Tribology International最新文献_第2页

Polarity-dependent wear in electrified steel-steel contacts with polyalphaolefin and fatty acid/phosphate additives 含聚α -烯烃和脂肪酸/磷酸盐添加剂的电气化钢-钢接触的极性依赖磨损

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-10 DOI: 10.1016/j.triboint.2026.111825

Amel Krishnan , Pramoda K. Nayak , M. Kamaraj , Sundara Ramaprabhu

Lubricated contacts in electric vehicles (EVs) face unique challenges in the boundary lubrication regime due to stray currents in the powertrain, which accelerate wear and cause premature failure. Understanding how electric current influences the wear behaviour of base oils and additive formulations is therefore essential for developing reliable EV lubricants. Here, we systematically study the effect of DC current polarity on anodic and cathodic wear for steel/steel sliding contacts lubricated with non-polar polyalphaolefin (PAO) base oil, with and without additives containing long monofunctional alkyl chains (oleic acid and dioctyl phosphate), using a customized ball-on-disk tribometer. With PAO, wear was strongly polarity-dependent, with severe wear observed at the cathode sliding interface due to abrasion by oxide films formed preferentially at the anode sliding contact. Adding oleic acid reduced the total wear by 60.5–83.3 % through the formation of amorphous carbon films at the anode, which reduced the cathodic abrasion, though the polarity-dependent trend persisted. In contrast, dioctyl phosphate reversed this trend, with higher anode wear and cathode protection through a phosphate-based transfer film, reducing total wear by 35.8–60.9 % when compared to base oil. Despite the wear reductions by carboxyl and phosphate additive groups, the wear under electrified sliding remained higher than that under non-electrified sliding, highlighting the requirement for more advanced additive chemistries. This study elucidates the polarity-dependent wear behaviour under electrified boundary lubrication and supports the development of high-performance lubricant formulations based on fatty acid and alkyl phosphate additives for EV powertrain applications.

电动汽车的润滑触点在边界润滑方面面临着独特的挑战，因为动力系统中的杂散电流会加速磨损并导致过早失效。因此，了解电流如何影响基础油和添加剂配方的磨损行为对于开发可靠的电动汽车润滑油至关重要。在这里，我们系统地研究了直流电流极性对用非极性聚α -烯烃（PAO）基础油润滑的钢/钢滑动触点的阳极和阴极磨损的影响，并使用定制的球盘式摩擦计，研究了是否添加含有长单功能烷基链（油酸和磷酸二辛酯）的添加剂。对于PAO，磨损是强烈的极性依赖，在阴极滑动界面观察到严重的磨损，这是由于在阳极滑动接触处优先形成的氧化膜的磨损。通过在阳极处形成非晶碳膜，油酸的加入使总磨损降低了60.5 ~ 83.3 %，减少了阴极磨损，但极性依赖的趋势仍然存在。相比之下，磷酸二辛酯扭转了这一趋势，通过磷酸基转移膜具有更高的阳极磨损和阴极保护，与基础油相比，总磨损降低了35.8-60.9 %。尽管羧基和磷酸盐添加剂减少了磨损，但带电滑动时的磨损仍然高于非带电滑动时的磨损，这表明需要更先进的添加剂化学成分。该研究阐明了电气化边界润滑下的极性依赖磨损行为，并为基于脂肪酸和磷酸烷基添加剂的高性能电动汽车动力总成润滑油配方的开发提供了支持。

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引用次数: 0

A novel Cr-free alloy composite coating with superior tribocorrosion resistance 一种新型无铬合金复合涂层，具有优异的耐摩擦腐蚀性能

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-10 DOI: 10.1016/j.triboint.2026.111830

Yupeng Ji , Di Jiang , Dazhou Zhou , Xiaojie Song , Guosong Zhang , Qiang Song , Canming Wang , Xiaojuan Lian , Guijie Wang , Tao Suo , Yan Zhang , Hongzhi Cui

