Surface Texturing: Evolution of the Coefficient of Friction with Surface Wear for Advanced Surface Textured Composites (Adv. Mater. Interfaces 6/2017)

Starvation occurs when the lubricated contact uses up the lubricant supply, and there is not enough lubricant in the contact to support the separation between solid surfaces. On the other hand, the use of textures on surfaces in lubricated contacts can result in a higher film thickness. In addition, a modification of the surface’s geometrical parameters can benefit the tribological behaviour of the contacts. In this article, for parallel sliding surfaces in starved lubricated conditions, the effect of surface texturing upon the coefficient of friction is investigated. It is shown that surface texturing may improve film formation under the conditions of starvation, and as a result, the frictional behaviour of the parallel sliding contact. Furthermore, the effect of starved lubrication on textured surfaces with different patterns in the presence of a cavitation effect, and its influence on frictional behaviour, is investigated. It is shown that surface texturing can reduce the coefficient of friction, and that under certain conditions, the texturing parameter could have an influence on the frictional behaviour of parallel sliding contacts in the starved lubrication regime.

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Improving Tribological Behavior of ICE’s Cylinder Surface by Laser Surface Texturing (LST)

Journal of Nepal Physical Society ◽

10.3126/jnphyssoc.v7i2.38582 ◽

2021 ◽

Vol 7 (2) ◽

pp. 9-16

Author(s):

K. Tripathi ◽

S. W. Lee

Keyword(s):

Coefficient Of Friction ◽

Combustion Engine ◽

Wear Behavior ◽

Surface Texturing ◽

Laser Surface ◽

Laser Surface Texturing ◽

Cylinder Surface ◽

Viscous Oil ◽

The Coefficient Of Friction ◽

Grey Cast

This study investigates the effect of laser surface texturing (LST) on the friction and wear behavior of grey cast iron (GCI) of internal combustion engine (ICE) cylinder in lubricated conditions. The dimples having diameter of about (58-60) μm and depth of about 10 μm were created on the surface with various dimple densities ranging from 5 to 50%. A ball-on-disc friction tests were performed for all the specimens under 5W30 and 15W50 oils with different viscosities. The tests were carried out at a load of 5N and speed of 5cm/s. The coefficient of friction of the dimpled specimen was reduced significantly by approximately 32% as compared to the polished speciemen. Specimen with 15% dimples exhibits the lowest coefficient of friction of all the dimpled specimens in both low and high viscous oils. The high viscous oil found to be more efficient regarding coefficeint of friction compared to the low viscous oil. The degree of wear of the specimens was analyzed on the basis of wear scar developed on the counter surface as it supplements the wear during the friction tests. The resistance to wear of the sliding specimens was found to be increased in high viscous oil compared to that in low viscous oil.

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The Influence of Surface Texturing on the Frictional Behaviour of Parallel Sliding Lubricated Surfaces under Conditions of Mixed Lubrication

Lubricants ◽

10.3390/lubricants6040091 ◽

2018 ◽

Vol 6 (4) ◽

pp. 91 ◽

Cited By ~ 2

Author(s):

Dariush Bijani ◽

Elena L. Deladi ◽

Aydar Akchurin ◽

Matthijn B. de Rooij ◽

Dirk J. Schipper

Keyword(s):

Coefficient Of Friction ◽

Film Formation ◽

Surface Texturing ◽

Industrial Applications ◽

Mixed Lubrication ◽

Tribological Behaviour ◽

Surface Geometry ◽

Lubricated Contacts ◽

The Coefficient Of Friction ◽

Frictional Behaviour

In many industrial applications, a modification of the surface geometry can enhance the tribological behaviour of lubricated sliding contacts. In this paper, the effect of surface texturing on the coefficient of friction in parallel sliding lubricated surfaces is investigated. It is shown that surface texturing can improve film formation and, as a result, the load-carrying capacity as well as a reduction in the coefficient of friction. With the numerical model developed, and by considering cavitation, the effects of shape, depth, size, and the textured area fraction on the frictional behaviour of parallel sliding lubricated contacts under conditions of mixed lubrication is studied. In this article it is shown that the surface texturing can have a beneficial effect, in order to decrease friction.

