Tribology International最新文献

{"title":"Optimizing heat transportation features of magneto-Carreau nanofluid flow through novel machine learning algorithm with the immersion of chemical process for inclined cylindrical surface","authors":"Chenxu Duan ,&nbsp;Amjad Ali Pasha ,&nbsp;Zahoor Shah ,&nbsp;Aqsa Mahmood Minhas ,&nbsp;Waqar Azeem Khan ,&nbsp;Hassan Qansh ,&nbsp;Nazrul Islam","doi":"10.1016/j.triboint.2025.110619","DOIUrl":"10.1016/j.triboint.2025.110619","url":null,"abstract":"<div><div>Heat transfer in a mixed bioconvection flow of gyrotactic microorganisms and a Carreau nanofluid model across stretchable cylinder with fluctuating magnetic field effect and binary chemical reactions is investigated in this study. The study focuses on fluctuating heat source changes and non-uniform thermal conductivity patterns. This nano-bioconvection flow example is estimated using a passively controlled nanofluid pattern, which is thought to be more physically accurate than actively controlled nanofluids. With the help of the Levenberg-Marquardt backpropagation algorithm and non-linear autoregressive with exogenous inputs (LMBA-NARX), a stochastic technique, the goal of this research project is to describe the model and valuation of a differential mathematical system of the effect of bioconvection and chemical reaction on Magneto-Carreau nano fluid. This will make it possible to calculate the dynamics in a more precise, trustworthy, and proficient manner. Using the Mathematica software’s Adams approach, a reference dataset for LMBA-NARX is created for the many significant parameters of the model including curvature parameter λ, magnetic field M, mixed convection Ri, power law index n, Prandtl number Pr and Buoyancy free ration factor Nr representing different situations. In order to improve and compete the estimated outcomes with standard solutions, the outcomes of reference data are trained by including eighty percent for training and twenty percent for validation and testing methods. The stability and accuracy of LMBA-NARX is endorsed through mean square error fitness curves, regression analysis, autocorrelation of error, correlation between input and error, measured by histogram plots and evaluation of absolute errors. The exceptional measures of performance in terms of MSE are attained at level 9.5557E-13, 3.1914E-13, 4.23333E-13, 2.3363E-11, 5.2793E-15, 2.0728E-15 and 2.7701E-11 against 128, 66, 58, 73, 115, 73 and 78 epochs. The Carreau nanofluid’s velocity goes down with the increase in curvature, magnetic field, mixed convection, power law index, and buoyancy force ratio factor and the temperature of the Carreau nanofluid is inversely proportional to curvature and Prandtl number.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110619"},"PeriodicalIF":6.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143619672","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":"Realizing exceptional grinding performance on cyanate ester using developed novel composite systems","authors":"Shilong Dai ,&nbsp;Zhenyu Zhang ,&nbsp;Leilei Chen ,&nbsp;Xiaofei Yang ,&nbsp;Wenqing Ge ,&nbsp;Guoyong Zhao ,&nbsp;Xuye Zhuang ,&nbsp;Yuming Wang ,&nbsp;Shenglong Li","doi":"10.1016/j.triboint.2025.110633","DOIUrl":"10.1016/j.triboint.2025.110633","url":null,"abstract":"<div><div>Novel composite system was developed, including real time force and temperature monitoring devices and minimum quantity lubrication (MQL) system. During MQL grinding, grinding force, temperature, blockage of a grinding wheel, surface roughness Sa and specific grinding energy are 0.9 N, 24 ℃, 15.49 %, 0.227 μm and 15.08 J/mm³ respectively, reducing 84.21 %, 51.81 %, 75.4 %, 88.4 % and 80 % correspondingly, compared with those of dry grinding. A motion model of single grain is proposed, and geometric contact arc length calculated is 44.76 μm. At optimal feed rate of 200 mm/min, the maximum and critical undeformed thicknesses of a chip are 0.05 and 2 μm, respectively. Infrared spectroscopy shows that crosslinking grid of cyanate ester was broken, and short-chain was formed on ground surface.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110633"},"PeriodicalIF":6.