The synergistic damage caused by wear and corrosion presents a critical challenge that severely limits the service performance of key components in high-end equipment, creating an urgent need to develop new wear- and corrosion-resistant composite materials. In this study, a series of CoCrNi-based composite coatings with varying Cr contents were fabricated using laser cladding technology. The results indicate that although the Cr-free coating, which possesses the lowest hardness, demonstrates the poorest corrosion resistance in electrochemical tests, its wear volume under room-temperature dry sliding conditions is two orders of magnitude lower than that of the Cr-containing coatings. Furthermore, under tribocorrosion conditions, its damage volume is reduced by half. This superior performance is attributed to the ability of the Cr-free coating to form a dense tribolayer under both dry and lubricated sliding conditions, effectively isolating the substrate from the counterface. This study provides valuable insights for developing wear- and corrosion-resistant materials capable of in situ formation of protective tribofilms at room temperature.

磨损和腐蚀造成的协同破坏是一个严峻的挑战，严重限制了高端设备中关键部件的使用性能，因此迫切需要开发新的耐磨和耐腐蚀复合材料。本研究采用激光熔覆技术制备了一系列不同Cr含量的cocrni基复合涂层。结果表明，尽管硬度最低的无cr涂层在电化学测试中表现出最差的耐蚀性，但其在室温干滑动条件下的磨损量比含cr涂层小两个数量级。此外，在摩擦腐蚀条件下，其损伤体积减少了一半。这种优异的性能归功于无铬涂层在干燥和润滑滑动条件下形成致密摩擦层的能力，有效地将基材与接触面隔离。该研究为开发能够在室温下原位形成保护性摩擦膜的耐磨损和耐腐蚀材料提供了有价值的见解。

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引用次数: 0

Tribochemically driven construction of C/WO3 low-adhesion sliding interfaces in WC/a-C films WC/a-C薄膜中C/WO3低粘附滑动界面的摩擦化学驱动构建

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-10 DOI: 10.1016/j.triboint.2026.111821

Xiangxiang Pan , Dongqing He , Feng Mao , Lunlin Shang , Jun Cao

This study reveals the formation mechanism of the C/WO₃ low-adhesion sliding interface in WC/a-C films under low-humidity atmospheric conditions. Experiments show that sliding friction induces shear-stress-activated oxidation of WC nanoparticles, generating a WO₃ transfer film on the counterpart steel ball which chemically adheres via Fe-O-W bonds. This interfacial reconstruction establishes a stable C/WO₃ contact, achieving a low friction coefficient of 0.03. First-principles calculations confirm that the selective transfer originates from the strong chemisorption of WO₃ on Fe (-24.94 eV), far exceeding the van der Waals interaction at the C/Fe interface (-7.23 eV), thereby stabilizing the WO₃ layer on the steel counterpart. Charge density and Bader charge analyses reveal significant electron transfer, directly validating the Fe-O-W bonding mechanism for low friction.

本研究揭示了低湿大气条件下WC/a-C膜中C/WO3低粘附滑动界面的形成机理。实验表明，滑动摩擦引起WC纳米颗粒的剪切应力活化氧化，在对应的钢球上形成WO3转移膜，并通过Fe-O-W键化学粘附。这种界面重建建立了稳定的C/WO3接触，实现了0.03的低摩擦系数。第一原理计算证实，选择性转移源于WO3在Fe上的强化学吸附（-24.94 eV），远远超过C/Fe界面处的范德瓦尔斯相互作用（-7.23 eV），从而稳定了钢表面的WO3层。电荷密度和Bader电荷分析揭示了显著的电子转移，直接验证了Fe-O-W键合机制的低摩擦。

引用次数: 0

Research on the shape-dependence of nano-copper and the friction and lubrication mechanisms under the synergistic effect of multiple shapes 纳米铜的形状依赖性及多形状协同作用下的摩擦润滑机理研究

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-10 DOI: 10.1016/j.triboint.2026.111832

