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

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-10 DOI: 10.1016/j.triboint.2026.111825

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

{"title":"Polarity-dependent wear in electrified steel-steel contacts with polyalphaolefin and fatty acid/phosphate additives","authors":"Amel Krishnan , Pramoda K. Nayak , M. Kamaraj , Sundara Ramaprabhu","doi":"10.1016/j.triboint.2026.111825","DOIUrl":"10.1016/j.triboint.2026.111825","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111825"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192337","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

Bias-induced sp³ bonding gradient design for enhancing the frictional bearing capacity of superhard Ta-C coating 提高超硬Ta-C涂层摩擦承载能力的偏压诱导sp³键合梯度设计

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-04 DOI: 10.1016/j.triboint.2026.111780

Zhengwei Wang , Zhehao Zhang , Jinghua Li , Yongyong He , Yang Li

{"title":"Bias-induced sp³ bonding gradient design for enhancing the frictional bearing capacity of superhard Ta-C coating","authors":"Zhengwei Wang , Zhehao Zhang , Jinghua Li , Yongyong He , Yang Li","doi":"10.1016/j.triboint.2026.111780","DOIUrl":"10.1016/j.triboint.2026.111780","url":null,"abstract":"<div><div>Tetrahedral amorphous carbon (Ta-C) coatings are widely utilized for their exceptional hardness and superior wear resistance. However, under high-load sliding conditions, Ta-C coatings are often susceptible to severe spalling failure due to the inherent brittleness and high residual internal stress. To enhance the frictional load-bearing capacity, Ta-C coatings with graded sp³ bonding configurations were fabricated by precisely modulating the substrate bias during filtered cathodic vacuum arc (FCVA) deposition. In this study, three types of gradient structure and three constant structure coatings were prepared for comparative analysis. Compared with the constant structure, the gradient coatings feature multilayered interfaces with continuously transitioning bonding configurations and a high surface sp³ fraction, which leads to higher frictional bearing capacity. Notably, the gradient coating with a surface sp³ fraction of 83.7 % exhibited the highest hardness (55.3 GPa), elastic modulus (476.6 GPa), and optimized toughness and adhesion. Under lubricated sliding at a maximum initial Hertzian contact stress of 1028 MPa, the constant structure coatings suffered from comprehensive delamination. In contrast, the gradient coatings maintained their structural integrity, achieving an ultra-low friction coefficient of 0.033 with negligible wear. Microstructural analysis revealed that superlattice-like multilayer features within the gradient structure promote stress redistribution and crack deflection. This work demonstrates that the synergy of gradient bonding design and multilayer modulation provides an effective strategy to overcome the brittleness and load-bearing limitations of superhard Ta-C coatings in high load applications.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111780"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192420","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

Failure assessment of crack propagation in as-built LPBF 17–4PH stainless steel under rolling contact fatigue lpbf17 - 4ph不锈钢在轧制接触疲劳下裂纹扩展失效评估

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-05 DOI: 10.1016/j.triboint.2026.111789

Nicola Zani , Candida Petrogalli , Kang Shu , Angelo Mazzù , Giorgio Donzella

{"title":"Failure assessment of crack propagation in as-built LPBF 17–4PH stainless steel under rolling contact fatigue","authors":"Nicola Zani , Candida Petrogalli , Kang Shu , Angelo Mazzù , Giorgio Donzella","doi":"10.1016/j.triboint.2026.111789","DOIUrl":"10.1016/j.triboint.2026.111789","url":null,"abstract":"<div><div>This work presents an integrated experimental–numerical study on the rolling contact fatigue (RCF) behaviour of as-built Laser Powder Bed Fused (<span>L</span>-PBF) 17–4PH stainless steel lubricated with water and oil. Controlled twin-disc tests, finite element analyses and modelling were combined to clarify the influence of lubrication on crack initiation and propagation mechanisms. Water-based lubrication promoted accelerated crack growth due to hydraulic pressurization and enhanced shear stresses, while oil lubrication provided a stable elastohydrodynamic separation, delaying crack initiation and mitigating branching. A novel predictive framework was formulated by incorporating elastohydrodynamic similarity parameters into a generalized crack-growth law, enabling the quantification of mechanical–tribological coupling effects. The proposed model exhibited strong agreement with experimental data (R² = 0.75, RMSE = 0.195), confirming the synergistic contribution of stress intensity and viscous dissipation in controlling fatigue damage evolution. Furthermore, the Failure Assessment Diagram (FAD) methodology was extended to account for finite-life and lubrication effects, successfully delineating the transition from crack arrest to propagation across pressure regimes. The developed approach provides a unified, physically consistent basis for assessing lubrication-dependent fatigue performance in additively manufactured steels, offering enhanced predictive capability for RCF design of AM components.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111789"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192424","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

Comparative tribological behavior of phosphazene derivatives with different fluorine substituents in three base oils 含不同氟取代基的磷腈衍生物在三种基础油中的摩擦学行为比较

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-03 DOI: 10.1016/j.triboint.2026.111788

