Industrial Tribology

Mang, Theo; Bobzin, Kirsten; Bartels, Thorsten

doi:10.1002/9783527632572

Cited by 49 publications

(19 citation statements)

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“…With the aim of investigating the influence of lubricants and DLC coatings on frictional losses under rolling-sliding motion in line contact, tribological model tests were performed in a twin-disc test-rig at FZG covering the entire friction regime from boundary and mixed friction to fluid friction (elasto-hydrodynamic lubrication, EHL) as occurring in real tooth contacts [50]. Coefficient of Friction (CoF) was measured using uncoated steel discs and five different lubricant types as given in Table 2 as well as DLC coated discs and the mineral oil MIN100.…”

Section: Twin-disc Test-rigmentioning

confidence: 99%

“…Kinematics of highly loaded gears is dominated by a complex superposition of sliding and rolling motion in line contact [49,50]. Tribological tests under continuous sliding motion in point contact using a pin-on-disc tribometer provided for the possibility to investigate the tribological performance only considering the sliding friction share in a simplified environment.…”

Section: Pin-on-disc Tribometermentioning

confidence: 99%

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Influence of wetting and thermophysical properties of diamond-like carbon coatings on the frictional behavior in automobile gearboxes under elasto-hydrodynamic lubrication

Bobzin

Brögelmann

Stahl

et al. 2015

Surface and Coatings Technology

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Section: Twin-disc Test-rigmentioning

confidence: 99%

Section: Pin-on-disc Tribometermentioning

confidence: 99%

Influence of wetting and thermophysical properties of diamond-like carbon coatings on the frictional behavior in automobile gearboxes under elasto-hydrodynamic lubrication

Bobzin

Brögelmann

Stahl

et al. 2015

Surface and Coatings Technology

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“…Therefore, surface structuring is relevant for process engineering and the development of machining processes [1][2][3]. Honing processes, e.g., microfinishing, are often used to produce technical surfaces focusing their tribological functions [3][4][5][6][7]. As a last step in the process chain, microfinishing is mainly used to generate surfaces, which improves the tribological contact situation without changing deviations of the shape or geometry [8].…”

Section: Introductionmentioning

confidence: 99%

“…They are built out of bonding material and abrasive grains. When compared to grinding tools the grain types diamond, corundum, and silicium-oxide are the same, whereas the grain size is typically smaller [3,4,6]. Usually, microfinishing films have a maximum grain size of d K = 125 µm, whereas the minimum grain size is d K ≤ 1 µm [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Structuring Surfaces by Microfinishing Using Defined Abrasive Belts

et al. 2017

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Microfinishing, also known as superfinishing or short-stroke honing, is a commonly used process for generating technical surfaces focusing on tribological applications. Due to microfinishing processes high surface qualities are manufacturable regarding the surface roughness and bearing area ratio. While the required characteristics for tribological loaded workpieces are changing with their rising significance, the surface structuring is becoming more and more important. With the use of defined abrasive belts, the possibilities of surface structuring by microfinishing are enhanced. The possibilities and challenges concerning surface structuring by microfinishing applying defined abrasive belts are described in this research study. Therefore, a geometrical-kinematic simulation is used to predict the theoretical structures generated by microfinishing, while in experimental investigations the influences of kinematic parameters and a multi-stage process sequence are considered.

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“…Additives modify metal friction surfaces by creating friction adsorption films (surfactants) or by chemical interaction with the metal (reactive substances). Metal complex compound (for example, zinc bis-dialkyldithiophosphate) are widely used In the world in order to improve the tribological performance of lubricants [7,8].…”

Section: Introductionmentioning

confidence: 99%

Improvement of Performance Characteristics of Ethanol Motor Fuels Through Use of Additives Based on Nanoscale Carbon Clusters

Haidai

Pilyavskiy

Shelud’ko

et al. 2016

EUREKA: Physics and Engineering

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A new way to overcome the disadvantages of ethanol motor fuels by introducing of multifunctional additives based on carbon nanoscale clusters in their composition is given. It is shown that the modified nanoclusters contribute to the formation of supramolecular structure of ethanol fuels in the form of solvent domains around the nanoparticles. Orientation local ordering of these supramolecular structures changes such physicochemical properties of oxygenate fuels as dielectric constant and the load-bearing capacity of the liquid phase in the dynamic mechanical load. The influence of synthetic carbon spheroidal clusters on the corrosive properties of ethanol fuels is studied. It is shown that by using small amounts (0.01 % wt.) of nanocluster-based additives in the composition of mixed fuel E–85 it is unnecessary to introduce the anticorrosion additives. The effect of nanocarbon clusters on the tribological properties of ethanol motor fuels is studied. A decrease in damage of the metal surface for friction pairs of the fuel pumps is observed with the introduction of carboxylic nanoclusters into the ethanol fuel. This indicates the occurrence of friction processes in the hydrodynamic regime due to the increased bearing capacity of the fuel. It is shown that the introduction of additives based on carbon nanoscale clusters into the ethanol fuel allows to create a high-performance motor fuel with improved performance.

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Industrial Tribology

Cited by 49 publications

References 0 publications

Influence of wetting and thermophysical properties of diamond-like carbon coatings on the frictional behavior in automobile gearboxes under elasto-hydrodynamic lubrication

Influence of wetting and thermophysical properties of diamond-like carbon coatings on the frictional behavior in automobile gearboxes under elasto-hydrodynamic lubrication

Structuring Surfaces by Microfinishing Using Defined Abrasive Belts

Improvement of Performance Characteristics of Ethanol Motor Fuels Through Use of Additives Based on Nanoscale Carbon Clusters

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