Pub Date : 2025-03-03DOI: 10.1016/j.triboint.2025.110620
Mengjun Chen , Zhi Xie , Ping Zhang , Wenlei Lian
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.
{"title":"Prediction of high temperature thermal contact conductance considering radiation effects based on fractal theory","authors":"Mengjun Chen , Zhi Xie , Ping Zhang , 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}
Pub Date : 2025-03-03DOI: 10.1016/j.triboint.2025.110621
Mohan Li , Shupei Liu , Xinfang Zhang , Lichao Wan , Ming Huang , Xiujie Jiang , Hui Xiong , Congshu Huang , Hong Gao , Weikang Zhao , Yuxin Zhang
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 %.
{"title":"Fabrication of multilayer graphene sheets modified diatom biosilica microcapsules for enhanced frictional and mechanical properties","authors":"Mohan Li , Shupei Liu , Xinfang Zhang , Lichao Wan , Ming Huang , Xiujie Jiang , Hui Xiong , Congshu Huang , Hong Gao , Weikang Zhao , 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}
Pub Date : 2025-02-27DOI: 10.1016/j.triboint.2025.110616
Haniff A. Rahman , Jaharah A. Ghani , Mohammad Rasidi Mohammad Rasani , Wan Mohd. Faizal Wan Mahmood , Saima Yaaqob , Mohd Syafiq Abd Aziz
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.
{"title":"Application of finite element analysis and computational fluid dynamics in machining AISI 4340 steel","authors":"Haniff A. Rahman , Jaharah A. Ghani , Mohammad Rasidi Mohammad Rasani , Wan Mohd. Faizal Wan Mahmood , Saima Yaaqob , 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}
Pub Date : 2025-02-27DOI: 10.1016/j.triboint.2025.110618
Junyu Chen , Pengfei Jin , Shujing Wang , Chenhui Zhu , Minheng Xu , ZhiQiang Jia , Xiao Liu , Chao Zhao , Cheng Zhang , Jinfeng Huang
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 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.
{"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 , Pengfei Jin , Shujing Wang , Chenhui Zhu , Minheng Xu , ZhiQiang Jia , Xiao Liu , Chao Zhao , Cheng Zhang , 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<sup>–7</sup> 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 M<sub>3</sub>C 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}
Pub Date : 2025-02-26DOI: 10.1016/j.triboint.2025.110614
Nurlisa Hamzan , Irnie Azlin Zakaria , Jaharah Abdul Ghani , Nurul Hayati Abdul Halim , W.H. Azmi , Zainoor Hailmee Solihin , Ahsana Aqilah Ahmad
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
{"title":"The SiO2:TiO2 hybrid biodegradable nanolubricant for sustainable machining: The stability, thermo-physical and tribology perspectives","authors":"Nurlisa Hamzan , Irnie Azlin Zakaria , Jaharah Abdul Ghani , Nurul Hayati Abdul Halim , W.H. Azmi , Zainoor Hailmee Solihin , 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}
Pub Date : 2025-02-26DOI: 10.1016/j.triboint.2025.110617
Xianghui Huang, Nan Kang, Qingzheng Wang, Mohamed El Mansori, Fabrice Guittonneau
The processing parameters of directed energy deposition (DED) H13 steel were first optimized by analyzing their effects on the molten pool. Then, the microstructure, hardness and wear behavior of DED H13 steels and their correlations were investigated in detail. The wear resistances at the matrix, bottom, and top of the DED H13 steel were experimentally determined. The dominant wear modes at the top and bottom are oxidative wear and delamination, and those at the matrix are abrasion. According to the microstructure and finite element analyses, the graded structure induced by intrinsic heat treatment during the DED process controls the microstructure evolution and hence the wear performance.
{"title":"Wear of directed energy deposited H13 steel as a function of its graded microstructure","authors":"Xianghui Huang, Nan Kang, Qingzheng Wang, Mohamed El Mansori, Fabrice Guittonneau","doi":"10.1016/j.triboint.2025.110617","DOIUrl":"10.1016/j.triboint.2025.110617","url":null,"abstract":"<div><div>The processing parameters of directed energy deposition (DED) H13 steel were first optimized by analyzing their effects on the molten pool. Then, the microstructure, hardness and wear behavior of DED H13 steels and their correlations were investigated in detail. The wear resistances at the matrix, bottom, and top of the DED H13 steel were experimentally determined. The dominant wear modes at the top and bottom are oxidative wear and delamination, and those at the matrix are abrasion. According to the microstructure and finite element analyses, the graded structure induced by intrinsic heat treatment during the DED process controls the microstructure evolution and hence the wear performance.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110617"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578399","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}
Pub Date : 2025-02-26DOI: 10.1016/j.triboint.2025.110615
Zilong Zhao, Yefei Li, Yuelang Li, Qiaoling Zheng
Two kinds of surface coatings containing Ti and TiN was prepared on the surface of ZrO2 ceramic, respectively. The wettability of the high-chromium cast iron/TiN coated zirconia system at temperatures ranging from 1420 to 1460°C was investigated using the sessile drop method. The contact angle exhibited significant temperature dependence, with a value of 52° at 1420°C and 13° at 1460°C. The ceramic particles (mass fraction of ZrO2 is 80 %, and Al2O3 is 20 %) were coated with Ti layer and TiN layer respectively, and two kinds of composite materials were prepared. Both types of composites exhibited tight metallurgical bonding between the metal and ceramic particles; the three-body abrasive wear test results indicated that the composite with TiN-coated ceramic particles had better wear resistance, approximately 1.2 times that of the composite with Ti-coated ceramic particles, and 6.8 times that of the pure high-Cr white cast iron, respectively.
