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Tribological behaviour of nano-titanium dioxide filled UHMWPE composites with a variety of micro fillers based on carbon, boron nitride and silicon dioxide under water-lubricated condition
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-24 DOI: 10.1016/j.triboint.2024.110479
Prashant Gangwani , Nazanin Emami , Mitjan Kalin
{"title":"Tribological behaviour of nano-titanium dioxide filled UHMWPE composites with a variety of micro fillers based on carbon, boron nitride and silicon dioxide under water-lubricated condition","authors":"Prashant Gangwani ,&nbsp;Nazanin Emami ,&nbsp;Mitjan Kalin","doi":"10.1016/j.triboint.2024.110479","DOIUrl":"10.1016/j.triboint.2024.110479","url":null,"abstract":"<div><div>Recent advances in the tribology of polymer composites in water-lubricated conditions have focused on achieving a synergistic effect by incorporating multiple fillers into the polymer matrix. This approach requires a comprehensive understanding of how each filler interacts with the other components, something that remains unknown for hard fillers. This study investigates the tribological performance and tribological mechanisms of a hard filler, nano-titanium dioxide, in a short-carbon-fibre-reinforced, ultra-high-molecular-weight-polyethylene (UHMWPE) composite when combined with microfillers that include graphite, hexagonal boron nitride and silicon dioxide. The results reveal that, while composites with nano-titanium dioxide and microfillers improve the friction by 30–53 % compared to basic fibre-reinforced UHMWPE, the nano-titanium dioxide reduced the friction only with boron nitride and silicon dioxide. In these cases, the nano-titanium dioxide contributes to transferred material onto the steel surface where it embeds in a relatively softer layer of material composed of other components transferred from the composite and thereby reduces the friction. In contrast, all the composites have lower wear rates than the basic carbon-fibre-reinforced composite. We present how the nano-titanium dioxide interacts synergistically with all the microfillers, with each filler contributing in its own way to improving the load-bearing capacity and hindering the fibre pullout. Surprisingly, the combination with the graphite microfiller did not reduce the friction, but had the lowest wear rate in this study of 5–8 × 10⁻<sup>8</sup> mm³ /Nm. The impact of the contact pressure on the fillers’ interactions and the tribological performance is also highlighted in this study.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110479"},"PeriodicalIF":6.1,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159764","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}
引用次数: 0
Bending tribo-fatigue behaviors between steel wire rope and rope groove material of offshore rig winch drum
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-24 DOI: 10.1016/j.triboint.2024.110477
Dagang Wang , Hailang Chong , Shirong Ge , Ke Wu , Bo Wang , Chenchen Li , Wei Ji , Jie Zhang , Jianhao Chen , Haiyan Deng , Chengyu Zhang
{"title":"Bending tribo-fatigue behaviors between steel wire rope and rope groove material of offshore rig winch drum","authors":"Dagang Wang ,&nbsp;Hailang Chong ,&nbsp;Shirong Ge ,&nbsp;Ke Wu ,&nbsp;Bo Wang ,&nbsp;Chenchen Li ,&nbsp;Wei Ji ,&nbsp;Jie Zhang ,&nbsp;Jianhao Chen ,&nbsp;Haiyan Deng ,&nbsp;Chengyu Zhang","doi":"10.1016/j.triboint.2024.110477","DOIUrl":"10.1016/j.triboint.2024.110477","url":null,"abstract":"<div><div>The coupling effect of the acceleration/deceleration operation during starting and braking, the continuous winding in, winding out and the transition between the layers of the rope, and the low-frequency vibration of the winch in the hoisting system causes bending tribo- fatigue behaviors between the winch drum wire ropes and the rope groove material in the offshore drilling rigs. A self-made test rig was developed for the bending tribo- fatigue tests between the wire rope and rope groove. The effects of wrap angles, fatigue loads, and fatigue cycles on the tribological properties (the friction coefficient, wear mechanism, volume loss, wear rate, etc.) were studied. The results indicate that an increase in fatigue load and fatigue cycles results in more severe coupling damage to wire ropes subjected to bending tribo-fatigue, while an increase in wrap angle slightly mitigates the severity of this coupling damage. The findings provide theoretical guidance for enhancing the operational reliability of drum wire ropes.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110477"},"PeriodicalIF":6.1,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158923","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
