limitation, this study proposes a magnetorheological elastomer (MRE) composite system embedded with a flexible sensor array, enabling in situ self-sensing and active regulation of frictional states. A beam–spring interfacial mechanics model is developed to establish a multiscale coupling mapping among normal pressure, tangential friction, internal deformation, and relative resistance variation, elucidating the fundamental mechanism of friction modulation under a magnetic field. A flexible fiber sensor based on graphene/polydimethylsiloxane (GR/PDMS) is fabricated, demonstrating high sensitivity (GF = 73.75,

R^{2} = 0.951

), excellent cyclic stability (>3000 cycles), and a wide linear response range, while preserving the elastic modulus and load-bearing capacity of the rubber matrix. Furthermore, an in situ sliding friction testing platform is established to evaluate the self-sensing capability of the MRE under varying normal pressures (1–3 N), sliding paths (linear and diagonal), and magnetic flux densities (0–270 mT). The results show excellent agreement between the measured and predicted friction forces, confirming the accuracy and reliability of the MRE composite structure for in situ friction state identification.

传统橡胶材料缺乏对界面摩擦状态的现场实时感知能力，限制了其在自适应摩擦控制等智能领域的应用。为了解决这一限制，本研究提出了一种嵌入柔性传感器阵列的磁流变弹性体（MRE）复合系统，可以实现原位自传感和主动调节摩擦状态。建立了梁-弹簧界面力学模型，建立了法向压力、切向摩擦、内部变形和相对阻力变化之间的多尺度耦合映射，阐明了磁场作用下摩擦调制的基本机理。制备了一种基于石墨烯/聚二甲基硅氧烷（GR/PDMS）的柔性光纤传感器，具有高灵敏度（GF = 73.75,R2=0.951）、良好的循环稳定性（>；3000次循环）和宽线性响应范围，同时保持了橡胶基体的弹性模量和承载能力。此外，建立了原位滑动摩擦测试平台，评估了MRE在不同法向压力（1 ~ 3 N）、滑动路径（线性和对角线）和磁通密度（0 ~ 270 mT）下的自感知能力。结果表明，实测摩擦力与预测摩擦力吻合良好，验证了MRE复合材料结构原位摩擦状态识别的准确性和可靠性。

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引用次数: 0

Synthesis, structural and tribological properties of tailored MoSex / WSx based coatings for multi-environment industrial applications 用于多环境工业应用的定制MoSex / WSx基涂料的合成、结构和摩擦学性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-09 DOI: 10.1016/j.triboint.2026.111691

Talha Bin Yaqub , Filipe Fernandes , Hongbo Ju , Amessalu Atenafu Gelaw , Fabio Ferreira , Mitjan Kalin , Albano Cavaleiro , Manuel Evaristo

Transition metal dichalcogenide (TMD) coatings have been employed as industrial low friction solid lubricants for machine components operating in vacuum and dry environments. However, their properties degrade in ambient air due to low moisture resistance. Moreover, the pure TMD coatings possess high porosity, low oxidation resistance, and poor adhesion to substrates, leading to easy mechanical exfoliation. In this study, a novel approach of multilayered architecture of coatings deposited from MoSe₂ and WS₂ targets, with varying period thickness had been introduced as potential solution for components operating in multi-environments. A series of monolayer and multilayered coatings were deposited using DC (direct current) magnetron sputtering technique, to study the influence of coating architecture on the composition, morphology, structure, mechanical and sliding response. The sliding tests were conducted under various conditions, including normal air, dry nitrogen, and multiple temperatures (25 °C, 100 °C, and 200 °C). From 25 °C to 100 °C, temperature increase removed moisture, generally reducing friction, except for the MoSe_x coating, which performed better at room temperature. At 200 °C, wear and friction increased significantly due to enhanced tribo-oxidation. The wear performance in dry nitrogen follows the same trend observed in normal air, but with reduced values. The coatings depicted promising sliding properties in diverse environments with temperature applicability limited to 100 °C. The coating with the lowest period demonstrated the best overall mechanical and tribological performance under the tested conditions selected for this work. The friction was mainly influenced by the atmosphere, while temperature significantly affected both friction and wear performance.

过渡金属二硫化物（TMD）涂层已被用作工业低摩擦固体润滑剂，用于在真空和干燥环境下运行的机器部件。然而，由于抗湿性低，它们的性能在环境空气中会退化。此外，纯TMD涂层孔隙率高，抗氧化性低，与基材的附着力差，容易机械脱落。在本研究中，引入了一种由MoSe2和WS2靶材沉积的多层结构涂层的新方法，该方法具有不同的周期厚度，作为在多环境下运行的组件的潜在解决方案。采用直流（直流）磁控溅射技术沉积了一系列单层和多层涂层，研究了涂层结构对镀层组成、形貌、结构、力学和滑动响应的影响。滑动试验在各种条件下进行，包括正常空气、干氮气和多种温度（25°C、100°C和200°C）。从25°C到100°C，温度升高会去除水分，通常会减少摩擦，但MoSex涂层在室温下表现更好。在200°C时，由于摩擦氧化增强，磨损和摩擦显著增加。干氮气中的磨损性能遵循在正常空气中观察到的相同趋势，但值有所降低。该涂层在不同环境下具有良好的滑动性能，温度适用性限制在100°C。在本工作所选择的测试条件下，具有最低周期的涂层表现出最佳的整体机械和摩擦学性能。摩擦性能主要受气氛的影响，而温度对摩擦性能和磨损性能均有显著影响。

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引用次数: 0