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Effects of surface texturing and kind of lubricant on the coefficient of friction at ambient and elevated temperatures

Tribology International ◽

10.1016/j.triboint.2017.09.003 ◽

2018 ◽

Vol 117 ◽

pp. 174-179 ◽

Cited By ~ 14

Author(s):

Slawomir Wos ◽

Waldemar Koszela ◽

Pawel Pawlus ◽

Jolanta Drabik ◽

Elzbieta Rogos

Keyword(s):

Coefficient Of Friction ◽

Elevated Temperatures ◽

Surface Texturing ◽

The Coefficient Of Friction

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Analysis of the Influence of Adhesion and Surface Texturing of the Counterbody on the Coefficient of Friction with Rubber

Trenie i Iznos ◽

10.32864/0202-4977-2021-42-4-437-449 ◽

2021 ◽

Vol 42 (4) ◽

pp. 437-449

Author(s):

A.V. Morozov ◽

◽

Yu.Yu. Makhovskaya ◽

K.S. Kravchuk ◽

◽

...

Keyword(s):

Coefficient Of Friction ◽

Surface Texturing ◽

The Coefficient Of Friction

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Using Textured-DLC Coating to Improve the Wear Resistance of Stainless Steel Plate Under Dust-Containing Lubricant Condition

International Journal of Automation Technology ◽

10.20965/ijat.2020.p0099 ◽

2020 ◽

Vol 14 (1) ◽

pp. 99-108

Author(s):

Takuya Osawa ◽

Makoto Matsuo ◽

Yuya Eyama ◽

Hiroshi Yamamoto ◽

Shinji Tanaka ◽

...

Keyword(s):

Stainless Steel ◽

Wear Resistance ◽

Coefficient Of Friction ◽

Steel Substrate ◽

Surface Texturing ◽

Groove Depth ◽

Test Sample ◽

Tribological Characteristics ◽

Dlc Film ◽

The Coefficient Of Friction

Sliding mechanical parts working under heavy loads and at high speeds in harsh environments are often subjected to sand and dust, leading to abnormal wear and seizing. Although sliding surfaces can be hardened and textured, there is a need for even higher wear and seizure resistance. We therefore did this study to confirm the trapping effect of surface texturing on dust by finding a way to visualize the dust. As a result, we confirmed that the dust became trapped in the grooves of the texture during the sliding. In addition, to produce a sliding surface having both seizure and wear resistance, we produced a surface combining a diamond-like carbon (DLC) film and surface texturing, and we evaluated its tribological characteristics. In dusty conditions, the specific wear rate was about 1/20 on surfaces where DLC film and the surface texturing were used in conjunction, and its wear resistance was higher than that of a non-treated stainless steel substrate. On the other hand, a rise in the coefficient of friction due to a rise in contact stress on the corners of the texturing grooves was confirmed. Therefore, when the tribological characteristics were evaluated by changing the radii of the groove corners and the parameters of the groove depth, the coefficient of friction was the lowest, decreasing about 50% for the test sample with a corner radius of 7.1 μm.

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Light conveyor belts. Determination of the coefficient of friction

10.3403/30106633u ◽

2015 ◽

Keyword(s):

Coefficient Of Friction ◽

The Coefficient Of Friction ◽

Conveyor Belts

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Experimental Investigation of aluminum doping crumb rubber/epoxy composite in reciprocating motion

Journal of Communications Technology Electronics and Computer Science ◽

10.22385/jctecs.v3i0.12 ◽

2015 ◽

Vol 3 ◽

pp. 1

Author(s):

Goutam Chandra Karar ◽

Nipu Modak

Keyword(s):

Experimental Investigation ◽

Coefficient Of Friction ◽

Epoxy Composite ◽

Normal Load ◽

Crumb Rubber ◽

The Other ◽

Reciprocating Motion ◽

Molding Process ◽

Friction Tester ◽

The Coefficient Of Friction

The experimental investigation of reciprocating motion between the aluminum doped crumb rubber /epoxy composite and the steel ball has been carried out under Reciprocating Friction Tester, TR-282 to study the wear and coefficient of frictions using different normal loads (0.4Kg, 0.7Kgand1Kg), differentfrequencies (10Hz, 25Hz and 40Hz).The wear is a function of normal load, reciprocating frequency, reciprocating duration and the composition of the material. The percentage of aluminum presents in the composite changesbut the other components remain the same.The four types of composites are fabricated by compression molding process having 0%, 10%, 20% and 30% Al. The effect of different parameters such as normal load, reciprocating frequency and percentage of aluminum has been studied. It is observed that the wear and coefficient of friction is influenced by the parameters. The tendency of wear goes on decreasing with the increase of normal load and it is minimum for a composite having 10%aluminum at a normal load of 0.7Kg and then goes on increasing at higher loads for all types of composite due to the adhesive nature of the composite. The coefficient of friction goes on decreasing with increasing normal loads due to the formation of thin film as an effect of heat generation with normal load.

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