Tribology International最新文献_第9页

Study on ‘environment-velocity coupling effect’ on the tribological performances of amorphous carbon films under O2 environment O2环境下非晶碳膜摩擦学性能的“环境-速度耦合效应”研究

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-16 DOI: 10.1016/j.triboint.2026.111714

Lin Chen , Yuan Niu , Xia Li , Guangan Zhang , Dongshan Li , Zhengtian Xu , Weimin Liu

Amorphous carbon, as an excellent solid lubricant film, is employed to protect moving mechanical components in manufacturing industry, but its excellent lubricity is often lost due to ‘environmental effect’ phenomenon. Understanding the molecular gas species states across sliding interface is a foundation to bring anti-environmental sensitivity into amorphous carbon for excellent lubricity in gas environment. Nevertheless, interfacial molecular gas species state understanding is impeded by the irreproducibility of sliding interface in post-testing analyses and theoretical simulation. An effective approach, a fractional coverage model combined with Eyring model was proposed in this study to understand ‘environmental effect’ related to sliding speed on the frictional behaviors of hydrogenated amorphous carbon (a-C:H) film. The model unveiled ‘environment-velocity coupling effect’ on frictional performances of a-C:H film under O₂ environment. CO-terminated interfaces exhibited higher electrostatic repulsion than O-CO-terminated interfaces. Based on the above-mentioned electrostatic repulsion characteristics, the oxygen adsorption led to the formation of CO bonds and reduced interfacial friction, but further oxygen adsorption resulted in the formation of O-CO bonds and increased interfacial friction. Sliding speed affected potential barriers from motional oxygen molecules on the sliding interface, and this performance was somewhat like the characteristics of the Eyring reaction kinetics detailing shear force as a function of sliding velocity. Friction coefficient of full-covered hydrogenated film was linear in the natural logarithm value of sliding speed.

非晶碳作为一种优良的固体润滑膜，在制造业中被用来保护运动的机械部件，但由于“环境效应”的现象，其优良的润滑性往往会丧失。了解滑动界面上的气体分子形态是将非晶态碳引入抗环境敏感性的基础，从而获得优异的气体环境润滑性能。然而，在测试后分析和理论模拟中，滑动界面的不可再现性阻碍了对界面气体分子态的理解。本文提出了一种有效的方法，即结合Eyring模型的分数覆盖模型来理解滑动速度对氢化非晶碳（a- c:H）薄膜摩擦行为的“环境效应”。该模型揭示了O2环境下a-C:H膜摩擦性能的“环境-速度耦合效应”。共端界面的静电斥力高于o端界面。基于上述静电斥力特性，氧吸附导致CO键形成，界面摩擦减小，但进一步的氧吸附导致O-CO键形成，界面摩擦增大。滑动速度影响滑动界面上运动氧分子的势垒，这种表现有点像Eyring反应动力学的特征，详细描述了剪切力作为滑动速度的函数。全覆盖氢化膜的摩擦系数与滑动速度的自然对数成线性关系。

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引用次数: 0

Corrigendum to “Effect of ultrasonic needle peening on tribological characteristics of GH4169 alloy at elevated temperature” [Tribol Int 210 (2025) 110763] “高温下超声波针刺对GH4169合金摩擦学特性的影响”的勘误[Tribol Int 210 (2025) 110763]

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-15 DOI: 10.1016/j.triboint.2026.111687

Bassiouny Saleh , Adnan Saifan , Lu Zhang , Liguo Zhao

引用次数: 0

Analysis of selected aspects of improving the durability of ceramic roof tile forming tools with consideration of numerical modeling 结合数值模拟分析了提高陶瓷屋面瓦成型工具耐久性的选择方法

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-15 DOI: 10.1016/j.triboint.2026.111700

Marek Hawryluk , Jan Marzec , Łukasz Madej , Konrad Perzyński

The study presents the results of research involving a comprehensive analysis of the wear of forming tools used for shaping clay strands intended for ceramic roof tiles during the extrusion process. The investigations initially focused on the analysis of key parameters recorded during industrial operation, namely extrusion pressure and the velocity of the extruded strand. Under operational conditions, previously untested material variants were evaluated, including C45 steel with a hardfacing layer and hot-work tool steel Orvar 2 M. The measurement results were compared with the standard tool material commonly used in this application, namely the cold-work tool steel NC11LV. The use of hardfacing in this industrial application proved to be a valuable alternative, enabling the regeneration of worn tools. In contrast, the hot-work tool steel (Orvar 2 M) demonstrated inferior performance under the analyzed industrial conditions, exhibiting the most intensive wear. The research was complemented by the development of a numerical simulation model of the process, which was essential for a comprehensive analysis and for understanding the causes of the observed tribological wear. Based on the modeling results, die design modifications were formulated to minimise the dead-zone effect and reduce the stresses acting on the forming tools. The final stage of the presented research involved identifying directions for future studies.

