Tribology International最新文献_第10页

Superior friction and wear performance of alloy Ti4Al6V lubricated by a novel green material yam: A comparative tribological study 新型绿色材料yam润滑Ti4Al6V合金的优异摩擦磨损性能：比较摩擦学研究

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111575

Yatong Zhang , Zhiguang Guo , Weimin Liu

As a type of green lubricant, yam mucilage possesses a layered molecular structure with excellent composite lubrication properties. Considering the superior lubrication and friction-reducing effects of layered double hydroxides, this study explored the lubrication mechanisms and tribological properties of yam mucilage when applied as a lubricant. Given the poor wear resistance of Ti6Al4V (TC4) alloy, systematic tests were conducted to evaluate the lubrication, friction reduction, and wear resistance performance of yam mucilage under different loads, with dry friction and graphite-coated friction serving as controls. Notably, although both yam mucilage and graphite exhibit layered molecular structures at the microscopic level, yam mucilage demonstrated significantly better performance: under identical conditions, it reduced the average coefficient of friction by about 60.70 % compared with graphite-coated friction and by about 59.30 % compared with dry friction. In addition, yam mucilage markedly enhanced the wear resistance of the TC4 substrate, reducing the average wear volume by 69.77 % relative to dry friction and by 76.52 % relative to graphite-coated friction. These improvements are primarily attributed to the adsorption of yam mucilage molecules on the TC4 surface and the elastohydrodynamic lubrication generated during sliding, which facilitated the formation of a friction-induced in-situ protective film with self-healing capability. Overall, the use of yam mucilage lubricant, combined with the elastohydrodynamic lubrication formed against the TC4 alloy surface, promoted a friction-induced in-situ film formation mechanism that effectively protected the TC4 alloy substrate from severe wear.

山药黏液具有层状的分子结构，具有优异的复合润滑性能，是一种绿色润滑剂。考虑到层状双氢氧化物优异的润滑和减摩效果，本研究探讨了山药黏液作为润滑剂时的润滑机理和摩擦学性能。针对Ti6Al4V （TC4）合金耐磨性较差的特点，以干摩擦和涂石墨摩擦为对照，对山药黏液在不同载荷下的润滑、减摩和耐磨性能进行了系统的试验研究。值得注意的是，虽然山药黏液和石墨在微观水平上都表现出分层的分子结构，但山药黏液表现出明显更好的性能：在相同的条件下，山药黏液与涂有石墨的摩擦相比，平均摩擦系数降低了约60.70 %，与干摩擦相比，平均摩擦系数降低了约59.30 %。此外，山药黏液显著提高了TC4基体的耐磨性，相对于干摩擦，TC4基体的平均磨损量减少了69.77 %，相对于涂石墨摩擦，TC4基体的平均磨损量减少了76.52 %。这些改进主要归功于山药黏液分子在TC4表面的吸附和滑动过程中产生的弹流动力润滑，这有助于形成具有自修复能力的摩擦原位保护膜。总体而言，山药黏液润滑剂的使用与TC4合金表面形成的弹流动力润滑相结合，促进了摩擦诱导的原位膜形成机制，有效地保护了TC4合金衬底免受严重磨损。

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引用次数: 0

Effect of graphene on microstructure and tribological properties of FLG/SiC/TC4 composites prepared by vacuum arc melting 石墨烯对真空电弧熔炼FLG/SiC/TC4复合材料微观结构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 : 2025-12-12 DOI: 10.1016/j.triboint.2025.111574

Rongyang Zhao , Baoxian Su , Yinling Jin , Zhenjie Cui , Binbin Wang , Xiangyu Sun , Bao Ding , Chao Xu , Eshov Bakhtiyor , Chen Liu , Liang Wang , Yanqing Su

Ti-6Al-4V (TC4) alloy, characterized by low density, high tensile and fatigue strengths, and excellent corrosion resistance, is a vital material widely used in aerospace, chemical engineering, energy, and biomedicine. However, its poor strain-hardening effect and weak protective mechanically mixed layer (MML, a surface layer formed by mechanical actions with material mixing) limit its tribological applications. In this study, few-layer graphene (FLG)/SiC/TC4 composites were fabricated via vacuum arc melting, with SiC added to suppress the reaction between FLG and the matrix. The effects of FLG content on mechanical properties and wear resistance were investigated. Results show that moderate FLG addition promotes the formation of a continuous, dense MML during dry friction, protecting the matrix and lowering the wear rate. The composite with 0.4 wt% FLG shows excellent tensile strength and wear resistance, with its tensile strength increasing from 839.57 MPa of pure TC4–939.25 MPa, the depth of plastic deformation zone after wear becoming shallower, and the wear rate significantly decreasing by 52.15 %.

