Results 11 to 20 of about 1,275,740 (271)
Improved micro-pitting performance of power transmission gears
, 2006 Gears are one of the most complicated applications of tribology with combined rolling and sliding action on the gear teeth.There is the tendency to increase the amount of power to be transmitted through the gears with the simultaneous need to decrease the size of gears.Also environmental aspects need to be taken into account in modern gear design.The ...
Ronkainen, Helena +3 more
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Predicting Micro-Pitting Occurrence in Wind Turbine Gearbox Roller Bearings
STLE/ASME 2010 International Joint Tribology Conference, 2010 The standard rolling contact fatigue life calculations currently in use by the rolling bearing industry is based on the first occurrence of subsurface-initiated spalling of a raceway or roller surface. However, wind turbine gearbox roller bearings have been suffering from another damage mode, which manifests itself as micro-pitting.
Tedric A. Harris, Michael N. Kotzalas
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Inhibition of pitting on carbon steel [PDF]
, 2011 Carbon dioxide and hydrogen sulphide pitting related failures are a prime concern in oil and gas internal pipelines. Often, these types of failure have a great impact on safety and environmental matters and can cause severe financial consequences to the
Ismail, Ismarullizam Mohd
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Micro-pitting and wear characterization for crankshaft roller bearing application
, 2018 Efficiency of internal combustion engines (ICEs) is far from optimal. Due to the continuously increasing demands on CO2 regulations, automobile industries are forced to improve such efficiency. A crankshaft roller bearing (CSRB) can lead to significant improvements in engine efficiency.
Vrček, Aleks
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Tribology Letters, 2021 Abstract The drive to reduce fuel consumption in transportation has encouraged the emergence of low viscosity lubricants to reduce viscous losses in the engine, drivetrain, and other components. However, viscosity reduction increases the risk of surface damage, thus motivating the development of new anti-wear (AW) additives.
I. Lahouij +7 more
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Friction Characteristic Study on Flat Surface Embedded With Micro Pit [PDF]
Evergreen, 2021 Mechanical systems are always deal with wear and friction as the liability. The basic principle of the mechanical system is the surface interaction between surfaces which have a frictional force resulting in fatigue and damage to the mechanical components. Lubricant is used to minimize friction in order to solve the problem.
Y., Aiman +3 more
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Investigations on the Micro-Pitting and Wear Behavior of Nitrided Internal Gears [PDF]
IOP Conference Series: Materials Science and Engineering, 2021 Abstract Nitriding processes can significantly increase the load carrying capacity of gears, compared e.g. to through hardened gears. Nitrided gears are generally characterized by a thin and hard compound layer on the surface and an adjacent diffusion layer that extends deeper into the material.
M Geitner +4 more
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Materials & Design, 2023 The stress corrosion of pipeline steel was promoted by sulfate-reducing bacteria (SRB). However, the mechanism of SRB promoting stress corrosion is not clear. In this study, the effects of constant load, geometrical parameters and multi-pitting on stress
Dongxu Sun +5 more
doaj +1 more source
Modeling of Micro-Pit Evolution in Rolling or Strip-Drawing [PDF]
Journal of Tribology, 2000 The micro-plasto-hydrodynamic lubrication (MPHL) model of pit evolution is extended to account for the variation of sliding speed and strain rate in rolling and drawing processes. Results show that all of the following factors are important: pit angle, lubricant viscosity and pressure viscosity coefficient, material yield stress and sliding speed ...
M. P. F. Sutcliffe, H. R. Le, R. Ahmed
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Numerical Simulation of Material Strength Deterioration due to Pitting Corrosion [PDF]
, 2014 Pitting corrosion is an insidious form of localized corrosion affecting characteristics of various engineering metallic alloys. Currently very limited literature exists with regard to systematic characterization of pitted surfaces or the efficient use of
Salonitis, Konstantinos +3 more
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