该研究展示了一项研究的结果，该研究涉及在挤压过程中用于成型陶瓷屋顶瓦片粘土链的成形工具的磨损的综合分析。调查最初集中在分析工业运行中记录的关键参数，即挤压压力和挤压链的速度。在操作条件下，评估了以前未测试过的材料变体，包括带堆焊层的C45钢和热加工工具钢Orvar 2 M。测量结果与该应用中常用的标准刀具材料，即冷加工工具钢NC11LV进行了比较。在这种工业应用中，堆焊被证明是一种有价值的替代方法，可以使磨损的工具再生。相比之下，热加工工具钢（Orvar 2 M）在分析的工业条件下表现出较差的性能，表现出最强烈的磨损。该研究得到了该过程的数值模拟模型的发展的补充，这对于全面分析和理解观察到的摩擦学磨损的原因至关重要。根据建模结果，制定了模具设计修改，以尽量减少死区效应，减少作用在成形工具上的应力。本研究的最后阶段涉及确定未来研究的方向。

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引用次数: 0

Surface energy analysis of sustainable sesame oil-MoS₂ nanolubricants and its effectiveness on machining Al-TiC in-situ metal matrix composites 可持续芝麻油- mos 2纳米润滑剂的表面能分析及其加工Al-TiC原位金属基复合材料的效果

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-15 DOI: 10.1016/j.triboint.2026.111701

S.V. Sujith , Anand Kumar Solanki , Mahesh Kumar Tiwari , Rahul S. Mulik

Present industrial practices are essential to be directed towards sustainable manufacturing in order to minimize carbon emissions with improved energy efficiency. One promising approach towards machining sector could be attained by engineering ecofriendly lubricants by incorporating nanoparticles to reduce friction and thermal induced energy losses. In this study, sesameoil MoS₂ based nano lubricants were developed to improve the machinability of Al-TiC in-situ metal matrix composites (MMC). These MMCs are typically difficult to machine due to the presence of hard reinforcing phases. The effect of nanoparticle solid volume fraction on surface energy interactions was investigated experimentally by measuring the contact angle of the nanolubricants using the sessile drop method. Surface thermodynamic analysis was then applied to estimate the surface energy components of the nanolubricants at different volume fractions. To account for the influence of surface roughness on wettability, Wenzel’s relation was used to determine the intrinsic contact angle. Additionally, for different solid volume fraction of nano lubricants, the machining tests were performed on Al-TiC MMC to analyze the impact of surface energy on a set of machining parameters. The tests were conducted under the conditions: dry machining, pure sesame oil, and different concentration of nano lubricants based on minimum quantity lubrication (MQL). The results showed that sesame oil containing 0.4 vol% MoS₂ nanoparticles produced the most promising performance based on surface roughness, cutting temperature, and tool life.

为了在提高能源效率的同时最大限度地减少碳排放，目前的工业实践必须朝着可持续制造的方向发展。在机械加工领域，一种很有前途的方法是通过加入纳米颗粒来减少摩擦和热致能量损失的工程环保型润滑剂。为了提高原位金属基复合材料（MMC）的可切削性，本研究开发了基于芝麻油MoS2的纳米润滑剂。由于存在硬增强相，这些mmc通常难以加工。通过固滴法测量纳米润滑剂的接触角，研究了纳米颗粒固体体积分数对表面能相互作用的影响。然后应用表面热力学分析方法估算了不同体积分数下纳米润滑剂的表面能组分。为了考虑表面粗糙度对润湿性的影响，使用Wenzel关系来确定固有接触角。此外，针对不同固体体积分数的纳米润滑剂，对Al-TiC MMC进行了加工试验，分析了表面能对一组加工参数的影响。试验在干式加工、纯芝麻油和基于最小润滑量（MQL）的不同浓度纳米润滑剂的条件下进行。结果表明，从表面粗糙度、切削温度和刀具寿命来看，含有0.4 vol% mo₂纳米颗粒的芝麻油具有最理想的切削性能。