Jing Xu , Dongxiang Xu , Hao Lu , Junyan Yang , Wissal Mahfoudi , JiaDi Lian

Based on the molecular dynamics simulation method, a Couette flow boundary lubrication molecular dynamics model was established to investigate the shape-dependence of copper nanoparticles (CuNPs) and the influence of the synergistic effect of multiple shapes on the tribological properties, thus revealing the shape-dependence in single-shape lubrication systems and elucidating the synergistic lubrication mechanism of multi-shape CuNPs. The results showed that in single-shape lubrication systems, lamellar CuNPs exhibited optimal friction-reducing performance during the initial lubrication stage due to their ability to form a lubricating copper film. However, lamellar CuNPs tended to adhere to friction surface asperities in later stages, causing adhesive wear. Columnar CuNPs exacerbated wear depth due to stress concentration at their tips. Spherical CuNPs demonstrated the best overall lubrication and friction-reducing effects due their minimal contact area and resistance to adhesion and particle detachment. Polyhedron CuNPs, being morphologically unstable, gradually transformed into spherical CuNPs. In the multi-shape synergistic lubrication system, the combination of spherical-lamellar CuNPs exhibited the best synergistic lubrication performance, significantly reducing the average frictional force by 36.5 %, normal force by 49 %, and wear rate by 15.7 %. This performance is attributed to the lamellar CuNPs initially formed a stable lubricating film to bear the load, while the spherical CuNPs were subsequently extruded into a secondary dynamic film to fill gaps. Together, they achieved efficient friction reduction and wear resistance by isolating the friction surfaces, enabling atomic-level self-repair, and exhibiting a rolling bearing effect. The aforementioned research provided a theoretical foundation for predicting performance and developing water-based nanoscale lubrication systems.

基于分子动力学模拟方法，建立Couette流动边界润滑分子动力学模型，研究铜纳米颗粒的形状依赖性和多形状协同效应对摩擦学性能的影响，从而揭示单形状润滑系统的形状依赖性，阐明多形状铜纳米颗粒的协同润滑机理。结果表明，在单一形状的润滑系统中，由于层状铜纳米管能够形成润滑铜膜，在初始润滑阶段表现出最佳的减摩性能。然而，在后期阶段，片层状粘结剂倾向于粘附在摩擦表面的凹凸不平处，造成粘着磨损。由于其尖端的应力集中，柱状ccp加剧了磨损深度。球形CuNPs由于其最小的接触面积、抗粘附性和颗粒脱落性，表现出最佳的整体润滑和减少摩擦的效果。由于多面体孔蛋白在形态上不稳定，逐渐转变为球形孔蛋白。在多形状协同润滑系统中，球-片层组合的协同润滑效果最好，平均摩擦力显著降低36.5% %，法向力显著降低49% %，磨损率显著降低15.7% %。这一性能归因于层状CuNPs最初形成了稳定的润滑膜来承受载荷，而球形CuNPs随后被挤压成二次动态膜来填充间隙。通过隔离摩擦表面，实现原子级自我修复，并表现出滚动轴承效应，它们共同实现了有效的摩擦减少和耐磨性。上述研究为水基纳米润滑系统的性能预测和开发提供了理论基础。

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引用次数: 0

Experimental analysis of shim–tappet dynamics and friction modifier effects in engine valvetrain using an advanced measurement technique 用先进的测量技术试验分析了发动机气门机构中垫片-挺杆动力学和摩擦调节剂效应

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-08 DOI: 10.1016/j.triboint.2026.111799

Sehrish Shahnawaz , Riaz Ahmad Mufti , Muhammad Talha Manzoor , Waleed Al-Sallami , Mian Ashfaq Ali , Rehan Zahid , Jawad Aslam , Muhammad Khurram