Ti-6Al-4V （TC4）合金具有密度低、抗拉强度和疲劳强度高、耐腐蚀性能优异等特点，是广泛应用于航空航天、化工、能源、生物医药等领域的重要材料。然而，其应变硬化效果差，保护性机械混合层（MML，材料混合形成的机械作用表面层）薄弱，限制了其摩擦学应用。本研究采用真空弧熔法制备了少层石墨烯(FLG)/SiC/TC4复合材料，加入SiC抑制FLG与基体的反应。研究了FLG含量对材料力学性能和耐磨性的影响。结果表明：适量添加FLG可促进干摩擦过程中连续致密的MML的形成，保护基体，降低磨损率；含有0.4 wt% FLG的复合材料具有优异的抗拉强度和耐磨性，其抗拉强度从纯tc4的839.57 MPa提高到939.25 MPa，磨损后塑性变形区深度变浅，磨损率显著降低52.15 %。

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引用次数: 0

Blade/abradable test rig enhancement for the study of contacts at very high speed, high temperature under controlled incursion depth 叶片/可磨耗试验台的改进，用于研究在高速、高温下控制侵入深度的接触

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111578

J. Vincent, B. Chevrier, S. Philippon

To meet stringent

C O_{2}

reduction targets, aircraft engine efficiency must be improved by minimizing inter-stage leakage, which can be reached via abradable coatings. However, premature wear of these coatings can significantly diminish overall performance of the turbojet engine. To understand wear mechanisms activation, a ballistic bench-based test rig has been developed over the years in order to enable blade/abradable linear interaction tests while exerting precise control over contact speed, coating temperature, and depth of incursion (DoI). By considering that only single touch interaction tests are permitted throughout this facility, the main objective was to perform interaction tests with the smallest, yet constant, depth of incursion. A novel projectile design, associated to a guidance system, have been able to meet this requirement. This research study focuses also on further developments concerning enhanced high-speed imaging and temperature distribution over the abradable coating specimens. It aims to deliver deeper insights into the multi-physical phenomena at play during blade/abradable contact, providing clearer correlations between test parameters and observed wear behavior.

为了达到严格的二氧化碳减排目标，飞机发动机必须通过减少级间泄漏来提高效率，这可以通过耐磨涂层来实现。然而，这些涂层的过早磨损会显著降低涡轮喷气发动机的整体性能。为了了解磨损机制的激活，多年来开发了一种基于弹道试验台的试验台，以便在对接触速度、涂层温度和侵入深度（DoI）进行精确控制的同时，实现叶片/可磨蚀性线性相互作用测试。考虑到在整个设施中只允许进行单点触摸交互测试，主要目标是以最小但恒定的侵入深度进行交互测试。一种与制导系统相结合的新型弹体设计已经能够满足这一要求。本研究还着重于进一步发展增强高速成像和温度分布在可磨涂层样品。它旨在更深入地了解刀片/可磨耗材料接触过程中的多物理现象，提供更清晰的测试参数与观察到的磨损行为之间的相关性。

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引用次数: 0

Study on the role of Nb addition on the tribological behavior of CoNiCrMo-based high entropy amorphous alloy coatings fabricated by HVAF 添加Nb对HVAF法制备conicrmo基高熵非晶合金涂层摩擦学行为的影响研究