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引用次数: 0

Gradient microstructure and tribological property evolution in Ti-5Al-5Mo-5V-1Fe-1Cr alloy via waterjet-guided laser and abrasive waterjet machining 水射流激光和磨料水射流加工Ti-5Al-5Mo-5V-1Fe-1Cr合金的梯度组织和摩擦学性能演变

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-14 DOI: 10.1016/j.triboint.2026.111697

Shuaikang Chang , Wenchuan Liu , Jiren Tang , Mengyan Fan

The Ti-5Al-5Mo-5V-1Fe-1Cr (TC18) alloy faces significant machining challenges due to its poor thermal conductivity and high chemical reactivity, which subsequently influence its tribological performance in aerospace components. This study investigates the gradient microstructure evolution and resultant surface integrity in TC18 alloy induced by two advanced cold machining techniques—abrasive waterjet machining (AWJM) and waterjet-guided laser (WJGL) machining. AWJM produces a deformation-dominated structure, reducing the α-Ti and β-Ti grain sizes by 71 % and 85 %, respectively, and increasing the fraction of low-angle grain boundaries (LAGBs) to 48.6 %. This enhancement increases surface hardness by 12 % through grain refinement. In contrast, WJGL machining generates a thermally-driven gradient, retaining 37.73 % metastable β-Ti phase at the surface and dominated by high-angle grain boundaries (HAGBs, 91.3 %), which improves hardness by 7 % through rapid cooling. Oxidation analysis reveals that AWJM promotes the formation of high-valent TiO₂ (66.67 %), associated with compressive residual stresses that are beneficial for fatigue and wear resistance. In contrast, WJGL machining favours the formation of lower-valent Ti₂O₃ (56.31 %), which influences surface reactivity and lubricant retention. The study establishes that AWJM is suitable for applications requiring deep gradient reinforcement and superior wear resistance, while WJGL machining is ideal for precision components that demand an excellent surface finish and controlled friction under light loading. These findings provide a foundational guideline for selecting machining processes to tailor surface integrity and tribological performance in high-performance titanium alloys.

Ti-5Al-5Mo-5V-1Fe-1Cr （TC18）合金由于其导热性差和化学反应性高，从而影响其在航空航天部件中的摩擦学性能，因此面临着巨大的加工挑战。研究了磨料水射流加工（AWJM）和水射流制导激光加工（WJGL）两种先进的冷加工技术对TC18合金梯度组织演变和表面完整性的影响。AWJM使α-Ti和β-Ti晶粒尺寸分别减小了71 %和85 %，使低角度晶界（lagb）的比例增加到48.6 %。这种强化通过晶粒细化使表面硬度提高了12% %。相比之下，WJGL加工产生了热驱动梯度，在表面保留了37.73 %的亚稳β-Ti相，并以高角度晶界（HAGBs, 91.3 %）为主，通过快速冷却使硬度提高了7 %。氧化分析表明，AWJM促进了高价TiO 2的形成（66.67 %），与压缩残余应力相关，有利于疲劳和耐磨性。相比之下，WJGL加工有利于形成低价Ti₂O₃（56.31 %），这影响了表面反应性和润滑剂保留率。研究表明，AWJM适用于需要深度梯度增强和卓越耐磨性的应用，而WJGL加工则适用于需要良好表面光洁度和轻载荷下可控摩擦的精密部件。这些发现为选择加工工艺以定制高性能钛合金的表面完整性和摩擦学性能提供了基础指导。

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引用次数: 0

The influence of WS2-filled micro-textures on the tribological properties of CuNiAl alloy under dry and oil-lubricated conditions 在干润滑和油润滑条件下，填充ws2微织构对CuNiAl合金摩擦学性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-14 DOI: 10.1016/j.triboint.2026.111705

Pan Li , Po Zhang , Zirui Cao , Qiang Wang , Ting Fu , Xianjuan Pang , Lihua Fu , Zhaobing Cai , Le Gu

To enhance the tribological properties of CuNiAl, a textured composite surface was fabricated by filling WS₂ solid lubricant (silane coupling method) into micro-dimples with varying area densities (40 %, 45 %, and 50 %). The tribological behaviors of original (No MT), microtextured (MT), and WS₂-filled microtextured (MT-WS₂)—were evaluated under dry and oil-lubricated conditions. With a density of 45 %, the MT-WS₂ sample demonstrated the best tribological performance. Under dry conditions, its average friction coefficient (AFC) and wear rate (WR) decreased by 27.87 % and 76.9 %, respectively, compared to the No MT sample, and by 49.16 % and 87.1 %, respectively, compared to the MT sample. Under oil lubrication, the reductions in AFC and WR were 2.96 % and 64.8 % relative to the No MT sample, and 2.81 % and 61.33 % relative to the MT sample. The improvement mechanism involves WS₂ forming a solid lubricating film during dry friction, while in oil, it synergizes with lubricant to create a composite film that significantly enhances wear resistance.