{"title":"Effect of Ti and TiN inter-layers on the composite interfacial wettability and composite abrasive wear resistance","authors":"Zilong Zhao, Yefei Li, Yuelang Li, Qiaoling Zheng","doi":"10.1016/j.triboint.2025.110615","DOIUrl":"10.1016/j.triboint.2025.110615","url":null,"abstract":"<div><div>Two kinds of surface coatings containing Ti and TiN was prepared on the surface of ZrO<sub>2</sub> ceramic, respectively. The wettability of the high-chromium cast iron/TiN coated zirconia system at temperatures ranging from 1420 to 1460°C was investigated using the sessile drop method. The contact angle exhibited significant temperature dependence, with a value of 52° at 1420°C and 13° at 1460°C. The ceramic particles (mass fraction of ZrO<sub>2</sub> is 80 %, and Al<sub>2</sub>O<sub>3</sub> is 20 %) were coated with Ti layer and TiN layer respectively, and two kinds of composite materials were prepared. Both types of composites exhibited tight metallurgical bonding between the metal and ceramic particles; the three-body abrasive wear test results indicated that the composite with TiN-coated ceramic particles had better wear resistance, approximately 1.2 times that of the composite with Ti-coated ceramic particles, and 6.8 times that of the pure high-Cr white cast iron, respectively.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110615"},"PeriodicalIF":6.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519105","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}
Pub Date : 2025-02-25DOI: 10.1016/j.triboint.2025.110612
Tian Yang , Fei Cao , Yihui Jiang , Yanfang Wang , Pengtao Li , Wei Zhou , Xingde Zhang , Di Huang , Shuhua Liang
A novel 2TiB2/Cu-3B composite was fabricated via in-situ reactive casting technology, and its current-carrying tribological properties and wear mechanisms under sliding electrical contact conditions were systematically investigated. The synergistic effect between the anti-friction B phase and wear-resistant TiB2 particles significantly enhanced the wear resistance of the composites. Compared with 2TiB2/Cu composite, the coefficient of friction and wear rate of the 2TiB2/Cu-3B composite decreased by 63 % and 89 %, respectively. The dual-phase reinforcements ensured efficient current transmission while minimizing friction. The anti-friction layer regenerated during friction, while the uniform distribution of wear-resistant phases prevented overheating and delamination. Based on these synergistic mechanisms, 2TiB2/Cu-3B composite exhibits excellent current-carrying and wear resistance properties, providing valuable insights for designing current-carrying materials in electrical contact applications.
{"title":"Investigation of current-carrying tribological properties and mechanisms of in-situ 2TiB2/Cu-3B composite","authors":"Tian Yang , Fei Cao , Yihui Jiang , Yanfang Wang , Pengtao Li , Wei Zhou , Xingde Zhang , Di Huang , Shuhua Liang","doi":"10.1016/j.triboint.2025.110612","DOIUrl":"10.1016/j.triboint.2025.110612","url":null,"abstract":"<div><div>A novel 2TiB<sub>2</sub>/Cu-3B composite was fabricated via in-situ reactive casting technology, and its current-carrying tribological properties and wear mechanisms under sliding electrical contact conditions were systematically investigated. The synergistic effect between the anti-friction B phase and wear-resistant TiB<sub>2</sub> particles significantly enhanced the wear resistance of the composites. Compared with 2TiB<sub>2</sub>/Cu composite, the coefficient of friction and wear rate of the 2TiB<sub>2</sub>/Cu-3B composite decreased by 63 % and 89 %, respectively. The dual-phase reinforcements ensured efficient current transmission while minimizing friction. The anti-friction layer regenerated during friction, while the uniform distribution of wear-resistant phases prevented overheating and delamination. Based on these synergistic mechanisms, 2TiB<sub>2</sub>/Cu-3B composite exhibits excellent current-carrying and wear resistance properties, providing valuable insights for designing current-carrying materials in electrical contact applications.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110612"},"PeriodicalIF":6.1,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143526851","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}
Pub Date : 2025-02-24DOI: 10.1016/j.triboint.2025.110610
Zhiqiang Zhang , Xuhui Pei , Yin Du , Ziming Yu , Xinyu Yao , Wei Zhou , Haifeng Wang
The NiCr-Cr3C2/Ni@MoS2/Ti6Al4V self-lubricating and wear resistant composite coatings were successfully fabricated on the surface of Ti6Al4V via laser cladding. The effect of Ni@MoS2 addition on the microstructure of the composite coating was investigated through a combination of first-principles calculations and experimental characterization. Subsequently, the intrinsic relationship between the microstructural evolution of and the wear properties of composite coatings was elucidated. The results demonstrated that the composite coatings with varying Ni@MoS2 dosages consisted of β phases matrix, along with in-situ synthesized TiC, Ti2Ni, Ti2S, and TiS3 phases. First-principles calculations and experimental results indicated that the sufficient in-situ synthesis of a lubricating phase (TiS3) with two-dimensional layered structures and a strengthened phase (Ti2S) effectively inhibits adhesion wear and enhances surface bearing capacity. Consequently, the composite coating containing 20 wt% Ni@MoS2 exhibits reduced coefficient of friction (COF) and wear rates simultaneously.