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111573

Baosen Zhang , Shuaishuai Zhu , Chao Zhang , Xuewei Tao , Caidong Xie , Ziyan Xu

The CoNiCrMo-based high-entropy amorphous alloy coatings with different Nb contents were fabricated using the HVAF spraying technology. The addition of Nb significantly enhanced the coating properties, including hardness, elastic modulus, resistance to plastic deformation, and wear resistance. The dominant wear mechanisms of the fabricated coatings at room temperature were identified as oxidative wear, abrasive wear, and adhesive wear. The incorporation of Nb promoted the formation of an oxide layer on the friction interface, which reduced both the running-in period and the steady-state friction coefficient. The coatings exhibited excellent structural stability under the combined action of friction stress and thermal exposure. The subsurface region of the wear track remained predominantly amorphous, with finely dispersed (Cr, Mo)_xB precipitates (25–52 nm in size) formed within the amorphous matrix. It resulted in a composite microstructure consisting of hard (Cr, Mo)_xB phases embedded in the soft amorphous matrix, which not only improved the load-bearing capacity of the coating but also promoted strain delocalization in the subsurface region during the wear process.

采用HVAF喷涂技术制备了不同铌含量的conicrmo基高熵非晶合金涂层。Nb的加入显著提高了涂层的硬度、弹性模量、抗塑性变形和耐磨性等性能。室温下涂层的主要磨损机制为氧化磨损、磨粒磨损和粘着磨损。Nb的加入促进了摩擦界面上氧化层的形成，降低了磨合期和稳态摩擦系数。在摩擦应力和热暴露的共同作用下，涂层表现出优异的结构稳定性。磨损轨迹的亚表面区域以非晶态为主，在非晶态基体内形成了细小分散的（Cr, Mo）xB相（尺寸为25-52 nm）。在软非晶基体中嵌套了硬（Cr, Mo）xB相的复合组织，不仅提高了涂层的承载能力，而且在磨损过程中促进了亚表面区域的应变离域。

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引用次数: 0

Computational modelling of fluid transport in poroelastic interfaces 孔隙弹性界面中流体输运的计算模型

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111541

Arshad Kalathil Ashik , Carmine Putignano , Daniele Dini

Porous interfaces are ubiquitous in nature. Their load bearing capacity, typical of e.g. articular cartilage, has often been exploited by engineers to develop porous bearings, whose design and operation must account for the flow of the lubricating medium through the contacting interface. Improper fluid transport to a porous bearing can damage its internal network and lead to operational failure. Depending on the operating conditions, the bearing transitions between boundary and hydrodynamic lubrication regimes. To accurately understand fluid flow behaviour, both the porous bearing and the lubricating fluid must be analysed as a coupled system. In this work, we developed a new fluid–solid coupled soft porous bearing model that can be used to study all lubricating conditions, analyse the fluid flow pattern, and evaluate the function and load bearing capacity of the porous interface. We also propose an approximate relation between flow factors and permeability, which captures the sealing effect that contacting asperities introduce and is used to incorporate varying permeability along the contact interface. Additionally, the model takes into account surface roughness and both fluid and solid pressures in the film thickness calculation. This coupled approach offers key insights into the interplay between the flow of the lubricant into the porous medium and the fluid film by predicting when the lubricant begins to enter the porous bearing and by explicitly capturing interactions in the contact region through which it interacts with the porous network. The model predicts a non-linear increase in fluid flow into the bearing as the porous bearing operates in the hydrodynamic regime. Overall, this numerical model provides a deeper understanding of fundamental lubrication mechanisms and serves as a valuable tool for analysing and designing soft bearings for industrial and biomedical applications, including human joints.

多孔界面在自然界中无处不在。它们的承载能力，例如典型的关节软骨，经常被工程师用来开发多孔轴承，其设计和操作必须考虑润滑介质通过接触界面的流动。不适当的流体输送到多孔轴承会损坏其内部网络并导致运行故障。根据运行条件，轴承在边界润滑和流体动力润滑之间转换。为了准确地理解流体的流动行为，必须将多孔轴承和润滑流体作为一个耦合系统进行分析。本文建立了一种新的流固耦合软孔轴承模型，可用于研究各种润滑工况，分析流体流动模式，评估多孔界面的功能和承载能力。我们还提出了流动因素与渗透率之间的近似关系，该关系捕捉了接触颗粒引入的密封效果，并用于包含沿接触界面变化的渗透率。此外，该模型在计算膜厚时考虑了表面粗糙度以及流体和固体压力。这种耦合方法通过预测润滑剂何时开始进入多孔轴承，并通过明确捕获与多孔网络相互作用的接触区域中的相互作用，为润滑剂进入多孔介质和流体膜之间的相互作用提供了关键的见解。该模型预测，当多孔轴承在流体动力状态下工作时，进入轴承的流体流量呈非线性增加。总的来说，这个数值模型提供了对基本润滑机制的更深入的理解，并作为分析和设计工业和生物医学应用（包括人体关节）软轴承的有价值的工具。