为了提高CuNiAl的摩擦学性能，将WS2固体润滑剂（硅烷偶联法）填充到不同面积密度（40 %、45 %和50 %）的微凹窝中制备了织构复合材料表面。在干燥和油润滑条件下，对原始（No MT）、微织构（MT）和填充ws2的微织构（MT- ws2）的摩擦学行为进行了评估。MT-WS2样品的摩擦学性能最好，密度为45 %。在干燥条件下，其平均摩擦系数（AFC）和磨损率（WR）分别比No MT样品降低了27.87 %和76.9 %，比MT样品分别降低了49.16 %和87.1 %。在油润滑条件下，AFC和WR相对于No MT样品分别降低了2.96 %和64.8 %，相对于MT样品分别降低了2.81 %和61.33 %。其改善机理是：WS2在干摩擦时形成固体润滑膜，在油中与润滑油协同形成复合膜，显著提高耐磨性。

{"title":"The influence of WS2-filled micro-textures on the tribological properties of CuNiAl alloy under dry and oil-lubricated conditions","authors":"Pan Li , Po Zhang , Zirui Cao , Qiang Wang , Ting Fu , Xianjuan Pang , Lihua Fu , Zhaobing Cai , Le Gu","doi":"10.1016/j.triboint.2026.111705","DOIUrl":"10.1016/j.triboint.2026.111705","url":null,"abstract":"<div><div>To enhance the tribological properties of CuNiAl, a textured composite surface was fabricated by filling WS<sub>2</sub> solid lubricant (silane coupling method) into micro-dimples with varying area densities (40 %, 45 %, and 50 %). The tribological behaviors of original (No MT), microtextured (MT), and WS<sub>2</sub>-filled microtextured (MT-WS<sub>2</sub>)—were evaluated under dry and oil-lubricated conditions. With a density of 45 %, the MT-WS<sub>2</sub> sample demonstrated the best tribological performance. Under dry conditions, its average friction coefficient (AFC) and wear rate (W<em>R</em>) decreased by 27.87 % and 76.9 %, respectively, compared to the No MT sample, and by 49.16 % and 87.1 %, respectively, compared to the MT sample. Under oil lubrication, the reductions in AFC and W<em>R</em> were 2.96 % and 64.8 % relative to the No MT sample, and 2.81 % and 61.33 % relative to the MT sample. The improvement mechanism involves WS<sub>2</sub> forming a solid lubricating film during dry friction, while in oil, it synergizes with lubricant to create a composite film that significantly enhances wear resistance.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"218 ","pages":"Article 111705"},"PeriodicalIF":6.1,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145981887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ synthesized TiCp reinforced titanium matrix composites using vortex flow-based friction stir processing 涡流搅拌摩擦法原位合成TiCp增强钛基复合材料

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-14 DOI: 10.1016/j.triboint.2026.111706

Qiyong Wang , Xiaochao Liu , Xincheng Wang , Tairui Zhang , Biao Chen , Xiaopei Wang , Wenqin Wang , Zhonghua Ni

TC4 titanium alloy has extremely high reactivity with oxygen and hydrogen, can easily lead to alloy embrittlement, decrease in microhardness and wear resistance. Regarding this issue, TiCp reinforced titanium matrix composites layer (TMCs-L) were synthesized in-situ on the TC4 matrix surface by a novel technique named vortex flow-based friction stir processing (VFSP), and the effect of tool rotation speed on the microstructure, microhardness, and wear resistance of the TMCs-L were investigated in detail. The results indicate that the unique thermo-mechanical conditions between a tungsten carbide (WC) holder and TC4 titanium alloy generated during VFSP facilitate the formation of WC particles. Subsequently, carbon atoms in situ react with the titanium alloy to form TiC particles, while W atoms dissolve into the titanium matrix. With an increase in tool rotation speed, the distribution width and thickness of the TMCs-L increase accordingly, and the morphology of TiC particles transforms from short rod-like shapes or spherical to needle-like or polygonal forms. Moreover, at higher tool rotation speeds, the proportion of β-Ti phase significantly increases, accompanied by a more pronounced grain refinement effect. In comparison with the matrix material, the microhardness of the TMCs-L under 500 r/min increased by 29.71 %, and the average coefficient of friction (COF) value decreased by 10.29 %. Solid solution strengthening and Hall-Petch effect are the main reasons for the enhancement of mechanical properties. This study demonstrates that the in-situ preparation of TiCp reinforced TMCs by the VFSP process is an effective method to improve the surface properties of TC4 titanium alloy.

