Advances in Tribology最新文献_第10页

A Correlative Defect Analyzer Combining Glide Test with Atomic Force Microscope 滑动试验与原子力显微镜相结合的相关缺陷分析仪

IF 2.6

Advances in Tribology Pub Date : 2013-03-19 DOI: 10.1155/2013/657363

Jizhong He

引用次数: 1

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film 了解环境对类金刚石纳米复合材料薄膜摩擦磨损影响的线索

IF 2.6

Advances in Tribology Pub Date : 2013-03-04 DOI: 10.1155/2013/352387

Sukhendu Jana, Sayan Das, U. Gangopadhyay, A. Mondal, P. Ghosh

{"title":"A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film","authors":"Sukhendu Jana, Sayan Das, U. Gangopadhyay, A. Mondal, P. Ghosh","doi":"10.1155/2013/352387","DOIUrl":"https://doi.org/10.1155/2013/352387","url":null,"abstract":"The wear and friction of diamond-like nanocomposite (DLN) film have been investigated in air with different relative humidity (RH), under deionized (DI) water and saline solution. The structure of the film has been characterized by Fourier transform infrared (FTIR), Raman spectroscopy, and scanning electron microscope (SEM). The result shows two interpenetrating network structure: a–C:H and a–Si:O, and they are interpenetrated by Si–C bonding. The tribological performance has been measured using ball-on-disc tribometer with tungsten carbide ball as counterbody at 10 N normal load. Results show that with increasing relative humidity (RH) from 35% to 80%, the coefficient of friction (COF) increases gradually from 0.005 to 0.074, whereas with increasing RH the wear factor decreases from mm3/Nm and attains a minimum value of mm3/Nm at 50% RH. With further increase of RH the wear factor increases again. Moreover, in DI water and especially in saline solution, both the COF and wear factor have been found to be significantly low. A clue has been interpreted to understand environmental dependency, considering the effect of surface dangling bonds, charge transfer, and chemical interactions.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/352387","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64409108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Contact Thermal Analysis and Wear Simulation of a Brake Block 制动块接触热分析及磨损仿真

IF 2.6

Advances in Tribology Pub Date : 2013-02-27 DOI: 10.1155/2013/878274

Nandor Bekesi, K. Varadi

引用次数: 7

Surface Layer States of Worn Uncoated and TiN-Coated WC/Co-Cemented Carbide Cutting Tools after Dry Plain Turning of Carbon Steel 碳钢干素车削后未涂层和镀锡涂层WC/ co硬质合金刀具磨损的表层状态

IF 2.6

Advances in Tribology Pub Date : 2013-02-24 DOI: 10.1155/2013/519686

J. Kümmel, K. Poser, F. Zanger, J. Michna, V. Schulze

{"title":"Surface Layer States of Worn Uncoated and TiN-Coated WC/Co-Cemented Carbide Cutting Tools after Dry Plain Turning of Carbon Steel","authors":"J. Kümmel, K. Poser, F. Zanger, J. Michna, V. Schulze","doi":"10.1155/2013/519686","DOIUrl":"https://doi.org/10.1155/2013/519686","url":null,"abstract":"Analyzing wear mechanisms and developments of surface layers in WC/Co-cemented carbide cutting inserts is of great importance for metal-cutting manufacturing. By knowing relevant processes within the surface layers of cutting tools during machining the choice of machining parameters can be influenced to get less wear and high tool life of the cutting tool. Tool wear obviously influences tool life and surface integrity of the workpiece (residual stresses, surface quality, work hardening, etc.), so the choice of optimised process parameters is of great relevance. Vapour-deposited coatings on WC/Co-cemented carbide cutting inserts are known to improve machining performance and tool life, but the mechanisms behind these improvements are not fully understood. The interaction between commercial TiN-coated and uncoated WC/Co-cemented carbide cutting inserts and a normalised SAE 1045 steel workpiece was investigated during a dry plain turning operation with constant material removal under varied machining parameters. Tool wear was assessed by light-optical microscopy, scanning electron microscopy (SEM), and EDX analysis. The state of surface layer was investigated by metallographic sectioning. Microstructural changes and material transfer due to tribological processes in the cutting zone were examined by SEM and EDX analyses.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/519686","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64430333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Journal Bearings Lubrication Aspect Analysis Using Non-Newtonian Fluids 使用非牛顿流体的滑动轴承润滑方面分析

IF 2.6

Advances in Tribology Pub Date : 2013-02-04 DOI: 10.1155/2013/212568

A. Nessil, S. Larbi, H. Belhaneche, M. Malki

引用次数: 23

Atomistic Frictional Properties of the C(100)2x1-H Surface C(100)2x1-H表面的原子摩擦性质

IF 2.6

Advances in Tribology Pub Date : 2013-02-03 DOI: 10.1155/2013/850473

P. Jones, Huan Tang, Y. Hsia, Xiaoping Yan, J. Kiely, Junwei Huang, C. Platt, Xiaoding Ma, M. Stirniman, Lang Dinh

{"title":"Atomistic Frictional Properties of the C(100)2x1-H Surface","authors":"P. Jones, Huan Tang, Y. Hsia, Xiaoping Yan, J. Kiely, Junwei Huang, C. Platt, Xiaoding Ma, M. Stirniman, Lang Dinh","doi":"10.1155/2013/850473","DOIUrl":"https://doi.org/10.1155/2013/850473","url":null,"abstract":"Density functional theory- (DFT-) based ab initio calculations were used to investigate the surface-to-surface interaction and frictional behavior of two hydrogenated C(100) dimer surfaces. A monolayer of hydrogen atoms was applied to the fully relaxed C(100)2x1 surface having rows of C=C dimers with a bond length of 1.39 A. The obtained C(100)2x1-H surfaces (C–H bond length 1.15 A) were placed in a large vacuum space and translated toward each other. A cohesive state at a surface separation of 4.32 A that is stabilized by approximately 0.42 eV was observed. An increase in the charge separation in the surface dimer was calculated at this separation having a 0.04 e transfer from the hydrogen atom to the carbon atom. The Mayer bond orders were calculated for the C–C and C–H bonds and were found to be 0.962 and 0.947, respectively. σ C–H bonds did not change substantially from the fully separated state. A significant decrease in the electron density difference between the hydrogen atoms on opposite surfaces was seen and assigned to the effects of Pauli repulsion. The surfaces were translated relative to each other in the (100) plane, and the friction force was obtained as a function of slab spacing, which yielded a 0.157 coefficient of friction.","PeriodicalId":44668,"journal":{"name":"Advances in Tribology","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2013-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/850473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64286483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Experimental Determination of Cutting Power for Turning and Material Removal Rate for Drilling of AA 6061-T6 Using Vegetable Oils as Cutting Fluid 植物油切削液对AA 6061-T6车削切削功率和钻孔材料去除率的实验测定

IF 2.6

Advances in Tribology Pub Date : 2013-01-21 DOI: 10.1155/2013/362931

Y. Shashidhara, S. R. Jayaram

引用次数: 27

Dry Sliding Friction and Wear Studies of Fly Ash Reinforced AA-6351 Metal Matrix Composites 粉煤灰增强AA-6351金属基复合材料干滑动摩擦磨损研究

IF 2.6

Advances in Tribology Pub Date : 2013-01-21 DOI: 10.1155/2013/365602

M. Uthayakumar, S. T. Kumaran, S. Aravindan

引用次数: 60

Lubrication Regimes in High-Performance Polymer Spur Gears 高性能聚合物直齿齿轮的润滑机制