Tribology of PTFE in Hydrogen Atmosphere
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-24 DOI: 10.1016/j.triboint.2024.110481
Shouyi Yin, Ambrose Taylor, Janet S.S. Wong
{"title":"Tribology of PTFE in Hydrogen Atmosphere","authors":"Shouyi Yin,&nbsp;Ambrose Taylor,&nbsp;Janet S.S. Wong","doi":"10.1016/j.triboint.2024.110481","DOIUrl":"10.1016/j.triboint.2024.110481","url":null,"abstract":"<div><div>Hydrogen applications face sealing challenges. Often, these seals are made of PTFE and work under fretting conditions. Experiments in this study were conducted with PTFE against 52100 steel under varying humidity. Results show significant wear of PTFE in hydrogen, regardless of humidity, with PTFE transferring onto steel surfaces. FTIR and XPS analyses reveal that hydrogen's reducing effect suppresses surface metal oxide formation, inhibiting tribochemical reactions. However, when hydrogen is diluted with nitrogen, PTFE's tribological performance improves, though tribochemistry is not promoted. Only with oxygen and water vapour do tribochemical reactions occur in H<sub>2</sub>, where metal fluoride is first formed, followed by carboxylate chelates. These findings highlight the critical role of hydrogen's reducing nature, offering insights for developing advanced sealing materials.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110481"},"PeriodicalIF":6.1,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158539","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}
引用次数: 0
Investigating lubrication capacities of novel 2D hexagonal materials by DFT simulations
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-21 DOI: 10.1016/j.triboint.2024.110475
Haochen Feng , Ziwen Cheng , Zhibin Lu , Q.-C. He
{"title":"Investigating lubrication capacities of novel 2D hexagonal materials by DFT simulations","authors":"Haochen Feng ,&nbsp;Ziwen Cheng ,&nbsp;Zhibin Lu ,&nbsp;Q.-C. He","doi":"10.1016/j.triboint.2024.110475","DOIUrl":"10.1016/j.triboint.2024.110475","url":null,"abstract":"<div><div>The emergence of novel two-dimensional honeycomb materials offers new possibilities in tribology. In the present work, density functional theory (DFT) simulations are employed to explore the lubrication potential. The friction analysis of homojunction sliding models reveals that germanene (R180 configuration), phosphorene, and arsenene, collectively referred to as GPAene, exhibit low sliding energy barriers in comparison with those of graphene and MoS<sub>2</sub>, indicating their potential of serving as lubricants. Under the tensile strain, GPAene homojunctions show highly adjustable friction. In addition, all the heterojunctions composed of GPAene and graphene exhibit extremely low friction. However, in point contact mode, only phosphorene maintains a low friction. The simulation results provide theoretical guidance for experimental exploration and selection of new lubricating materials.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110475"},"PeriodicalIF":6.1,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158915","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
Bulk conformation and shear-induced transitions in bottlebrush poly(alkyl methacrylate): The role of side chain length and polymer flexibility
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-20 DOI: 10.1016/j.triboint.2024.110476
Himanshu Shekhar, Yuma Chikazawa, Yuxi Song, Hedong Zhang
{"title":"Bulk conformation and shear-induced transitions in bottlebrush poly(alkyl methacrylate): The role of side chain length and polymer flexibility","authors":"Himanshu Shekhar,&nbsp;Yuma Chikazawa,&nbsp;Yuxi Song,&nbsp;Hedong Zhang","doi":"10.1016/j.triboint.2024.110476","DOIUrl":"10.1016/j.triboint.2024.110476","url":null,"abstract":"<div><div>Optimal design of polymeric friction modifiers (PFMs) in lubricating oils is crucial for enhancing energy efficiency. This study examines the impact of side chain length on the flexibility and conformation of bottlebrush PFM poly(alkyl methacrylate) in bulk oil solutions and under shear using molecular dynamics simulations. We semi-quantify polymer flexibility through cluster analysis, revealing coil-globule transitions at varying temperatures. Under shear, polymers exhibit translational and rotational motion with conformational changes, driven by shearing and temporary surface adsorption. A concentrated distribution of adsorbed atoms is crucial for stable adsorption in the subsequent translational phase. Polymers with shorter side chains demonstrate stable adsorption with a coil conformation, while those with longer side chains lack stable adsorption, repeating translation-rotation cycles and coil-globule transitions.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110476"},"PeriodicalIF":6.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158916","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}
