Tribology International最新文献

{"title":"Black phosphorus nanosheet dotted with Fe3O4-PDA nanoparticles: A novel lubricant additive for tribological applications","authors":"Xing Xu ,&nbsp;Fenghua Su ,&nbsp;Han Yu ,&nbsp;Ruizhe Liu ,&nbsp;Zhibiao Xu","doi":"10.1016/j.triboint.2025.110607","DOIUrl":"10.1016/j.triboint.2025.110607","url":null,"abstract":"<div><div>The enhancement of black phosphorus applications and its lubricating properties as an additive are subjects of growing interest. Here, a novel BP/Fe₃O₄-PDA nanocomposite was synthesized by a facile approach. The results suggested that black phosphorus was successfully dotted with spherical Fe₃O₄ and PDA nanoparticles, which induced an amorphous alteration in black phosphorus. The obtained nanocomposites exhibited excellent dispersion stability in soybean oil compared to pure black phosphorus. The tribological performance of BP/Fe₃O₄-PDA nanocomposites in soybean oil and grease was evaluated by a ball-on-disc tribometer under high load. It was found that the use of BP/Fe₃O₄-PDA additives greatly reduced the friction coefficient (by 55.3 % in oil, 64.3 % in grease) and wear, proving to be more effective than BP additives. The findings revealed that the tribofilm comprising Fe₃O₄, PDA, and black phosphorus were generated at the friction interface, and their synergistic lubrication was deemed the primary factor enhancing the lubricating properties of oil and grease by BP/Fe₃O₄-PDA nano-additives. Additionally, the carbon film extracted from soybean oil was regarded as a contributing factor to the superior lubricating properties of BP/Fe₃O₄-PDA when used as additives in oil. This work paves the way for broadening the tribological applications of black phosphorus in lubricating oils and greases.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110607"},"PeriodicalIF":6.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478825","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}

{"title":"Wear due to fatigue initiation","authors":"M. Ciavarella","doi":"10.1016/j.triboint.2025.110592","DOIUrl":"10.1016/j.triboint.2025.110592","url":null,"abstract":"<div><div>Persson and coauthors have recently proposed an extension of the Rabinowicz idea for fatigue wear at different scales of roughness, where Paris’ crack growth law is applied to ”potential” wear particles. However, Persson’s theory suffers from the fact that initial size of defects is unknown and fatigue life is not entirely due to propagation, so we investigate a different formulation, where a law for initiation of cracks is used for a specimen with initial roughness of engineering interest. We find that results (in particular dependence on amplitude of roughness, and on friction coefficient) are qualitatively similar to the original Persson and coworkers’ theory, but may differ substantially quantitatively. As the assumption of a constant fatigue threshold may be incorrect for short cracks, both fatigue limit and fatigue threshold are made dependent of crack size, using the Murakami formulation as one of the possible alternatives. This makes wear rate be sensitive to the fine scale details of the roughness spectrum, which has an effect on increasing wear rate and small particles emission. The model seems to have qualitative trends in agreement with experiments, but obviously wear is a very complex phenomenon and many factors may be not captured.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110592"},"PeriodicalIF":6.1,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergetic lubrication between MoDTC and TiO2 nano-additive: Dynamic evolution of tribofilm induced by tribocatalysis and tribomechanical effect","authors":"Zhikai Fan ,&nbsp;Shanshan Wang ,&nbsp;Yihui Xiang ,&nbsp;Yanfei Liu ,&nbsp;Zeyang Yu ,&nbsp;Xiangyu Ge ,&nbsp;Wenzhong Wang","doi":"10.1016/j.triboint.2025.110608","DOIUrl":"10.1016/j.triboint.2025.110608","url":null,"abstract":"<div><div>Molybdenum dithiocarbamate (MoDTC) can significantly reduce friction and wear through the formation of lubricious tribofilm by decomposition of MoDTC, but it is difficult to regulate the tribochemical behaviors. In this study, TiO₂ nanoparticles are used as nano-additive combined with MoDTC, leading to reduced friction and wear under 50 N. The addition of TiO₂ with proper concentration can promote the formation of lubricious Mo-content tribofilm. Meanwhile, TiO₂ in tribofilm can also lead to enhanced wear-resistance. Moreover, the dynamic evolution of the tribofilm is also investigated under varied conditions to elucidate the synergetic lubrication mechanisms between MoDTC and TiO₂. These findings offer fundamental insights of the lubrication mechanisms of MoDTC when combined with nano-additives from both tribochemical and tribomechanical viewpoints.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110608"},"PeriodicalIF":6.1,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143512038","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}