Xixiang Wang , Shunzhen Ren , Yuefeng Ma , Zhipeng Li , Tianhui Ren

{"title":"Comparative tribological behavior of phosphazene derivatives with different fluorine substituents in three base oils","authors":"Xixiang Wang , Shunzhen Ren , Yuefeng Ma , Zhipeng Li , Tianhui Ren","doi":"10.1016/j.triboint.2026.111788","DOIUrl":"10.1016/j.triboint.2026.111788","url":null,"abstract":"<div><div>In this work, three phosphazene derivatives (HCCP-CH<sub>3</sub>, HCCP-CF<sub>3</sub> and HCCP-OCF<sub>3</sub>) were synthesized and lubrication mechanisms characterized. The tribological behaviors as additives was evaluated in vegetable oil (JVBO), pentaerythritol tetraoleate (PETO-4) and coal-to-liquid (CTL) by using a four-ball friction tester under a wide range of concentrations and loads, which indicates that all three phosphazene derivatives have excellent load-carrying capacity, anti-wear, and friction-reducing properties. The characterizing results for the tribofilm show that the fluorinated phosphonitrile derivatives significantly enhanced the tribological performance, among which HCCP-OCF3 exhibits the most remarkable friction-reducing and anti-wear properties. The thermogravimetric analysis (TGA) results show that HCCP-OCF<sub>3</sub> owns the higher thermal stability for among these three structures. The formation mechanism was an initial iron oxide layer forms under thermal and mechanical stress, followed by a compact Fe–F/Fe–O–P layer serving as an extreme-pressure barrier, and a Fe–N layer developing near the steel surface due to nitrogen diffusion. The results demonstrate that the substitution structure of phosphazene derivatives significantly influences tribofilm formation, friction behavior, and extreme-pressure performance, revealing their feasibility as integrated lubricating and flame-retardant additives for advanced lubrication systems.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111788"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192425","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

Optimizing surface textures of polycrystalline diamond compact for tribological behavior improvement under vacuum thermal cycling 在真空热循环条件下优化聚晶金刚石压片表面织构以改善摩擦学性能

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-13 DOI: 10.1016/j.triboint.2026.111843

Xuejiao Sun , Lei Chen , Ruizhi Jia , Baochang Liu

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

Tribology International Pub Date : 2026-07-01 Epub 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

{"title":"Multi-scale analysis and modeling of material removal process for ultrasonic vibration-assisted polishing","authors":"Tianqi Zhang , Tian Shi , Weifeng Yao , Lihui Zhang , Jinzhong Wu , Jianming Zheng , Erlin Zhang , Tianbiao Yu","doi":"10.1016/j.triboint.2026.111812","DOIUrl":"10.1016/j.triboint.2026.111812","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111812"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192317","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

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

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-06 DOI: 10.1016/j.triboint.2026.111750

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

{"title":"Influence of temperature and crossing angle on the tribo-corrosion-fatigue behaviors of steel wire ropes of winch drum in offshore drilling rig","authors":"Bo Wang , Dagang Wang , Shirong Ge , Hailang Chong , Weiguang Chen , Dekun Zhang","doi":"10.1016/j.triboint.2026.111750","DOIUrl":"10.1016/j.triboint.2026.111750","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111750"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192345","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

Immature polymeric nanoparticles as promising lubricant additives enable robust oil-based lubrication and efficient waste-to-resource conversion 未成熟的聚合物纳米颗粒作为有前途的润滑剂添加剂，可以实现坚固的油基润滑和有效的废物到资源的转化

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-04 DOI: 10.1016/j.triboint.2026.111791

Zihao Mou , Jinyu Yao , Lu Wang , Yangdong He , Bin Zhao , Zhijun Wang , Ying Li , Weiwei Tang , Zhiqiang Jiang , Baogang Wang

{"title":"Immature polymeric nanoparticles as promising lubricant additives enable robust oil-based lubrication and efficient waste-to-resource conversion","authors":"Zihao Mou , Jinyu Yao , Lu Wang , Yangdong He , Bin Zhao , Zhijun Wang , Ying Li , Weiwei Tang , Zhiqiang Jiang , Baogang Wang","doi":"10.1016/j.triboint.2026.111791","DOIUrl":"10.1016/j.triboint.2026.111791","url":null,"abstract":"<div><div>Separation and application of immature nanoparticles from the synthesis system of polymeric nanoparticles (PNPs) is a cost-effective route to improve the utilization rate of monomers. Here, for the first time, mature and immature polydopamine nanoparticles (mPNPs and imPNPs) with a total yield of up to 75.7 % were separated from the ammonia-driven synthesis system via centrifugation and dialysis, and further transformed into the polyelectrolyte-modified PNPs (mPPNPs and imPPNPs) in a simple strategy. These PPNPs exhibited respectable colloidal stability and tribological properties as lubricant additives of PEG200. Tribological evaluations reflected that the optimal doses of mPPNPs and imPPNPs are 1.0 wt% and 0.5 wt%, respectively. At these doses, the friction and wear reductions by imPPNPs (38.2 % and 63.7 %) were higher than those of mPPNPs (37.6 % and 61.6 %), which is attributed to the smaller size and higher charge density of imPPNPs than mPPNPs. Moreover, the tribological stability of imPPNPs is better than that of mPPNPs under heavy-load, high-speed, long-duration, and start-stop tests. Potential-controlled friction experiments and wear analyses confirmed that the good adsorption ability of the polyelectrolyte shell, the strong adhesion and chelation effects of polydopamine structures, and the deposition of hybrid tribofilm should be responsible for the robust tribological behaviors of imPPNPs. This study highlights the prospect of imPNPs in tribology, enabling waste-to-resource conversion and providing new insights into green lubrication.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111791"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192418","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