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578397","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":"Finite element analysis and experimental study on fretting wear of different contact surfaces of fir-tree joint","authors":"Tao Lu,&nbsp;Xin Wu,&nbsp;Yigang Wang,&nbsp;Ping Shang,&nbsp;Zefei Zhu","doi":"10.1016/j.triboint.2025.110631","DOIUrl":"10.1016/j.triboint.2025.110631","url":null,"abstract":"<div><div>Under extreme load conditions of aircraft engines, the multi-tooth structure of the fir-tree joint can improve power output, but it also causes uneven fretting wear between contact surfaces, threatening reliability. This study analyzes the fretting wear of multi-tooth contact surfaces through experiments and simulations. The experimental results show a progressive wear phenomenon, where the closer the contact surface is to the root of the blade, the less the wear depth. Furthermore, an energy model was constructed and validated to investigate the effects of mean load, stress ratios, and friction coefficient, revealing that relative slip dominates the fretting wear mechanism of different contact surfaces. A multi-tooth rigid displacement superposition model was proposed to illustrate the progressive wear phenomenon of fir-tree joints.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110631"},"PeriodicalIF":6.1,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562731","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":"Comparative study of wear behaviour of ZA37 alloy, ZA37/SiC composite, and grey cast iron under lubricated conditions: Predictive modeling by machine learning","authors":"Khursheed Ahmad Sheikh ,&nbsp;Mohammad Mohsin Khan ,&nbsp;Mohd Nadeem Bhat","doi":"10.1016/j.triboint.2025.110623","DOIUrl":"10.1016/j.triboint.2025.110623","url":null,"abstract":"<div><div>In this study, sliding wear characteristics of ZA37 alloy, ZA37/SiC composite, and grey cast iron were evaluated under lubricated conditions using base oil and base oil blended with 5 wt% graphite particles (size ranging from 10 µm to 100 µm). Wear tests revealed that reinforcing ZA37 alloy with silicon carbide (SiC) particles substantially enhances the wear resistance. The best wear performance was observed with base oil blended with 10 µm graphite particles. The response surface methodology (RSM) results revealed the significance of process parameters on wear rate. It was found that load exerted the highest influence on wear reduction. The study's findings show that the RF model (R² = 85 %) demonstrates its superior capacity to elucidate the variability in the test data compared to the SVR model (R² = 62 %).</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110623"},"PeriodicalIF":6.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578401","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":"Evolution mechanism of wear characteristics of cylinder liner and piston ring under starved lubrication condition","authors":"Baofeng Zhang ,&nbsp;Chang Ge ,&nbsp;Xing Xu ,&nbsp;Lining Liu ,&nbsp;Xuan Ma ,&nbsp;Ardian Morina ,&nbsp;Xiqun Lu","doi":"10.1016/j.triboint.2025.110622","DOIUrl":"10.1016/j.triboint.2025.110622","url":null,"abstract":"<div><div>This study investigates the sliding wear behavior of cylinder liners and piston rings under starved lubrication conditions, using a step-loading method to analyze the wear state transition of the cylinder liner. The wear scar surface and interface characteristics under different wear conditions were examined using optical microscopy (OM), white light interferometry, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The study also explores the mechanism behind the wear state transition. The results show that the friction coefficient initially increases, then decreases, and increases again with increasing load. The initial rise is attributed to an increase in surface roughness. As the tribo-layer forms, the friction coefficient gradually decreases. However, with a further increase in load, the tribo-layer begins to wear, leading to scuffing and a rapid increase in the friction coefficient. Graphite and phosphorus eutectic in the cylinder liner are the primary contributors to crack formation in both the tribo-layer and the substrate. Furthermore, the tribofilm formed on the initial wear scar surface also contributes to crack formation.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"208 ","pages":"Article 110622"},"PeriodicalIF":6.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643865","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":"Prediction of high temperature thermal contact conductance considering radiation effects based on fractal theory","authors":"Mengjun Chen ,&nbsp;Zhi Xie ,&nbsp;Ping Zhang ,&nbsp;Wenlei Lian","doi":"10.1016/j.triboint.2025.110620","DOIUrl":"10.1016/j.triboint.2025.110620","url":null,"abstract":"<div><div>High temperature thermal contact conductance is a crucial parameter affecting the performance of thermal control and thermal protection systems in many engineering applications under extreme conditions. In this paper, the rough surface of high temperature Inconel 718 alloy (HTA) was characterized and reconstructed based on fractal theory satisfied with a three-dimensional W-M function. The mechanical deformation of contact model was estimated in considering three types of mechanics at the contact points: elastic, elastoplastic, and