The pursuit for fuel-efficient and durable engines has intensified the need to understand frictional losses in valvetrain systems operating mainly under boundary and mixed lubrication. This study introduces an advanced in-situ technique based on giant magneto-resistive (GMR) chip to directly measure independent tappet and shim rotation linked with friction measurement in a production engine head without altering its geometry. Complementary experiments were conducted on a reciprocating rig using real engine components to validate the findings. Tests with SAE 30 base oil and four friction modifiers namely MoDTC, Molyvan, Polymeric, and an Organic friction modifier (OFM) showed that MoDTC consistently delivered the lowest frictional torque but also suppressed tappet rotation, while the polymeric friction modifier yielded the highest tappet rotation with relatively modest friction reduction across all camshaft speeds and lubricant temperatures. The base oil produced the highest friction torque overall but minimal rotation, demonstrating the strong influence of tappet–bore resistance. Shim rotation was generally low but became significant at low camshaft speed and high lubricant temperature. The analysis revealed that nearly 10 % of cam–tappet friction contributes to tappet rotation, demonstrating that the equilibrium between cam–tappet and tappet–bore friction governs rotational dynamics. Reciprocating tribometer tests verified the friction reducing performance of MoDTC but showed a different ranking for the other modifiers due to the absence of rotational motion. This suggests that reciprocating sliding tribometers may not fully replicate real engine conditions. The results reveal that friction modifiers influence both tribological losses and the coupled rotational dynamics within the valvetrain.

为了追求更省油、更耐用的发动机，人们更需要了解主要在边界润滑和混合润滑下运行的气门机构系统的摩擦损失。本研究介绍了一种基于巨磁阻（GMR）芯片的先进原位技术，在不改变生产发动机机头几何形状的情况下，直接测量与摩擦测量相关的独立挺杆和垫片旋转。在往复式钻机上使用真实发动机部件进行了补充实验以验证研究结果。使用SAE 30基础油和四种摩擦改进剂（MoDTC、Molyvan、Polymeric和有机摩擦改进剂（OFM））进行的测试表明，在所有凸轮轴转速和润滑剂温度下，MoDTC始终提供最低的摩擦扭矩，但也抑制了挺杆旋转，而聚合物摩擦改进剂产生了最高的挺杆旋转，相对适度地减少了摩擦。基础油产生了最大的摩擦扭矩，但旋转最小，表明挺杆-孔阻力的影响很大。垫片旋转通常较低，但在低凸轮轴转速和高润滑剂温度下变得明显。分析表明，近10% %的凸轮-挺杆摩擦有助于挺杆旋转，这表明凸轮-挺杆和挺杆孔之间的摩擦平衡决定了旋转动力学。往复式摩擦计测试证实了MoDTC的减摩性能，但由于没有旋转运动，其他改进剂的排名不同。这表明往复滑动摩擦计可能不能完全复制真实的发动机条件。结果表明，摩擦调节剂既影响摩擦损耗，也影响配气机构内的耦合旋转动力学。

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引用次数: 0

Multi-scale analysis and modeling of material removal process for ultrasonic vibration-assisted polishing 超声振动辅助抛光材料去除过程的多尺度分析与建模

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-07 DOI: 10.1016/j.triboint.2026.111812

Tianqi Zhang , Tian Shi , Weifeng Yao , Lihui Zhang , Jinzhong Wu , Jianming Zheng , Erlin Zhang , Tianbiao Yu

This study develops a multi‑scale material removal model for ultrasonic vibration‑assisted polishing (UVAP) to bridge macroscopic process parameters with microscopic abrasive cutting behavior through a mesoscopic perspective. By integrating ultrasonic vibration principles and contact mechanics, a macroscopic contact model between polishing pad and workpiece surface is first established. From a meso-scale viewpoint, abrasive particles within contact area are categorized as embedded and free types. Corresponding microscopic material removal models are then formulated based on indentation hardness theory, Hertzian contact theory, the law of energy conservation, and other relevant principles. Building on the mesoscopic analysis, a material removal rate (MRR) model for contact area is constructed, incorporating a radial scraping cutting frequency function for embedded abrasive particles and an impact count function for free abrasive particles in a single ultrasonic vibration period. The predicted results from the model deviate from experimental data by no more than 6 %. Based on the established model, further simulation studies under varying polishing parameters reveal the effect characteristics of ultrasonic vibration on intermediate variables during material removal process in UVAP, elucidate the scientific essence of why ultrasonic vibration enhances polishing performance, and provide a reliable theoretical basis for understanding and optimizing the UVAP process.