引用次数: 0
Impact-sliding fretting tribo-corrosion behaviors of Inconel 690 alloy pretreated with HTHP immersion for different durations
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-20 DOI: 10.1016/j.triboint.2024.110468
Guoping Wang, Hailong Xiong, Sijia Zhou, Meigui Yin
{"title":"Impact-sliding fretting tribo-corrosion behaviors of Inconel 690 alloy pretreated with HTHP immersion for different durations","authors":"Guoping Wang,&nbsp;Hailong Xiong,&nbsp;Sijia Zhou,&nbsp;Meigui Yin","doi":"10.1016/j.triboint.2024.110468","DOIUrl":"10.1016/j.triboint.2024.110468","url":null,"abstract":"<div><div>This study subjected Inconel 690 alloy tubes to pre-immersion treatment in high-temperature and high-pressure (HTHP) artificial seawater (3.5 wt% NaCl) for different days (untreated, 1 day, 2 days, and 3 days). Then, impact-sliding fretting tribo-corrosion test rig was used to investigate its damage failure mechanism and electrochemical-corrosion dynamic response behaviors. Results showed that the oxidized corrosion layer that formed among the Inconel 690 alloy tubes surface increasingly densified with increased pre-immersion duration. These reduced the damage degree of fretting interface. However, the pre-formed oxidized corrosion layer accelerated the alloy tube’s electrochemical corrosion process. Additionally, the main impact-sliding fretting tribo-corrosion mechanisms of all test samples were abrasive wear, plastic deformation, and spalling.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110468"},"PeriodicalIF":6.1,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158919","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
Lubricant seepage behavior of porous polyimide cage materials under sliding contact loading
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-19 DOI: 10.1016/j.triboint.2024.110470
Xiangyu Feng, Pengzhe Zhu, Wenzhong Wang
{"title":"Lubricant seepage behavior of porous polyimide cage materials under sliding contact loading","authors":"Xiangyu Feng,&nbsp;Pengzhe Zhu,&nbsp;Wenzhong Wang","doi":"10.1016/j.triboint.2024.110470","DOIUrl":"10.1016/j.triboint.2024.110470","url":null,"abstract":"<div><div>Porous polyimide is a high-performance self-lubricating material widely used as an oil storage medium in aerospace bearing cages. This paper investigates the transient seepage behavior of oil-containing porous cage materials under sliding contact loading. It is found that there are multiple seepage regions within porous media during the seepage process, which interact to facilitate the inflow and outflow of lubricant. The extrusion effect plays a critical role in determining seepage behavior, while the centrifugal effect has a lesser impact on surface seepage rate and lubricant outflow in porous media. The extrusion effect also contributes to the formation of the \"tribological rehydration\" phenomenon. This study provides a theoretical foundation for understanding the continuous oil supply mechanism in aerospace bearing cage materials.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110470"},"PeriodicalIF":6.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158918","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
The tribogram: An AFM-based nanoscale tribocorrosion analysis method incorporating tip convolution effects
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-19 DOI: 10.1016/j.triboint.2024.110471
Hwaran Lee , Jeremy L. Gilbert