{"title":"Effect of Ni@MoS2 addition on the microstructure and tribological performance of β-phase matrix composite coatings","authors":"Zhiqiang Zhang , Xuhui Pei , Yin Du , Ziming Yu , Xinyu Yao , Wei Zhou , Haifeng Wang","doi":"10.1016/j.triboint.2025.110610","DOIUrl":"10.1016/j.triboint.2025.110610","url":null,"abstract":"<div><div>The NiCr-Cr<sub>3</sub>C<sub>2</sub>/Ni@MoS<sub>2</sub>/Ti6Al4V self-lubricating and wear resistant composite coatings were successfully fabricated on the surface of Ti6Al4V via laser cladding. The effect of Ni@MoS<sub>2</sub> addition on the microstructure of the composite coating was investigated through a combination of first-principles calculations and experimental characterization. Subsequently, the intrinsic relationship between the microstructural evolution of and the wear properties of composite coatings was elucidated. The results demonstrated that the composite coatings with varying Ni@MoS<sub>2</sub> dosages consisted of β phases matrix, along with in-situ synthesized TiC, Ti<sub>2</sub>Ni, Ti<sub>2</sub>S, and TiS<sub>3</sub> phases. First-principles calculations and experimental results indicated that the sufficient in-situ synthesis of a lubricating phase (TiS<sub>3</sub>) with two-dimensional layered structures and a strengthened phase (Ti<sub>2</sub>S) effectively inhibits adhesion wear and enhances surface bearing capacity. Consequently, the composite coating containing 20 wt% Ni@MoS<sub>2</sub> exhibits reduced coefficient of friction (COF) and wear rates simultaneously.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110610"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143507518","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}
Pub Date : 2025-02-24DOI: 10.1016/j.triboint.2025.110611
Juan Camilo Vélez Molina , Jesús Antonio Carlos Cornelio , Robison Buitrago-Sierra , Juan Felipe Santa Marin , Lina Marcela Hoyos-Palacio , Karen Cacua , Juan Sebastián Rudas , Alejandro Toro , Roman Nevshupa
The effects of MoS2 and Multi-Wall Carbon Nanotube (MWCNT) additives onto thermal, mechanical and tribological properties of the vinyl ester polymer-matrix composites were systematically studied. Monocomponent and mixed additive compositions with concentrations ranging between 0 and 3 wt% showed complex behaviours. Tribological behaviour of steel-steel roiling-sliding simulating wheel-rail contact in presence of the composites significantly varied depending on the additives’ composition. Wear of the disks was mainly controlled by the composite capacity to form transfer film.
{"title":"Exploring synergistic and antagonistic interactions of MoS2 and multi-wall carbon nanotube additives in a composite top-of-rail friction modifier","authors":"Juan Camilo Vélez Molina , Jesús Antonio Carlos Cornelio , Robison Buitrago-Sierra , Juan Felipe Santa Marin , Lina Marcela Hoyos-Palacio , Karen Cacua , Juan Sebastián Rudas , Alejandro Toro , Roman Nevshupa","doi":"10.1016/j.triboint.2025.110611","DOIUrl":"10.1016/j.triboint.2025.110611","url":null,"abstract":"<div><div>The effects of MoS<sub>2</sub> and Multi-Wall Carbon Nanotube (MWCNT) additives onto thermal, mechanical and tribological properties of the vinyl ester polymer-matrix composites were systematically studied. Monocomponent and mixed additive compositions with concentrations ranging between 0 and 3 wt% showed complex behaviours. Tribological behaviour of steel-steel roiling-sliding simulating wheel-rail contact in presence of the composites significantly varied depending on the additives’ composition. Wear of the disks was mainly controlled by the composite capacity to form transfer film.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"207 ","pages":"Article 110611"},"PeriodicalIF":6.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534955","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号