本研究开发了超声振动辅助抛光（UVAP）的多尺度材料去除模型，通过介观视角将宏观工艺参数与微观磨料切削行为联系起来。结合超声振动原理和接触力学，首先建立了抛光垫与工件表面的宏观接触模型。从中观角度看，接触区域内的磨粒可分为嵌入型和自由型。然后根据压痕硬度理论、赫兹接触理论、能量守恒定律等相关原理，建立相应的微观材料去除模型。在细观分析的基础上，建立了接触面积的材料去除率（MRR）模型，该模型结合了单个超声振动周期内嵌入磨粒的径向刮切频率函数和自由磨粒的冲击计数函数。模型预测结果与实验数据的偏差不超过6% %。在建立的模型基础上，进一步进行了不同抛光参数下的仿真研究，揭示了超声振动对UVAP材料去除过程中中间变量的影响特征，阐明了超声振动提高抛光性能的科学本质，为理解和优化UVAP工艺提供了可靠的理论依据。

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引用次数: 0

Influence of annealing and tempering on the wear and corrosion behavior of WC/W2C reinforced composites fabricated by laser powder bed fusion 退火和回火对激光粉末床熔合制备WC/W2C增强复合材料磨损和腐蚀行为的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-07 DOI: 10.1016/j.triboint.2026.111811

Yiqi Zhou , Ke Sang , Wenqian Wang , Guofeng Zhang , Decheng Kong , Yu Yan , Xiaogang Li , Xuanhui Qu , Chaofang Dong , Zhigang Yang , Hao Chen , Chi Zhang

WC/W₂C particle reinforced stainless steel composites were fabricated via laser powder bed fusion (LPBF) and subsequently heat‑treated under two schemes: direct tempering (200–600 °C) and solution annealing at 1050 °C followed by tempering. The effects of these heat treatments on the microstructure, wear performance, corrosion behaviour, and mechanical properties were systematically investigated. While low‑temperature tempering (≤ 400 °C) promoted carbon redistribution and increased retained austenite from 17.6 % to 61.7 %, tempering at 600 °C—as well as the solution‑annealed and tempered condition—suppressed austenite (≈ 0 %) and triggered extensive precipitation of Cr‑rich carbides. Solution annealing homogenized the matrix, eliminated austenite, and thickened the in-situ reaction layers to ∼5 μm. Intergranular corrosion susceptibility correlated directly with carbide‑induced Cr‑depleted zones, with the highest degree of sensitization (DOS > 220) occurring after the 600 °C and 1050 °C + 600 °C treatments, significantly exceeding that of other conditions (DOS < 150). Wear resistance was governed primarily by matrix hardness; wear volume loss increased markedly from 2 × 10⁴ μm³ to 5 × 10⁵ μm³, attributed to abrasive carbide debris and thermal softening. Compression tests demonstrated high deformability (> 60 %) after heat treatment; however, the as‑built composite exhibited the highest compressive strength (∼4500 MPa) but underwent premature failure, owing to residual stress.

采用激光粉末床熔合（LPBF）法制备WC/W2C颗粒增强不锈钢复合材料，并对其进行直接回火（200-600℃）和1050℃固溶退火后回火处理。系统地研究了这些热处理对微观组织、磨损性能、腐蚀行为和力学性能的影响。低温回火（≤400℃）促进了碳的再分配，使残余奥氏体从17.6 %增加到61.7 %，而600℃回火以及固溶退火和回火条件抑制了奥氏体（≈0 %），并引发了富Cr碳化物的广泛析出。溶液退火使基体均匀化，消除了奥氏体，并将原位反应层加厚至~ 5 μm。晶间腐蚀敏感性与碳化物诱导的贫铬区直接相关，在600°C和1050°C + 600°C处理后，敏化程度最高（DOS > 220），显著超过其他条件（DOS < 150）。耐磨性主要由基体硬度决定；磨损体积损失由2 × 104 μm3显著增加到5 × 105 μm3，主要原因是磨料碳化物碎片和热软化。压缩试验表明，热处理后的变形能力高（> 60 %）；然而，构建的复合材料表现出最高的抗压强度（~ 4500 MPa），但由于残余应力而过早失效。