{"title":"The tribogram: An AFM-based nanoscale tribocorrosion analysis method incorporating tip convolution effects","authors":"Hwaran Lee ,&nbsp;Jeremy L. Gilbert","doi":"10.1016/j.triboint.2024.110471","DOIUrl":"10.1016/j.triboint.2024.110471","url":null,"abstract":"<div><div>Fretting corrosion, or mechanically assisted crevice corrosion (MACC), at a modular taper junctions of hip implants remains a significant clinical concern. This study introduced a novel atomic force microscopy (AFM)-based method to monitor real-time nanoscale wear and tribocorrosion progression on low carbon cobalt-chromium-molybdenum (CoCrMo) alloy by inducing repetitive nanowear at a fixed location under air (wear only) and phosphate-buffered saline (PBS, wear and corrosion). We visualized and quantified wear evolution in situ using a “tribogram” (height vs. sliding distance vs. wear cycles) while addressing tip convolution effects on large discrepancies in mass balance analysis between bearing-based and calculated true volumes. The tribogram revealed reduced wear in PBS compared to air, possibly due to repassivating oxide effects (topographical rises in tribogram).</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110471"},"PeriodicalIF":6.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158921","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
Novel use of laser melting and optical pre-heat to control white etching layer formation on rail steels
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-18 DOI: 10.1016/j.triboint.2024.110472
Yue Yang , Alkim Aydin , Kamran Mumtaz , Markus Januschewsky , Alexander Meierhofer , Roger Lewis
{"title":"Novel use of laser melting and optical pre-heat to control white etching layer formation on rail steels","authors":"Yue Yang ,&nbsp;Alkim Aydin ,&nbsp;Kamran Mumtaz ,&nbsp;Markus Januschewsky ,&nbsp;Alexander Meierhofer ,&nbsp;Roger Lewis","doi":"10.1016/j.triboint.2024.110472","DOIUrl":"10.1016/j.triboint.2024.110472","url":null,"abstract":"<div><div>With the development of the railway industry, rail damage like Rolling Contact Fatigue (RCF) and White Etching Layer (WEL) are significant safety concerns. This study explores using lasers to replicate WELs on rail steels in a controlled, cost-efficient way in the laboratory. By optimising laser parameters like power, speed, and material, WELs similar to those in service rails were produced on R260, R350HT, and R400HT rail grades. The laser method yields precise WEL formation with thicknesses between 8 and 145 μm, offering better control and consistency than conventional methods. While thermally processed WELs are not fully representative of those formed by thermo-mechanical loading, they share similar hardness and size. This advancement supports further tribological testing and research on RCF-related damage.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110472"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159765","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
Molecular dynamics study on the interlayer friction behavior of two-dimensional binary materials under non-fixed mismatched angles: A comprehensive analysis of boron nitride nanosheets
IF 6.1 1区 工程技术
Tribology International Pub Date : 2024-12-18 DOI: 10.1016/j.triboint.2024.110462
Kejing Wang , Jianzhang Huang , Yi Cai , Yingjing Liang , Qiang Han
{"title":"Molecular dynamics study on the interlayer friction behavior of two-dimensional binary materials under non-fixed mismatched angles: A comprehensive analysis of boron nitride nanosheets","authors":"Kejing Wang ,&nbsp;Jianzhang Huang ,&nbsp;Yi Cai ,&nbsp;Yingjing Liang ,&nbsp;Qiang Han","doi":"10.1016/j.triboint.2024.110462","DOIUrl":"10.1016/j.triboint.2024.110462","url":null,"abstract":"<div><div>Two-dimensional binary materials, due to their unique optoelectronic properties and excellent mechanical stability, are ideal candidates for addressing tribological issues in micro-nano electromechanical systems. This study employs molecular dynamics simulations to investigate the interlayer behavior of boron nitride under rotational friction. We systematically analyzed the effects of normal load, uniaxial strain, sliding velocity, temperature, and substrate stiffness on friction performance. Results indicate that rotational sliding reduces the friction force differences under various directional strains. Complex coupling relationships exist among these factors, such as increased load enhancing thermally activated lubrication mechanisms. The study also captured an atomic trajectory selection mechanism that controls atomic motion via speed, its reversibility and controllability offering a new way to dynamically regulate interlayer friction.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110462"},"PeriodicalIF":6.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158912","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
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