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Tribological analysis of tip-cantilever made of SU-8, talc and PFPE composite SU-8、滑石粉和PFPE复合材料尖端悬臂的摩擦学分析
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-04-02 DOI: 10.1080/17515831.2019.1675339
J. Katiyar, S. Sinha, T. Hirayama, Arvind Kumar
{"title":"Tribological analysis of tip-cantilever made of SU-8, talc and PFPE composite","authors":"J. Katiyar, S. Sinha, T. Hirayama, Arvind Kumar","doi":"10.1080/17515831.2019.1675339","DOIUrl":"https://doi.org/10.1080/17515831.2019.1675339","url":null,"abstract":"ABSTRACT SU-8 polymer with talc particle (30 wt-%) and liquid perfluoropolyether (PFPE) (30 wt-%) fillers was used as a composite to fabricate conical tip-cantilever device. The composite tip demonstrated lower coefficient of friction (∼0.22) when compared with a tip made of pure SU-8 (∼0.65). Fluorine was detected on the wear track and the tip surface, which resulted from the transfer of PFPE from the tip to the wear track. The counterface made of pure SU-8 remained smooth and unworn when slid against the composite tip even after 1000 cycles of sliding. This composite with improved tribological and mechanical properties can be used for fabricating small component devices such as for micro-electro-mechanical systems (MEMS).","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2019.1675339","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41520370","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: 3
Parametric study of aluminium alloy fouling in marine environment using RSM technique 基于RSM技术的海洋环境中铝合金结垢参数研究
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-04-02 DOI: 10.1080/17515831.2019.1690406
M. Lavanya, P. Rao, V. Ramachandra Murthy, S. Selvaraj
{"title":"Parametric study of aluminium alloy fouling in marine environment using RSM technique","authors":"M. Lavanya, P. Rao, V. Ramachandra Murthy, S. Selvaraj","doi":"10.1080/17515831.2019.1690406","DOIUrl":"https://doi.org/10.1080/17515831.2019.1690406","url":null,"abstract":"ABSTRACT Fouling is known to be a prominent industrial problem which is greatly affected by parameters like temperature, time and flowrate. The aim of this work was to simulate the fouling process in AA 6061 by developing a model through Minitab 16 and evaluate the models. Box Behnken design of Response surface methodology was applied for modelling and optimization of fouling propensity in artificial sea water. A response surface model was obtained and Analysis of Variance was performed to test the significance of the model. Fouling propensity was found in terms of weight gain. An experimental rig consisting of a recirculating loop mimicking the industrial conditions of fouling was used in the study. SEM analysis shows uneven deposits on the metal surface. Sharp, irregular deposits pressed deep into the metal was observed. The finding of this work would enable us to evaluate the individual and interactive effects of the parameters.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2019.1690406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45769122","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: 5
Measurement of metal–roll interface during metal rolling using normal and oblique ultrasonic reflection 用正向和斜向超声反射测量金属轧制过程中金属-辊界面
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-04-02 DOI: 10.1080/17515831.2019.1675338
G. Adeyemi, R. Dwyer-Joyce, J. T. Stephen, A. Adebayo
{"title":"Measurement of metal–roll interface during metal rolling using normal and oblique ultrasonic reflection","authors":"G. Adeyemi, R. Dwyer-Joyce, J. T. Stephen, A. Adebayo","doi":"10.1080/17515831.2019.1675338","DOIUrl":"https://doi.org/10.1080/17515831.2019.1675338","url":null,"abstract":"ABSTRACT It is important to monitor the roll bite interface during metal rolling to maintain the product size and homogeneity so as to minimize the material wastage. However, the harsh nature of cold rolling makes installation of sensors in metal roll for industrial applications difficult. The present study used a novel ultrasonic measurement technique whereby an ultrasonic signal went through an external sensor layout arrangement to study the metal-roll interface. The reflection coefficient obtained from the roll-strip interface at 0° to the roll surface (normal ultrasonic measurement technique) and 19° (oblique ultrasonic measurement technique) were modelled and experimentally investigated on an instrumented pilot metal rolling mill. Variances of 6.4% and 8.8% were obtained in the reflection coefficient of the techniques from experimental and modelling approaches, respectively. This showed that both techniques could be used to study the effect of the angle of incidence wave on the reflection coefficient.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2019.1675338","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41759148","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
Elasto-hydrodynamic analysis of reciprocating piston seals with micro-asperities on cylinder surface 气缸表面微凸体往复活塞密封的弹流力学分析
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-03-09 DOI: 10.1080/17515831.2020.1730128
Zhang Shouyuan