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引用次数: 0

A numerical solver framework for capturing the dynamic behaviour of oil ring lubricators 捕获油环润滑器动态行为的数值求解框架

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-07 DOI: 10.1016/j.triboint.2026.111809

Alistair McLane, Liuquan Yang, Mark C.T. Wilson

Loose-ring oil lift is a passive lubrication method widely used in self-contained bearing systems, but its application to heavy-duty pumps is limited by dynamic instabilities that compromise reliability. This study introduces a time-dependent numerical framework that, for the first time, captures the in-plane dynamic behaviour of oil rings. The governing equations of motion are newly derived from Lagrangian mechanics and solved using a fourth-order Runge–Kutta scheme. Forces acting on the ring are dynamically evaluated and coupled to ring motion, enabling accurate simulation of transient phenomena such as start-up and shut-down responses, perturbations, runout, and hysteresis effects. The solver is verified and validated against published computational and experimental data. Results reveal mechanisms underlying ring speed, lubricant transport, and attitude variations, providing a predictive tool for assessing stability and supporting the design of more reliable, cost-effective lubrication systems.

松环举升油是一种广泛应用于独立轴承系统的被动润滑方法，但其在重型泵中的应用受到动态不稳定性的限制，影响了泵的可靠性。本研究引入了一个时间相关的数值框架，首次捕捉了油环的平面内动态行为。运动控制方程是从拉格朗日力学中导出的，用四阶龙格-库塔格式求解。作用在环上的力被动态评估，并与环运动耦合，从而能够精确模拟瞬态现象，如启动和关闭响应、扰动、跳动和滞后效应。根据已发表的计算和实验数据对求解器进行了验证和验证。结果揭示了环速、润滑油输送和姿态变化的机制，为评估稳定性提供了预测工具，并支持设计更可靠、更经济的润滑系统。

引用次数: 0

Effect of brake pad compositional ratios on friction and stick–slip vibration at the train braking interface 刹车片成分比对列车制动界面摩擦和粘滑振动的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-06 DOI: 10.1016/j.triboint.2026.111810

Manqiang Liu , Zhiwei Wang , Jiliang Mo , Jinjie Hu , Peng Xu , Wangyi Shen , Kaiyun Wang

Lightweight brake friction pairs in urban trains tend to exhibit stick–slip vibrations during braking, yet the influence mechanism of pad formulations on this behavior remains unclear. This study conducted tribological tests on brake pads with three binder ratios and steel fibers contents to reproduce and analyze stick–slip phenomena, and to characterize surface roughness, wear angle, and contact plateaus. Finite element modeling was used to reveal interfacial contact area and stress distribution, while a theoretical model was employed to analyze the impact of surface roughness on stick–slip response. Based on these methods, a “composition–interface state–vibration” correlation framework was established, clarifying the effects of binder and steel fibers on stick–slip vibrations. The results indicate that brake pads with high binder content promote the formation of continuous and stable tribofilms. These tribofilms markedly reduce surface roughness, wear angle, and the heterogeneity of contact plateaus, increase the real contact area, homogenize stress distribution, and lower both interfacial stiffness and the static–dynamic friction coefficient difference (Δµ), thereby suppressing stick–slip vibrations. In contrast, brake pads with high steel fibers content tend to accumulate debris and fracture the tribofilms, resulting in rough surfaces and pronounced heterogeneity of contact plateaus, which increases interfacial stiffness and Δµ, thereby amplifying stick–slip amplitudes. This work provides theoretical insights and engineering guidance for optimizing brake-pad formulations and designing long-service-life brake systems.