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引用次数: 0

Integrated evaluation of wear and drilling behavior in TiC-reinforced B319 aluminum composites tic增强B319铝复合材料磨损与钻削性能综合评价

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111577

Ufuk Taşcı , Yafes Çavuş , Taha Alper Yılmaz , Halil Karakoç , Şener Karabulut

In this work, B319 aluminum matrix composites reinforced with 5 and 10 wt% TiC were fabricated via high-energy ball milling followed by hot pressing. The effects of TiC content on microstructure, hardness, tribological behavior, and drilling machinability were systematically evaluated. Incorporating TiC refined the microstructure and increased hardness from 84.4 to 102.5 HV0.5 (≈21 % improvement), while relative density showed only a slight reduction. Under dry sliding conditions, wear loss and specific wear rate decreased by 52 % and 36 %, respectively, accompanied by a reduction in the coefficient of friction from 0.548 to 0.484. Drilling tests revealed that feed rate exerted a stronger influence on thrust force and torque than cutting speed, with the most favorable machinability obtained at 100 m/min and 0.05 mm/rev. Overall, 5 wt% TiC reinforcement offered the optimal balance of wear resistance and machinability, demonstrating the dual functional role of TiC in enhancing both tribological and machining performance of powder-metallurgy B319 composites.

采用高能球磨+热压法制备了含5%和10% wt% TiC增强的B319铝基复合材料。系统评价了TiC含量对显微组织、硬度、摩擦学性能和钻削加工性的影响。添加TiC细化了显微组织，使硬度从84.4提高到102.5 HV0.5(≈21 %)，而相对密度仅略有降低。干滑动条件下，磨损损失和比磨损率分别下降了52 %和36 %，摩擦系数从0.548降低到0.484。钻削试验表明，进给速度对推力和扭矩的影响大于切削速度，在100 m/min和0.05 mm/rev时切削性能最佳。总体而言，5 wt%的TiC增强剂提供了耐磨性和可加工性的最佳平衡，证明了TiC在提高粉末冶金B319复合材料的摩擦学和加工性能方面的双重功能。

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引用次数: 0

Microstructural and tribological evolution of Ti-doped amorphous carbon coatings with varying structures 不同结构掺钛非晶碳涂层的显微组织和摩擦学演变

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111571

Zhihao Chen , Jian Wu , Qiandiao Wei , Benlong Su , Youshan Wang

Amorphous carbon coatings exhibit excellent anti-wear and self-lubricating properties; the structural variations and elemental doping result in complex and variable tribological behavior. To further understand these effects, titanium (Ti) doping was employed to modulate the atomic structure and frictional behavior of amorphous carbon coatings with different densities through molecular dynamics (MD) simulations. The results reveal that the morphology of Ti atoms depends on both the doping ratio and coating density. Moderate Ti incorporation promotes Ti-C bond formation and enhances the sp³ C ratio, improving structural stability and reducing interfacial adhesion with counterparts, whereas excessive Ti induces sp² C enrichment and weakens load resistance. Quantitatively, an appropriate Ti doping ratio reduces the average friction force and wear rate of selected amorphous carbon coatings by approximately 25 % and 30 %, respectively. These findings elucidate the atomic-scale mechanisms of Ti-C interactions and provide theoretical guidance for optimizing Ti-doped amorphous carbon coatings for aerospace sealing systems.