{"title":"Elasto-hydrodynamic analysis of reciprocating piston seals with micro-asperities on cylinder surface","authors":"Zhang Shouyuan","doi":"10.1080/17515831.2020.1730128","DOIUrl":"https://doi.org/10.1080/17515831.2020.1730128","url":null,"abstract":"ABSTRACT The reciprocating piston seals are crucial parts in the hydraulic system, which are widely used in aerospace and military industry. A direct fluid–structure coupling method with high efficiency is proposed for solving the transient elaso-hydrodynamic-lubrication problem in the hydropneumatic suspension reciprocating piston seal system. A detailed three-dimensional fluid–structure coupling model is built using finite element discretization. Material tests are carried out to obtain the parameters of the third-order Ogden constitutive model of the rubber O-ring. The sealing performance and friction force of the sealing system are analysed for different piston speed. The critical speed from mixed lubrication to full-film lubrication is obtained. Three different micro-asperity geometries on cylinder surface are researched for their influence on piston sealing and lubrication performance.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1730128","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46519716","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: 1
A critical review of the assessment of medical gloves 对医用手套评估的批判性审查
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-23 DOI: 10.1080/17515831.2020.1730619
D. Preece, R. Lewis, M. Carré
{"title":"A critical review of the assessment of medical gloves","authors":"D. Preece, R. Lewis, M. Carré","doi":"10.1080/17515831.2020.1730619","DOIUrl":"https://doi.org/10.1080/17515831.2020.1730619","url":null,"abstract":"ABSTRACT Medical protective gloves must be assessed to adequate standards before becoming available for commercial use. Strength, integrity and contamination are assessed at the manufacturing stage. However, concerns are raised over the standardisation of the testing; should more be done to assess how gloves affect the performance? Over the years, studies have demonstrated how the design of gloves has reduced tactile sensitivity in medical staff, ultimately leading to poor patient care through missed information. Studies have also demonstrated that a loss of grip control and dexterity through glove use are detrimental to medical tasks. However, it remains relatively unexplored as to how wearing medical gloves affects the users and the patients. Gaps in research have been identified around the frictional and grip properties of gloves. Linking the key performance parameters to the manufacturing processes, which affect material properties, will provide more insight into the behaviour of medical gloves and how to properly assess materials.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1730619","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42135880","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
A numerical-analytical approach to determining the real contact area of rough surface contact 确定粗糙表面接触实际接触面积的数值解析方法
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-21 DOI: 10.1080/17515831.2020.1720382
Can Wang, D. Schipper
{"title":"A numerical-analytical approach to determining the real contact area of rough surface contact","authors":"Can Wang, D. Schipper","doi":"10.1080/17515831.2020.1720382","DOIUrl":"https://doi.org/10.1080/17515831.2020.1720382","url":null,"abstract":"ABSTRACT The objective of this study is to improve the accuracy of the real contact area calculated by the semi-analytical method (SAM). Two types of surface pairs are investigated: an analytically generated sinusoidal wavy surface against a rigid flat, and a pair of real rough surfaces. The results suggest that the real contact area calculated by the SAM is extremely sensitive to the resolution of input, i.e. the grid size. The SAM results of the real contact areas show poor convergence, especially in the case of the real rough surfaces. The main reason for this difference is the ‘over-covering’ effect when SAM calculates the real contact area. An exponential extrapolation technique is proposed to predict the real contact area values when further refinement of the grid resolution is unfeasible.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1720382","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44479714","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: 4
Review and analysis of solids friction factor correlations in fluidized dense phase conveying 流化密相输送中固体摩擦系数相关性的综述与分析
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-20 DOI: 10.1080/17515831.2020.1730127
J. Shijo, Niranjana Behera
{"title":"Review and analysis of solids friction factor correlations in fluidized dense phase conveying","authors":"J. Shijo, Niranjana Behera","doi":"10.1080/17515831.2020.1730127","DOIUrl":"https://doi.org/10.1080/17515831.2020.1730127","url":null,"abstract":"ABSTRACT Few researchers have presented solids friction factor correlations for the fluidized dense phase conveying of fine particles or powders. Pressure drop for conveying can be predicted using these correlations. These correlations predict the pressure drop with minimum error margin for a definite pipeline configuration or for some specific types of conveying materials. Few researchers have applied their correlations for different pipeline configurations (of different pipeline lengths or diameters) or different conveying materials to predict the pressure drop. In this paper, different solids friction factor correlations for the fluidized dense phase conveying have been considered which are available in the literature and the behaviour of these correlations have been studied under length scale-up or diameter scale-up conditions. It has been observed that only few correlations exhibit natural pressure drop variation with change in pipeline length or pipeline diameter.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1730127","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41825633","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: 3