{"title":"Self-lubricating and wear self-healing of polymer composites reinforced with bifunctional mesoporous silica nanocontainers","authors":"Guo Du ,&nbsp;Qingyu Li ,&nbsp;Feng Zhou ,&nbsp;Xia Zhang","doi":"10.1016/j.triboint.2025.110602","DOIUrl":"10.1016/j.triboint.2025.110602","url":null,"abstract":"<div><div>Polymer-based self-lubricating materials with self-healing ability can overcome the problems of short life-span caused by external damage during friction. This paper proposes a new bifunctional mesoporous silica nanocontainer (Cu/LO@SNF) to enhance the wear self-healing and friction-reducing properties of polymer materials. Using mesoporous silica nanoflowers (SNF) as nanocontainers, Cu nanoparticles as solid lubricant additives, and linseed oil (LO) as an external healing agent. Due to silica nanoflowers' large radial pore structure, their use for loading Cu nanoparticles can effectively prevent nanoparticle aggregation. Meanwhile, silica nanoflowers can also store a large amount of LO. Cu/LO@SNF were combined with epoxy resin (EP) to endow the resin with excellent wear self-healing and anti-wear capabilities. The results of the frictional performance test indicate that the friction coefficient of EP containing 10 wt% Cu/LO@SNF can be as low as 0.085, and the wear rate is reduced by 97.8 % compared with pure EP. During the friction process, Cu NPs and linseed oil stored in silica nanocontainers are released into the contact area of the friction pair. The Cu NPs enhance tribological properties as effective lubricants and aid in repairing wear areas when used with linseed oil. The synergistic effect of Cu NPs and LO enables the wear self-healing rate of the EP to reach 77 %, effectively improving the service life of EP materials.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110602"},"PeriodicalIF":6.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487672","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}

{"title":"Atomic-scale investigation of Ti element regulating the mechanical and tribological performance of FeCrNi MEA","authors":"Wei Cheng ,&nbsp;Hong-Liang Zhao ,&nbsp;Zi-Chao Luo ,&nbsp;Xin-Gong Li ,&nbsp;Jin-Peng Zhu ,&nbsp;Kai-Ming Wang ,&nbsp;Guang-Wei Peng ,&nbsp;Dong Hu ,&nbsp;Xiu-Bo Liu","doi":"10.1016/j.triboint.2025.110604","DOIUrl":"10.1016/j.triboint.2025.110604","url":null,"abstract":"<div><div>Molecular dynamics simulation was conducted to investigate the deformation mechanisms and enhance the mechanical and tribological properties of FeCrNiTi_x MEAs (x = 0.1–0.3). The results show that titanium element contributes to forming dispersed phases, effectively improving the alloy strength and stiffness. At lower titanium concentrations, smaller dispersed phases can cause localized stress concentrations, raising fracture risk during tensile loading. Increasing titanium content promotes a fine-grained microstructure, suppressing dislocation slip and enhancing interface stability. Additionally, titanium incorporation reduces the stacking fault energy, facilitating dislocation network formation and increasing stacking fault roughness. When polycrystalline grain boundaries are damaged, regeneration and migration occur. In contrast, despite the high toughness of twin boundaries, bending or migration does not take place when damage occurs. This research explores the mechanical and tribological properties of FeCrNi alloy, to promote the application and development of these alloys in manufacturing processes.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110604"},"PeriodicalIF":6.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464886","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}

{"title":"A novel oxide layer for achieving ultra-high rolling contact fatigue life of bearing steel","authors":"Zhuofan Xia ,&nbsp;Di Wu ,&nbsp;Long Hao ,&nbsp;Yifeng Li ,&nbsp;Jianqiu Wang ,&nbsp;En-Hou Han","doi":"10.1016/j.triboint.2025.110603","DOIUrl":"10.1016/j.triboint.2025.110603","url":null,"abstract":"<div><div>This study introduces a novel method to enhance the rolling contact fatigue life of bearing steel by forming a crease-like oxide layer on the contact surface. This strengthening way is proposed based on the damage mechanism and ultra-high life in dispersion of fatigue life. Different from conventional surface modification pretreatment methods, this oxide layer can be formed through the reaction of the bearing steel surface with lubricating oil under cyclic rolling stress. This oxide layer can make the fatigue life of bearing steel get comprehensive improvement by delaying subsurface microstructure decay and reducing the likelihood of surface initiation failure.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110603"},"PeriodicalIF":6.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465505","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}

{"title":"A comprehensive review of ceramic additive manufacturing: Advancements in Direct Ink Writing (DIW) and tribological properties of 3D-printed ceramics","authors":"M. Alebrahim ,&nbsp;M.J. Ghazali ,&nbsp;N.H. Jamadon ,&nbsp;Y. Otsuka","doi":"10.1016/j.triboint.2025.110606","DOIUrl":"10.1016/j.triboint.2025.110606","url":null,"abstract":"<div><div>This paper provides an overview of the latest trends in 3D printing of ceramics, with a specific focus on the Direct Ink Writing (DIW) method and tribological considerations. DIW is a flexible and accurate method for depositing ceramic materials, allowing for detailed designs and geometric versatility. It has shown promise in a range of applications, from personalized medical implants to intricate architectural structures. To date, there is a notable absence of comprehensive surveys encompassing the tribological aspects of 3D-printed ceramics within academic discourse. A review paper addressing this gap would significantly contribute to the understanding of the tribological behaviour of 3D printed ceramics and provide valuable insights for further research in this domain. By reviewing recent literature and experimental results, this review intends to offer valuable insights into the latest advancements in ceramic 3D printing using the DIW method.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110606"},"PeriodicalIF":6.1,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465504","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}