非晶碳涂层具有优异的抗磨性能和自润滑性能；结构的变化和元素的掺杂导致了复杂多变的摩擦学行为。为了进一步了解这些影响，通过分子动力学（MD）模拟，采用钛（Ti）掺杂来调节不同密度非晶碳涂层的原子结构和摩擦行为。结果表明，钛原子的形貌与掺杂比和镀层密度有关。适量Ti的掺入促进了Ti-C键的形成，提高了sp3 C比，提高了结构稳定性，降低了与对应物的界面附着力，而过量Ti则导致sp2 C富集，减弱了负载抵抗能力。定量地说，适当的Ti掺杂比例可使所选非晶碳涂层的平均摩擦力和磨损率分别降低约25 %和30 %。这些发现阐明了Ti-C相互作用的原子尺度机制，并为优化航空航天密封系统中ti掺杂非晶碳涂层提供了理论指导。

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引用次数: 0

Investigations on the interfacial diffusion and friction temperature during Cu-Cu ultrasonic bonding by molecular dynamics simulation 用分子动力学模拟研究Cu-Cu超声键合过程中界面扩散和摩擦温度

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-12 DOI: 10.1016/j.triboint.2025.111576

Zhao Li , Wenchao Tian , Liangchen Bai , Zhiqiang Chen , Yongkun Wang

Cu-Cu solid-state bonding technology is key to achieving three-dimensional (3D) integration. However, traditional Cu-Cu thermocompression bonding always requires high temperature, high pressure, and long operating time due to the limitations of easy oxidation and surface roughness of Cu. In this study, the molecular dynamics (MD) model of Cu-Cu ultrasonic bonding is proposed. The influences of typical ultrasonic parameters (compression rate, ultrasonic frequency, and ultrasonic amplitude) on atomic diffusion and friction temperature are analyzed in detail. The results indicate that appropriate ultrasonic parameters have a beneficial effect on the interfacial thickness and friction temperature. The ultrasonic bonding is more effective in promoting Cu atomic diffusion at a lower temperature compared with thermocompression bonding. The interfacial voids closed by bonding pressure and atomic diffusion promoted by ultrasonic load are the two main mechanisms of Cu-Cu ultrasonic bonding. This paper aims to provide a practical reference for optimizing the ultrasonic process of Cu-Cu solid-state bonding from an atomic perspective.

Cu-Cu固态键合技术是实现三维（3D）集成的关键。然而，传统的Cu-Cu热压键合由于Cu易氧化和表面粗糙的限制，通常需要高温、高压和长时间的操作。本文建立了Cu-Cu超声键合的分子动力学模型。详细分析了典型超声参数（压缩率、超声频率和超声振幅）对原子扩散和摩擦温度的影响。结果表明，适当的超声参数对界面厚度和摩擦温度均有有利影响。超声键合比热压键合更能有效地促进Cu原子在较低温度下的扩散。键合压力闭合界面空隙和超声载荷促进原子扩散是Cu-Cu超声键合的两种主要机制。本文旨在从原子角度为优化Cu-Cu固体键合的超声工艺提供实用参考。

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引用次数: 0

High-temperature wear behavior of precipitation-strengthened high-entropy alloy composite coatings developed by laser cladding technology 激光熔覆技术制备的析出强化高熵合金复合涂层的高温磨损性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-11 DOI: 10.1016/j.triboint.2025.111553

Lan Yuankuo , Guo Wenmin , Yu Songbai , Zheng Huanhuan , Zhang Yixu , Wang Xinfeng , Zhao Shan , Liu Guozheng , Zhang Jianfeng , Liu Bin