Improved modelling of trains braking under low adhesion conditions 改进了低附着条件下列车制动的建模
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-05 DOI: 10.1080/17515831.2020.1720379
H. Alturbeh, R. Lewis, K. Six, G. Trummer, J. Stow
{"title":"Improved modelling of trains braking under low adhesion conditions","authors":"H. Alturbeh, R. Lewis, K. Six, G. Trummer, J. Stow","doi":"10.1080/17515831.2020.1720379","DOIUrl":"https://doi.org/10.1080/17515831.2020.1720379","url":null,"abstract":"ABSTRACT Predicting the behaviour of trains when braking under low adhesion conditions presents considerable challenges. This paper describes an approach to the problem using a model of the full train braking system known as LABRADOR (Low Adhesion Braking Dynamic Optimization for Rolling Stock) and an improved method for representing the creep force–creepage behaviour when low adhesion is presently known as WILAC (Water Induced Low Adhesion Creep Force Model). The development of these models and their integration are summarized and a number of test cases are presented to demonstrate the improvements which can be gained from this approach. A number of suggestions are made for future enhancements with the aim of providing brake engineers and systems integrators with reliable simulation tools for optimizing train braking performance when low adhesion is present.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1720379","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49137991","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: 1
Comparative study on tribology and microhardness of laser synthesized Ti-Al2O3/Zn coatings on Ti-6Al-4V alloy Ti-6Al-4V合金表面激光合成Ti-Al2O3/Zn涂层摩擦学和显微硬度的比较研究
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-04 DOI: 10.1080/17515831.2020.1720380
A. Mthisi, A. Popoola
{"title":"Comparative study on tribology and microhardness of laser synthesized Ti-Al2O3/Zn coatings on Ti-6Al-4V alloy","authors":"A. Mthisi, A. Popoola","doi":"10.1080/17515831.2020.1720380","DOIUrl":"https://doi.org/10.1080/17515831.2020.1720380","url":null,"abstract":"ABSTRACT The study of laser cladding of 90Ti-10Al2O3, 90Ti-8Al2O3-2Zn and 90Ti-4Al2O3-6Zn coatings onto Ti-6Al-4V alloy, with intention to produce defect-less, high microhardness and wear resistant coating was carried out. The coatings were deposited onto Ti-6Al-4V alloy at 900 W laser power and 0.6 m/min laser scan speed. Microstructures and phase constituents of the developed coatings were investigated by using a scanning electron microscope (SEM) and X-ray diffractometer correspondingly. Vickers microhardness tester and pin-on-disk tribometer were employed to characterize microhardness and wear behaviour of the Ti-Al2O3/Zn coatings respectively. SEM was also used to examine the worn track. It was observed that 90Ti-10Al2O3 coating yielded optimal microhardness along with maximal wear resistance in comparison to the other coatings and Ti-6Al-4V alloy. It has been established that laser cladding of Ti-Al2O3 coating with Zn contents on Ti-6Al-4V alloy alleviates the formation of cracks, however, microhardness and wear properties are negatively affected.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1720380","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48860302","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: 3
Compliant-poroelastic lubrication in cartilage-on-cartilage line contacts 软骨与软骨线接触的顺应性多孔弹性润滑
IF 1.3
Tribology - Materials, Surfaces & Interfaces Pub Date : 2020-02-03 DOI: 10.1080/17515831.2020.1720381
G. de Boer, N. Raske, S. Soltanahmadi, M. Bryant, R. Hewson
{"title":"Compliant-poroelastic lubrication in cartilage-on-cartilage line contacts","authors":"G. de Boer, N. Raske, S. Soltanahmadi, M. Bryant, R. Hewson","doi":"10.1080/17515831.2020.1720381","DOIUrl":"https://doi.org/10.1080/17515831.2020.1720381","url":null,"abstract":"ABSTRACT The mechanisms of friction in natural joints are still relatively unknown and attempts at modelling cartilage-cartilage interfaces are rare despite the huge promise they offer in understanding bio-friction. This article derives a model combining finite strain, porous and thin-film flow theories to describe the lubrication of cartilage-on-cartilage line contacts. The material is modelled as compliant and poroelastic in which the micro-scale fibrous structure is interstitially filled with synovial fluid. This fluid flows over the interface between the bodies and is coupled to pressure generated by relative motion in the thin-film region formed under load. A Stribeck analysis demonstrated that this type of contact is determinable to conventional elastic lubrication but that the friction performance is improved by this interfacial flow. Moreover, the inclusion of periodic flow conditions when contact is onset is a specific novelty which elucidates new observations in the lubrication mechanisms pertaining to natural joints.","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2020-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2020.1720381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42658918","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: 4
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