Showing papers in "Tribology International in 2010"

TL;DR: In this paper, a review of the application of vegetable oils as potential metal working fluids is presented. But, most of the contributions are directed to develop and commercialise the cutting fluids based on vegetable oils.

TL;DR: In this article, the results of an experimental investigation on the wear mechanisms of uncoated tungsten carbide (WC) and coated tools (single layer (TiAlN) PVD, and triple-layer (TiCN/Al 2 O 3 /TiN) CVD) were presented.

TL;DR: In this paper, the role of nanoparticles in modifying the sliding wear behavior of short fiber reinforced polymers (SFRPs) was investigated, and it was found that the addition of a small percentage of rigid nanoparticles to SFRPs may significantly improve their wear resistance, especially under high pressure and velocity conditions.

TL;DR: In this article, the influence of addition of 20 nm diameter nickel nanoparticles on the tribological behavior of synthetic oil (polyalphaolefin, PAO6) was studied.

TL;DR: In this article, a combination of scanning electron microscopy with energy dispersive microanalysis, profilometry, and thermogravimetry allows successful analysis of friction surface and thermal stability of friction materials.

TL;DR: In this paper, a new mathematical model was developed to predict the abrasive wear rate of AA7075 aluminum alloy matrix composites reinforced with SiC particles, five factors, five levels, central composite, rotable design matrix was used to optimise the required number of experiments.

TL;DR: In this paper, the performance of both matrix alloy and developed composites was evaluated using pin on disk type machine over a load range of 20 to 100 N and sliding velocities of range 0.31 to 1.57 m/s.

TL;DR: In this paper, the effects of pressure and temperature dependence of a conventional lubricant's thermal properties on the behavior of heavily loaded thermal elastohydrodynamic lubrication (TEHL) contacts are investigated.

TL;DR: In this paper, the role of deformation, oxidation, and tribo-corrosion in the elevated-temperature tribology of metallic alloys was exemplified by three examples involving sliding wear, single-point abrasion, and repetitive impact plus slip.

TL;DR: In this paper, it is shown that not only material properties, but also the concentration of solid lubricant particles in the friction layers, determine conditions for friction force stabilization and smooth sliding behaviour.

TL;DR: In this paper, the effects of geometrical parameters on friction were mainly examined in mixed and elastohydrodynamic lubrication, and the results show that friction control can be achieved by fabricating the micro-grooved crosshatch pattern on a contact surface.

TL;DR: In this paper, an analytical approach to study the textured surfaces in hydrodynamic lubrication regime is presented. And the analytical relations for various texture profiles in both indented and projected forms are delivered.

TL;DR: In this paper, the effect of load range of 30-100 N and speed range of 3-12m/s on the wear and friction behavior of sand cast brake rotor made of A359-20-vol% SiC particle composites sliding against automobile friction material was investigated.

TL;DR: In this paper, an explicit finite element model was developed to investigate crack initiation and spall formation in machine elements subject to rolling contact fatigue, which utilizes continuum damage mechanics to capture the initiation and propagation of fatigue damage that leads to the formation of surface spall.

TL;DR: In this article, a polyester composite based on betelnut fibres was fabricated and its adhesive wear and frictional performance was studied using a block on disk machine at different applied loads and sliding distances at 2.8 m/s sliding velocity under dry/wet contact conditions.

TL;DR: In this article, the effect of fiber orientation on the mechanical and tribological properties of SCF (short carbon fibers)/PTFE (poly-tetra-fluor-ethylene)/graphite filled PEEK composites was studied.

TL;DR: In this article, the nano-multilayered AlTiN/Me x N PVD coatings are applied to carbide tooling for cutting hard to machine alloys such as Ni-based Inconel 718 superalloy and Ti-based TiAl6V4 alloy.

TL;DR: In situ Al-TiC composites were produced by using a reaction mixture of K 2 TiF 6 and graphite powder with molten metal, and the effect of ceramic particulate addition on the high temperature sliding wear resistance of the composites was studied.

TL;DR: In this article, the authors investigated the effect of erosion-corrosion on carbon steel in oil field production and mapped the results, making distinctions between additive and synergistic erosion.

TL;DR: In this article, a Nd:YAG pulsed laser was used to textured and filled composite composites with a regular-arranged dimple density of 7.1% to prolong the wear life of MoS2 film.

TL;DR: In this paper, a series of high carbon Fe-Cr-C hardfacing alloys were produced by gas tungsten arc welding (GTAW) and four different graphite additions in these alloy fillers were used to produce hypereutectic microstructures of Fe−Cr phase and (Cr,Fe)7C3 carbides on hard facing alloys.

TL;DR: In this article, the wear behavior of the composite was investigated to find out effects of operating variables and hardness in terms of the Taguchi approach, on a pin-on-disc machine and compared with the previous work on the composite produced by liquid metallurgy method.

TL;DR: In this article, the effect of surface-coated ultrafine powders (UFPs) of serpentine suspended in lubricants on the tribological behaviors of a mated 1045 steel contact was investigated.

TL;DR: In this paper, an advanced numerical model was established to simulate the mixed EHL problem of a metal-on-metal hip prosthesis with dimpled surface texturing, and the surface texture with simple cylindrical dimples was numerically simulated, under both steady state and walking conditions.

TL;DR: In this article, an aerostatic annular thrust bearing with small feed holes of less than 0.05mm diameter was treated and the static and the dynamic characteristics of this type of bearing were investigated numerically.

TL;DR: In this paper, the effect of surface texture on cylinder liners wear was investigated on a reciprocating tester and it was found that wear of two-process surfaces was lower than that of one process surfaces characterized by the same Sq parameter.

TL;DR: In this article, the rolling wear behavior of polyamide 6, polyoxymethylene and polyetheretherketone materials was investigated using different wear testing rigs, in which a steel ball rolls on the polymer plate surface in a rotational or linear motion.

TL;DR: In this article, the performance of glass and carbon fabric reinforced vinyl ester composites has been investigated and the results show that the coefficient of friction and wear rate increased with increase in load/sliding velocity and depends on type of fabric reinforcement and temperature at the interphase.

TL;DR: In this article, the effects of the size of material characteristic length and the coupling number on the static performance of noncircular bearing configurations were investigated, and the results showed that micropolar lubricants can produce significant enhancement in the dynamic performance characteristics.

TL;DR: In this paper, the dry-sliding tribological behavior of A206 aluminum alloy containing silica sand was investigated using a three pin-on-disk tribometer against an SAE 1045 steel counterface.