plastic. The heat transfer between contact surfaces was analyzed account for the conduction of contact points and the radiation between rough surfaces under high temperature conditions. The effects of pressure (0.1–0.6 MPa), temperature (650–1100 K), and fractal parameters on thermal contact conductance were studied through the proposed model. The results show that the contribution of solid conduction and radiation to total thermal contact conductance increases from 45 % to 73 % and from 14 % to 27 % with increasing pressure and temperature, respectively. Also, the thermal contact conductance increases with decreasing and increasing the fractal parameter of D and G, respectively, due to the simulated surface becomes smoother. And the variation tendency is more significant at higher interface pressure. Additionally, the accuracy of the thermal contact resistance prediction model was validated by comparing the predicted results with experimental data.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110620"},"PeriodicalIF":6.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562730","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":"Fabrication of multilayer graphene sheets modified diatom biosilica microcapsules for enhanced frictional and mechanical properties","authors":"Mohan Li ,&nbsp;Shupei Liu ,&nbsp;Xinfang Zhang ,&nbsp;Lichao Wan ,&nbsp;Ming Huang ,&nbsp;Xiujie Jiang ,&nbsp;Hui Xiong ,&nbsp;Congshu Huang ,&nbsp;Hong Gao ,&nbsp;Weikang Zhao ,&nbsp;Yuxin Zhang","doi":"10.1016/j.triboint.2025.110621","DOIUrl":"10.1016/j.triboint.2025.110621","url":null,"abstract":"<div><div>Graphene has demonstrated significant potential in the fields of lubrication and wear resistance, owing to its unique structure and exceptional properties. However, the tendency of graphene sheets to agglomerate limits its broader application. Herein, we report a novel multilayer graphene sheet modified diatomite (DE) microcapsule (Graphene@DE). After further surface modification (Graphene@DE-F), the microcapsules can significantly improve tribological and mechanical properties. Tribological tests showed that uniformly dispersed Graphene@DE-F microcapsules have significant anti-friction and anti-wear performance. Specifically, the coefficient of friction (COF) decreased by 86.4 %, wear rate decreased by 64.7 %, mass loss decreased by 42.2 % and thickness loss decreased by 30.7 %. Furthermore, the tensile properties and basic mechanical properties were also improved. The elastic modulus increased by 5.3 %, tensile strength increased by 7.3 %, Young's modulus increased by 13.6 %, and hardness increased by 41.7 %.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110621"},"PeriodicalIF":6.1,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578400","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":"Application of finite element analysis and computational fluid dynamics in machining AISI 4340 steel","authors":"Haniff A. Rahman ,&nbsp;Jaharah A. Ghani ,&nbsp;Mohammad Rasidi Mohammad Rasani ,&nbsp;Wan Mohd. Faizal Wan Mahmood ,&nbsp;Saima Yaaqob ,&nbsp;Mohd Syafiq Abd Aziz","doi":"10.1016/j.triboint.2025.110616","DOIUrl":"10.1016/j.triboint.2025.110616","url":null,"abstract":"<div><div>AISI 4340 is a low-alloy steel with moderate carbon content that has garnered significant attention due to its remarkable properties, including high strength, toughness, and heat resistance. These characteristics make it highly desirable across industries such as construction, automotive, and aerospace. However, machining AISI 4340 poses substantial challenges due to the complex thermomechanical loading and high strain rates involved, which generate significant heat. This heat leads to accelerated tool wear, diminished productivity, and poor surface quality. High-speed machining (HSM) processes have shown promise in improving material removal rates and surface finish quality. However, the elevated temperatures in the cutting zone remain a critical concern, particularly in terms of tool durability. In response to these challenges, the development of virtual models has gained importance for reducing research time and costs. This review synthesizes relevant literature from the past decade, focusing on the application of Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) in machining processes involving AISI 4340 steel. It highlights the critical role of simulation techniques in optimizing machining processes, addressing key challenges, and improving overall operational efficiency and precision. For instance, FEA is extensively used for chip formation and machining response prediction, requiring careful consideration of cutting parameters and meshing quality to ensure accuracy. Meanwhile, CFD studies have primarily explored low cutting speeds and minimum