Influence of ammonia on lubricant degradation and tribological behavior of cylinder liner piston ring system 氨对润滑油降解及缸套活塞环系统摩擦学性能的影响

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-04 DOI: 10.1016/j.triboint.2026.111796

Zetong Wang , Yuxuan Sheng , Yuanqi Mai , Xuan Ma , Xing Xu , Bo Li , Chuixiao Li

{"title":"Influence of ammonia on lubricant degradation and tribological behavior of cylinder liner piston ring system","authors":"Zetong Wang , Yuxuan Sheng , Yuanqi Mai , Xuan Ma , Xing Xu , Bo Li , Chuixiao Li","doi":"10.1016/j.triboint.2026.111796","DOIUrl":"10.1016/j.triboint.2026.111796","url":null,"abstract":"<div><div>Ammonia fuel, characterized by its hydrogen-rich and carbon-free properties, has garnered significant attention in the field of engines. However, the incylinder environment generated by the fuel and its combustion products may alter the tribological behavior of the engine, thereby impacting the reliability and durability of critical components such as the cylinder liner-piston ring (CLPR) friction pair. This study establishes an experimental protocol to simulate the degradation of lubricating oil induced by ammonia fuel in engines and to assess the tribological performance of the aged oil. Based on the analysis of lubricating oil properties influenced by ammonia and tribological testing results, the degradation mechanism of lubricating oil and the surface damage mechanism of the cylinder liner caused by ammonia were evaluated. Studies have demonstrated that the presence of ammonia impairs the performance of lubricating oils, including increasing kinematic viscosity and altering the total base number (TBN). Additionally, research highlights that ammonia escape characteristics should be considered a critical factor in investigating the tribological behavior of CLPR in ammonia engines. This study offers an exploratory reference for the design of experimental protocols related to the tribological behavior of CLPR in ammonia engines.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111796"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192419","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

Influence of inflammatory environment on the fretting corrosion of CoCrMo–Ti6Al4V alloy pairs at the hip head–neck interface 炎症环境对CoCrMo-Ti6Al4V合金对髋头颈界面微动腐蚀的影响

IF 6.1 1区工程技术

Tribology International Pub Date : 2026-07-01 Epub Date: 2026-02-04 DOI: 10.1016/j.triboint.2026.111793

Jian Pu , Xing Peng , Ruijuan Liu , Shu Yang , Yali Zhang , Xiaogang Zhang , Chao Zhang , Jian Song , Zhongmin Jin

{"title":"Influence of inflammatory environment on the fretting corrosion of CoCrMo–Ti6Al4V alloy pairs at the hip head–neck interface","authors":"Jian Pu , Xing Peng , Ruijuan Liu , Shu Yang , Yali Zhang , Xiaogang Zhang , Chao Zhang , Jian Song , Zhongmin Jin","doi":"10.1016/j.triboint.2026.111793","DOIUrl":"10.1016/j.triboint.2026.111793","url":null,"abstract":"<div><div>Implantation of artificial hip joints frequently induces local inflammatory responses, resulting in the accumulation of reactive oxygen species (ROS) such as H₂O₂ in peri-prosthetic fluid. These species critically affect fretting corrosion at the femoral head–neck interface. In this study, the fretting corrosion behavior of a CoCrMo–Ti6Al4V alloy pair was examined under simulated inflammatory conditions by introducing H₂O₂. A running condition fretting map (RCFM) was established, identifying three fretting regimes: partial slip (PSR), mixed fretting (MFR), and gross slip (GSR). Compared with normal physiological conditions, the presence of H₂O₂ markedly accelerated corrosion and aggravated material degradation across all regimes. The damage mechanisms of the Ti6Al4V–CoCrMo pair vary significantly across different regimes: abrasive wear and tribocorrosion dominate in PSR; adhesive wear and intensified tribocorrosion occur in MFR; and in GSR, severe abrasive wear, tribocorrosion were observed. Increasing H₂O₂ concentration enhanced thermodynamic stability but intensified corrosion kinetics. Concurrently, the dominant damage mechanism transitions from abrasive wear to tribocorrosion characterized by spallation. These collectively lead to a marked increase in material loss and metal ion release. Overall, H₂O₂ promotes cathodic depolarization and the formation of mechanically unstable oxide films, thereby strengthening corrosion-wear synergy and exacerbating material damage under inflammatory conditions.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"219 ","pages":"Article 111793"},"PeriodicalIF":6.1,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146192426","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