During the hole-forming process of seamless steel pipes, piercing plugs are prone to failure under extreme service conditions, including high stress, severe friction and wear, and high-temperature oxidation. In this study, Fe₁₈Co₂₄Cr₂₀Ni₂₃Mo₇Nb₃W₁Si₂C₂ spherical powder was fabricated via nitrogen gas atomization, and a coating was deposited on the H13 steel using laser cladding technology. The phase structure and microstructural thermal stability of the laser-cladded coating were systematically characterized, and the wear mechanisms of the coating at room temperature and elevated temperatures were thoroughly investigated. The results indicate that the laser-cladded coating exhibits a typical dendritic structure, primarily composed of a face-centered cubic (FCC) solid solution and a Laves phase. With an increase in annealing temperature, the content of the Laves phase increases slightly, leading to the formation of a continuous network skeleton within the coating. The wear rate of H13 steel increases significantly with rising test temperature, whereas the laser-cladded coating exhibits the opposite trend. At 800 °C, the volume wear rate of the coating is merely 0.23 times that of H13 steel, indicating outstanding high-temperature wear resistance. The wear mechanisms of the coating at room temperature and elevated temperatures include oxidation wear, abrasive wear, and adhesive wear. The dense oxide layer formed on the coating surface at high temperatures significantly reduces the friction coefficient and wear rate. The coating exhibits remarkable high-temperature wear resistance primarily attributable to its superior high-temperature strength and toughness, a dense oxide tribolayer, and a low friction coefficient.

在无缝钢管成孔过程中，穿孔塞在高应力、剧烈摩擦磨损、高温氧化等极端使用条件下容易失效。本研究采用氮气雾化法制备Fe18Co24Cr20Ni23Mo7Nb3W1Si2C2球形粉末，并采用激光熔覆技术在H13钢表面沉积涂层。系统表征了激光熔覆涂层的相结构和显微组织热稳定性，深入研究了激光熔覆涂层在室温和高温下的磨损机理。结果表明：激光熔覆层呈现出典型的枝晶结构，主要由面心立方固溶体和Laves相组成；随着退火温度的升高，Laves相的含量略有增加，导致涂层内部形成连续的网状骨架。随着试验温度的升高，H13钢的磨损率显著增加，而激光熔覆涂层的磨损率则相反。在800℃时，涂层的体积磨损率仅为H13钢的0.23倍，具有优异的高温耐磨性。涂层在室温和高温下的磨损机制包括氧化磨损、磨粒磨损和粘着磨损。高温下涂层表面形成致密的氧化层，显著降低摩擦系数和磨损率。该涂层具有优异的高温强度和韧性、致密的氧化摩擦层和低摩擦系数，具有显著的高温耐磨性。

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引用次数: 0

Monitoring and mapping of pitting in bearing steel contacts via vibration-based analysis 通过基于振动的分析监测和绘制轴承钢触点的点蚀

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2025-12-10 DOI: 10.1016/j.triboint.2025.111563

Zaihao Tian , Matthew Pugh , Terence Harvey , Jo Grundy , Robert Wood

This paper presents insights into the formation and progression of pitting in rolling-sliding contacts of bearing steels. Experiments were conducted using a TE74 twin-disc tribometer under lubricated conditions with two slide-to-roll ratios (SRR) of 10 % and 20 %. Macropits were generated under both conditions; however, at 10 % SRR, pitting was dominant, whereas at 20 % SRR, increased sliding promoted surface wear that suppressed pit initiation. Vibration signals were recorded and analysed to correlate with surface measurements. The results showed that pitting increased band power at characteristic pitting frequencies and reduced spectral entropy. Mapping vibration signals on a per-rotation basis enabled estimation of pit locations, showing good agreement with measured surface pits. This approach also allowed the detection of pit initiation at an earlier stage than frequency-domain features. These findings indicate that vibration-based monitoring can effectively capture pitting evolution and severity, providing a basis for quantitative feature extraction and automated detection methods.

本文介绍了轴承钢滚动滑动接触中点蚀的形成和发展。实验采用TE74双盘摩擦计，在润滑条件下进行，滑滚比分别为10 %和20 %。两种条件下均产生大坑；然而，当SRR为10 %时，点蚀起主导作用，而当SRR为20 %时，增加的滑动促进了表面磨损，抑制了坑的形成。振动信号被记录和分析，以与表面测量相关联。结果表明，点蚀提高了特征点蚀频率下的带功率，降低了谱熵。在每次旋转的基础上绘制振动信号，可以估计凹坑的位置，与测量的表面凹坑表现出良好的一致性。这种方法还允许在比频域特征更早的阶段检测坑的形成。这些结果表明，基于振动的监测可以有效地捕捉点蚀演变和严重程度，为定量特征提取和自动化检测方法提供基础。

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引用次数: 0