quantity lubrication (MQL) systems, but not under high-speed cutting conditions. Most studies conducted have utilized FEA and CFD separately. Therefore, this review examines current trends and future directions, including the integration of CFD and FEA models for high-speed machining applications. Notably, most research on AISI 4340 machining has concentrated on improving cutting tools, optimizing cutting parameters, and advancing modelling techniques under dry machining conditions, but limited attention to coolant-assisted machining or Minimum Quantity Lubrication (MQL) application. Another identified research gaps, such as the limited exploration of integrated CFD-FEA models and high-speed machining under MQL conditions, provide avenues for future improvements in machining AISI 4340 steels.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110616"},"PeriodicalIF":6.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534954","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 Ni–Mo–W–V martensitic steel for hot working dies: Improved elevated–temperature mechanical properties and wear resistance via thermally stable MC nanoprecipitates","authors":"Junyu Chen ,&nbsp;Pengfei Jin ,&nbsp;Shujing Wang ,&nbsp;Chenhui Zhu ,&nbsp;Minheng Xu ,&nbsp;ZhiQiang Jia ,&nbsp;Xiao Liu ,&nbsp;Chao Zhao ,&nbsp;Cheng Zhang ,&nbsp;Jinfeng Huang","doi":"10.1016/j.triboint.2025.110618","DOIUrl":"10.1016/j.triboint.2025.110618","url":null,"abstract":"<div><div>With the continuous advancement of industrial technologies, there is an increasing demand for hot working dies that can withstand higher operational temperatures and more severe loading conditions. Consequently, hot working die steels must exhibit exceptional elevated temperature strength to improve wear resistance. In this study, a martensitic low–alloy 23CrNi3Mo2WV (PG) steel is developed by incorporating Mo, W, and V to promote the precipitation of MC nanoscale carbides. Experimental results demonstrate that the ultimate tensile strength of PG reaches 543 ± 15 MPa at 700 °C, which is 322 ± 20 MPa higher than that of 5CrNiMo steel. Furthermore, the wear rate of PG is 4.39 ± 0.24 × 10^–7 mm³/N/m after a wear test at 500 °C, significantly lower than that of 5CrNiMo. Microstructural analysis further reveals the precipitation of needle–like MC nanocarbides in the PG steel after tempering, which exhibits higher thermal stability relative to M₃C carbides in the 5CrNiMo steel. The MC carbides follow a Baker–Nutting (B–N) orientation relationship (OR) of <span><math><mrow><msub><mrow><mo>(</mo><mn>100</mn><mo>)</mo></mrow><mrow><mtext>MC</mtext></mrow></msub><msub><mrow><mo>/</mo><mo>/</mo><mo>(</mo><mn>100</mn><mo>)</mo></mrow><mrow><mtext>α</mtext><mo>′</mo></mrow></msub></mrow></math></span> with the martensitic matrix, and this B–N OR is remained following the wear test at 500 °C. This stable orientation relationship in PG steel contributes to the higher strength and lower wear rate compared to 5CrNiMo steel. Therefore, PG steel is a promising material for hot working die applications, offering an extended service life at elevated temperatures.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110618"},"PeriodicalIF":6.1,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535061","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":"The SiO2:TiO2 hybrid biodegradable nanolubricant for sustainable machining: The stability, thermo-physical and tribology perspectives","authors":"Nurlisa Hamzan ,&nbsp;Irnie Azlin Zakaria ,&nbsp;Jaharah Abdul Ghani ,&nbsp;Nurul Hayati Abdul Halim ,&nbsp;W.H. Azmi ,&nbsp;Zainoor Hailmee Solihin ,&nbsp;Ahsana Aqilah Ahmad","doi":"10.1016/j.triboint.2025.110614","DOIUrl":"10.1016/j.triboint.2025.110614","url":null,"abstract":"<div><div>The increase in awareness of environmental issues and economic concerns has enabled the emergence of sustainable machining termed Minimum Quantity Lubrication (MQL). However, the extreme conditions of high-speed cutting hard-to-cut materials have posed new challenges for MQL machining. Thus, the Nano MQL (NMQL) is introduced. In this research, hybrid SiO₂:TiO₂ nanoparticles are dispersed in a biodegradable base oil, and the stability, thermo-physical properties, and tribological perspectives are comprehensively investigated. Five volume concentrations of hybrid SiO₂:TiO₂ nanolubricants ranging from 0.01 % to 0.1 % volume concentration were investigated and compared against the base oil. In summary, 0.1 vol% hybrid SiO₂:TiO₂ in biodegradable base oil has demonstrated characteristics of potential advanced lubrication in MQL machining application</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110614"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143562729","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}