TC4钛合金与氧和氢具有极高的反应活性，易导致合金脆化，显微硬度和耐磨性下降。针对这一问题，采用基于涡流搅拌摩擦加工（VFSP）的新技术在TC4基体表面原位合成了TiCp增强钛基复合材料层（TMCs-L），并详细研究了刀具转速对TMCs-L的显微组织、显微硬度和耐磨性的影响。研究结果表明：在VFSP过程中碳化钨（WC）支架与TC4钛合金之间独特的热力学条件有利于WC颗粒的形成；随后，原位碳原子与钛合金反应生成TiC颗粒，W原子溶入钛基体。随着刀具转速的增加，TMCs-L的分布宽度和厚度相应增大，TiC颗粒的形貌由短棒状或球形转变为针状或多边形。在较高的刀具转速下，β-Ti相的比例显著增加，晶粒细化效果更加明显。与基体材料相比，在500 r/min下，TMCs-L的显微硬度提高了29.71 %，平均摩擦系数（COF）值降低了10.29 %。固溶强化和霍尔-佩奇效应是提高材料力学性能的主要原因。研究表明，原位制备TiCp增强tmc是一种改善TC4钛合金表面性能的有效方法。

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引用次数: 0

Surface waviness effect on machining and wear on engine components 表面波纹对发动机零件加工和磨损的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-13 DOI: 10.1016/j.triboint.2026.111703

Eduardo Tomanik , Javier Blanco-Rodríguez , Roberto Martins Souza

This work investigates how actual surface waviness affects contact between tribological pairs. Samples of different engine cylinders had the surface topography measured, and some non-homogeneity on the surface can be credited to pre-existing waviness location. Some features usually associated with the roughness were indeed caused by pre-existing waviness. Deeper honing grooves correlated with the location of waviness hills, while shallower or even absent honing grooves correlated with waviness valleys. Similar behaviour, i.e., stronger or weaker contact, can be expected during engine operation. To analyse the influence of waviness and the applied filtering, computer deterministic simulations of the lubricated tribological contact under sliding conditions were carried out, considering different cut-off values and different counter-body contact sizes. Results showed that without considering the effect of waviness, hydrodynamic pressures are overestimated, while the boundary contact and asperity pressure can be greatly underestimated. The larger the contact size, the larger the effect of waviness.

这项工作研究了实际表面波纹如何影响摩擦副之间的接触。对不同发动机气缸的表面形貌进行了测量，结果表明，表面的一些不均匀性可归因于预先存在的波纹位置。通常与粗糙度有关的一些特征实际上是由预先存在的波浪性引起的。较深的珩磨槽与波浪形丘陵的位置有关，而较浅甚至没有珩磨槽与波浪形山谷有关。类似的行为，即更强或更弱的接触，可以预期在发动机运行期间。为了分析波纹度和滤波的影响，考虑不同的截止值和不同的反体接触尺寸，对滑动条件下润滑摩擦学接触进行了计算机确定性模拟。结果表明，在不考虑波浪度影响的情况下，动水压力会被高估，而边界接触和粗糙压力会被大大低估。接触尺寸越大，波纹效应越大。

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引用次数: 0

Influence of Si-content on the microstructure and wear resistance of multilayer fe-based ultrafine-grained coatings deposited by laser cladding process si含量对激光熔覆多层铁基超细晶涂层组织及耐磨性的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-13 DOI: 10.1016/j.triboint.2026.111704

Zheng Gao , Jingjie Zhang , Guangchun Xiao , Hui Zhang , Hui Chen , Mingdong Yi , Zhaoqiang Chen , Chonghai Xu