{"title":"Tribological response and surface evolution of copper metal matrix composites under continuous sliding conditions at elevated temperatures","authors":"Yelong Xiao ,&nbsp;Hao Xu ,&nbsp;Pingping Yao ,&nbsp;Jiliang Mo ,&nbsp;Yu Cheng ,&nbsp;Mingxue Shen","doi":"10.1016/j.triboint.2025.110601","DOIUrl":"10.1016/j.triboint.2025.110601","url":null,"abstract":"<div><div>Temperature rise is a salient characteristic of friction brakes during continuous braking, and may cause undesirable changes to the performance of friction materials. New insights are put forward here regarding the evolution of frictional behavior and tribological mechanisms of copper metal matrix composites (Cu-MMCs) under continuous sliding conditions at 600 and 800 ℃. The friction coefficients exhibit clear trends across three distinct stages at two temperatures during continuous sliding. At 600 ℃, the wear rate of Cu-MMC increases noticeably with an increase in the sliding time, the friction coefficient initially increases, then experiences a slight decrease, and eventually stabilizes. The wear mechanisms of Cu-MMC evolve from slight adhesive wear, abrasive wear and oxidative wear to mild adhesive wear, oxidative wear and severe abrasive wear. At 800 ℃, as sliding time increases, the friction coefficient decreases sharply at the beginning of sliding, and subsequently stabilizes. The wear rate of Cu-MMC decreases notably with increasing sliding time. The wear mechanisms of Cu-MMC transition from severe abrasive wear, adhesive wear, and oxidative wear to delamination, oxidative wear and mild abrasive wear.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110601"},"PeriodicalIF":6.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464887","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}

{"title":"Effect of bulk and surface mechanical treatments on the tribological properties of Ti-13Nb-13Zr alloy for biomedical applications","authors":"Agnieszka Kowalczyk ,&nbsp;Jarosław Pura ,&nbsp;Agata Sotniczuk ,&nbsp;Halina Garbacz","doi":"10.1016/j.triboint.2025.110605","DOIUrl":"10.1016/j.triboint.2025.110605","url":null,"abstract":"<div><div>Ti-13Nb-13Zr (TNZ) alloy has great potential in the biomedical field due to its fully biocompatible composition and lower Young modulus value compared to the standard titanium biomaterials. As for the commercially pure Ti, the hardness and mechanical strength of TNZ can be enhanced by bulk (cold-rolling) and surface (shot-peening) mechanical treatments. However, it is still unknown how these processes, especially their combination, affect TNZ tribological properties in the simulated body fluids. This work responds to this aspect by investigating the tribological performance of TNZ in the microcrystalline, cold-rolled, shot-peened, and cold-rolled + shot-peened states. The wear behavior of the samples was tested by the pin-on-plate method (with a pin made of Al₂O₃) in the Hanks’ solution at 37°C. Tribological tests were supplemented with surface characterization using microscopy and profilometry techniques, microhardness tests and electrochemical corrosion analysis. The combination of the strengthening processes: cold rolling + shot peening resulted in the highest hardness (approx. 330 HV0.2 – almost 100 units more than for the initial state) and the lowest abrasive wear with an average volume loss of 2.881 mm³, while for the unstrengthened alloy, it amounted to 3.521 mm³. Corrosion tests revealed a correlation between surface treatment (shot peening, which significantly developed topography) and corrosion resistance, as for the grinded samples, passive current density was approx. 2.5–4 times lower than for the shot-peened alloy – for both: initial and cold-rolled states. Nevertheless, for all samples good corrosion properties in Hanks’ solution were received. The presented investigation revealed that the combination of cold rolling and shot-peening is the most promising in terms of TNZ tribo-corrosion performance. Moreover, this study shed light on TNZ degradation mechanisms, which are relevant during the wear process in Hank’s solution.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"206 ","pages":"Article 110605"},"PeriodicalIF":6.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling the friction between solid-liquid two-phase flow and multi-asperity surface: Taking magnetic fluid as an example","authors":"Xiao Liu ,&nbsp;Aisheng Song","doi":"10.1016/j.triboint.2025.110600","DOIUrl":"10.1016/j.triboint.2025.110600","url":null,"abstract":"<div><div>Reducing the friction drag at the solid-liquid interface has been an objective pursued for centuries. Rheological experiments show that friction drag between magnetic fluid and solid surface decreases and then increases with surface roughness under different magnetic fields. We established a friction model for magnetic fluid two-phase flow with rough surfaces, integrating carrier fluid flow resistance (<em>F</em>₁), shear fracture force of field-induced structure (<em>F</em>₂), and adhesion friction of field-induced structure (<em>F</em>₃). This model quantitatively calculates friction drag, aligning well with experimental results. This paper opens up a new perspective for understanding the friction drag between solid-liquid two-phase flow and solid interface, providing an inspirational theoretical basis for drag reduction of solid-liquid two-phase flow.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"206 ","pages":"Article 110600"},"PeriodicalIF":6.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444270","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}