城市列车的轻质制动摩擦副在制动过程中往往表现出粘滑振动，但衬垫配方对这种行为的影响机制尚不清楚。本研究对具有三种粘结剂比和钢纤维含量的刹车片进行了摩擦学试验，以再现和分析粘滑现象，并表征表面粗糙度、磨损角和接触高原。采用有限元模型揭示接触面接触面积和应力分布，采用理论模型分析表面粗糙度对粘滑响应的影响。在此基础上，建立了“成分-界面状态-振动”关联框架，阐明了粘结剂和钢纤维对粘滑振动的影响。结果表明，粘结剂含量高的刹车片有利于摩擦膜的连续稳定形成。这些摩擦膜显著降低了表面粗糙度、磨损角和接触平台的非均匀性，增加了实际接触面积，均匀化了应力分布，降低了界面刚度和动静摩擦系数差（Δµ），从而抑制了粘滑振动。相反，钢纤维含量高的刹车片容易积聚碎屑，破坏摩擦膜，导致表面粗糙，接触平台不均匀性明显，增加了界面刚度和Δµ，从而放大了粘滑振幅。这项工作为优化刹车片配方和设计长寿命制动系统提供了理论见解和工程指导。

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引用次数: 0

Influence of temperature and crossing angle on the tribo-corrosion-fatigue behaviors of steel wire ropes of winch drum in offshore drilling rig 温度和交叉角对海洋钻井绞车卷筒钢丝绳摩擦腐蚀疲劳性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-02-06 DOI: 10.1016/j.triboint.2026.111750

Bo Wang , Dagang Wang , Shirong Ge , Hailang Chong , Weiguang Chen , Dekun Zhang

Steel wire ropes used on winch drums of offshore drilling platforms suffer from the combined effects of friction, corrosion, and fatigue, leading to wear, corrosion, and wire breaks that compromise their load-bearing capacity and operational safety. A self-made test rig was employed to investigate the tribo-corrosion-fatigue degradation behaviors of steel wire ropes under different temperatures and crossing angles. Damage profiles were analyzed using a 3D profilometer, and surface morphology of worn/fractured sections was examined via scanning electron microscopy. Quantitative assessments included volume loss, volume loss rate, and number of broken wires, while corrosion resistance and residual load-bearing strength were evaluated through electrochemical analysis and breaking tensile tests, respectively. The results show that temperature exerts a more pronounced influence on the friction coefficient of steel wire ropes than the crossing angle. The predominant fracture mechanism is identified as corrosion-fatigue fracture. At large crossing angles (≥10°), secondary fractures develop in the surface wires, leading to the loss of fractured wires. Furthermore, an increase in temperature aggravates tribo-corrosion-fatigue damage, with the total damage peaking at a crossing angle of 10°. Notably, the local stress concentration induced by large crossing angles has a substantially greater impact on the residual load-bearing capacity of steel wire ropes than temperature. These findings highlight the critical influence of temperature and crossing angle on the service performance and failure behavior of steel wire ropes in the hoisting system of offshore drilling rig, providing important theoretical guidance for optimizing their design and maintenance under complex working conditions.

海上钻井平台绞车卷筒上使用的钢丝绳受到摩擦、腐蚀和疲劳的综合影响，导致磨损、腐蚀和断丝，从而影响其承载能力和操作安全性。采用自制的试验装置，对钢丝绳在不同温度、不同交叉角下的摩擦腐蚀疲劳退化行为进行了研究。使用3D轮廓仪分析损伤轮廓，并通过扫描电子显微镜检查磨损/断裂部分的表面形貌。定量评估包括体积损失率、体积损失率和断线数量，同时通过电化学分析和断裂拉伸测试分别评估耐腐蚀性和剩余承载强度。结果表明，温度对钢丝绳摩擦系数的影响比交叉角的影响更为显著。主要断裂机制为腐蚀-疲劳断裂。当交叉角较大（≥10°）时，表面钢丝发生二次断裂，导致断裂钢丝丢失。此外，温度升高加剧了摩擦腐蚀疲劳损伤，总损伤在交叉角为10°时达到峰值。值得注意的是，大交叉角引起的局部应力集中对钢丝绳残余承载能力的影响要比温度大得多。这些研究结果凸显了温度和交叉角对海洋钻井平台提升系统钢丝绳的使用性能和失效行为的重要影响，为复杂工况下钢丝绳的优化设计和维护提供了重要的理论指导。

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引用次数: 0