This study systematically studied the effect of gradient variation of Si-content on the microstructure evolution and wear performance of multilayer Fe-based ultrafine-grained coatings. When the Si-content ranged from 1.5 to 2.5 wt%, Si-related diffraction peaks emerged in the top layer of the coating. As Si-content increased, both grain size and carbide size of the coating initially decreased and then increased. When the Si-content was 2.0 wt%, the grain and carbide size reached the minimum values of 0.86 μm and 1.04 μm, respectively. Correspondingly, the microhardness of the coating showed a trend of initially increasing and then decreasing, peaking at an average value of 1144 HV_0.2 in the top layer at 2.0 wt% Si. At room temperature and 400 °C, the wear resistance of the coating followed a similar trend, improving initially with increasing Si-content and then declining. Optimal wear resistance was achieved at 2.0 wt% Si, with wear rates of 0.264 × 10⁻⁶ mm³/(N·m) at room temperature and 3.37 × 10⁻⁶ mm³/(N·m) at 400 °C.

本研究系统地研究了si含量梯度变化对多层铁基超细晶涂层组织演变和磨损性能的影响。当si含量在1.5 ~ 2.5 wt%范围内时，涂层顶层出现了与si相关的衍射峰。随着si含量的增加，涂层的晶粒尺寸和碳化物尺寸都先减小后增大。当si含量为2.0 wt%时，晶粒和碳化物尺寸分别达到最小值0.86 μm和1.04 μm。相应的，涂层的显微硬度呈现先升高后降低的趋势，在2.0 wt% Si时，顶层的显微硬度平均达到1144 HV0.2。在室温和400℃时，涂层的耐磨性也呈现出相似的趋势，随着si含量的增加，涂层的耐磨性先提高后下降。在2.0 wt% Si时，获得了最佳的耐磨性，室温下的磨损率为0.264 × 10−6 mm3/(N·m)， 400℃时的磨损率为3.37 × 10−6 mm3/（N·m）。

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引用次数: 0

Material removal behavior and surface evolution in chemical-enhanced magnetorheological shear thickening polishing of titanium alloy slender tubes 钛合金细长管化学增强磁流变剪切增厚抛光材料去除行为及表面演变

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International

Pub Date : 2026-01-13 DOI: 10.1016/j.triboint.2026.111667

Zenghua Fan, Zihao Yang, Xiang Zhang, Jun Gao, Yebing Tian

The spatial limitations present a significant challenge for the inner surface polishing of titanium alloy slender tubes. A chemical-enhanced magnetorheological shear thickening polishing (CMSTP) method is proposed for the inner surface polishing of titanium alloy slender tubes. An eco-friendly CMSTP slurry was developed that exploits the interaction of chemically coordinated, shear thickening, and magnetorheological effects. A material removal rate (MRR) model for CMSTP was established based on the continuity equation and the Navier-Stokes equation. Polishing experiments were conducted to verify the established theoretical model using a customized platform. The maximum deviation between the experiments and the theoretical solutions was controlled at 4.11 %. Comparative experiments of titanium alloy slender tubes were carried out to evaluate the performance of the developed CMSTP slurry. The effects of various critical parameters, including the pH, workpiece rotational velocity, and surfactant concentration, on the MRR and the surface roughness were investigated. A MRR of 0.273 mm³ /min and a surface roughness of 56 nm were obtained under the experimental conditions of pH 3, a workpiece rotational velocity of 1000 r/min, and a surfactant concentration of 0.3 wt%. A smooth surface without convex peaks and deep scratches was obtained by scanning electron microscopy (SEM) and ultra-depth microscope observations.

空间限制对钛合金细长管的内表面抛光提出了重大挑战。提出了一种用于钛合金细长管内表面抛光的化学增强磁流变剪切增厚抛光（CMSTP）方法。开发了一种环保型CMSTP浆料，利用化学协调、剪切增稠和磁流变效应的相互作用。基于连续性方程和Navier-Stokes方程，建立了CMSTP材料去除率模型。在定制的平台上进行了抛光实验，验证了所建立的理论模型。实验结果与理论解的最大偏差控制在4.11 %。通过对钛合金细长管的对比试验，对所研制的CMSTP浆料的性能进行了评价。研究了pH、工件转速和表面活性剂浓度等关键参数对MRR和表面粗糙度的影响。在pH为3、工件转速为1000 r/min、表面活性剂浓度为0.3 wt%的条件下，得到的MRR为0.273 mm³ /min，表面粗糙度为56 nm。通过扫描电子显微镜（SEM）和超深度显微镜观察，获得了光滑的表面，无凸峰和深划痕。

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引用次数: 0