Magnetization of friction surfaces and wear particles by tribological processes

Wear ◽  
2010 ◽  
Vol 268 (1-2) ◽  
pp. 185-189 ◽  
Author(s):  
Alan Hase ◽  
Hiroshi Mishina
Keyword(s):  
Wear Particles ◽  
Friction Surfaces

Investigation of the formation of friction surface microgeometry of a wear-resistant coating during friction with a metal counterbody

2021 ◽  
pp. 147-152
Author(s):  
N.F. Struchkov ◽  
G.G. Vinokurov ◽  
O.N. Popov
Keyword(s):  
Statistical Model ◽  
Binomial Distribution ◽  
Friction Surface ◽  
Sliding Friction ◽  
Wear Particles ◽  
Wear Resistant ◽  
Wear Resistant Coatings ◽  
Frictional Interaction ◽  
Surface Microgeometry ◽  
Friction Surfaces

Were is researched the friction surfaces of wear-resistant coatings with modifying additives Al2O3 and metal counterbody made of ShH15 steel, and also reveals the factors that influence the formation of coating microgeometry of surface during sliding friction. A statistical model has been developed based on the binomial distribution of removed wear particles to describe the frictional interaction during friction of the coating with a metal counterbody.

scholarly journals Diagnóstico del mecanismo de desgaste aplicado en pares tribológicos mediante ferrografía. // Diagnostic of wear mechanism on tribology pairs using ferrographyc analisys.

Ciencia Unemi ◽  
2017 ◽  
Vol 10 (22) ◽  
pp. 49-58
Author(s):  
Jose Granizo
Keyword(s):  
Abrasive Wear ◽  
Wear Mechanism ◽  
Metal Particles ◽  
Wear Particles ◽  
Relative Movement ◽  
Friction Surfaces ◽  
Primary Phenomenon ◽  
Shape And Size

El análisis ferrográfico de partículas metálicas producto del desgaste, representa una valiosa herramienta para diagnosticar el mecanismo de desgaste en pares tribológicos sujetos a movimiento relativo en un medio lubricado. La morfología de las partículas de desgaste, su forma y tamaño permiten mediante este método determinar el principal fenómeno que causa el desgaste en las superficies friccionantes. Esta técnica ha sido aplicada en los motores de los generadores de la empresa Sociedad Minera Liga de Oro en calidad de herramienta auxiliar de mantenimiento, divisando partículas de desgaste abrasivo, óxidos negros y silicatos. ABSTRACTThe ferrographic analysis of metal particles from wastage represents a valuable tool for diagnosing the wear mechanism in tribology pairs subject to relative movement in a lubricated environment. The morphology of the wear particles, their shape and size allow to determine the primary phenomenon causing wear on friction surfaces. This technique has been applied to engines generators at the Golden League Mining Society as an auxiliary maintenance tool, spotting particles of abrasive wear, black oxides and silicates.

ANALYSIS OF AUTOMATIC TRANSMISSION USING FOURIER TRANSFORM INFRARED (FTIR) SPECTROCOPY

2019 ◽  
Vol 7 (SI-TeMIC18) ◽  
Author(s):  
Norhanifah Abdul Rahman ◽  
Matzaini Katon Katon ◽  
Nurina Alya Zulkifli Zulkifli
Keyword(s):  
Fourier Transform ◽  
Automatic Transmission ◽  
Fourier Transform Infrared ◽  
Oil Analysis ◽  
Wear Particles ◽  
Reliable Technique ◽  
Fluid Analysis ◽  
Analysis Technique ◽  
Machine Elements ◽  
Transmission Fluid

Automatic Transmission (AT) system is efficient in the aspects of vehicle safety, comfort, reliability and driving performance. The objectives of this paper are to collect the oil samples from AT systems of engine bus according to manufacturer's recommendations and analyse collected oil samples using oil analysis technique. The sample transmission fluid which was taken from the AT gearbox has been experimentally analyzed. The oil samples were taken with an interval of 5,000km, 30,000km, 50,000km, 80,000km, 180,000km and 300,000km for AT bus operation. These samples then have been analyzed by comparing between new and used transmission fluid using Fourier Transform Infrared (FTIR) spectroscopy. Oil analysis by FTIR is a form of Predictive Maintenance (PdM) to avoid major failure in machine elements. Most machine elements are not easily accessible in the transmission system. Having a reliable technique would avoid the needs to open the components unnecessarily, hence, help to prevent catastrophic failure which are very costly, and ease of regular monitoring. In order to identify the major failures of automatic gearbox, forecasts can be made regarding the lube transmission fluid analysis test. By using this test, the minor problems can be determined before they become major failures. At the end of this research, the wear particles profile for interval mileage of AT system was obtained. Keywords: Wear, Automatic Transmission (AT), Transmission fluid, Fourier Transform Infrared (FTIR), Oil analysis.

TIRE-WEAR PARTICLES AS A MAJOR COMPONENT OF MICROPLASTICS IN THE ENVIRONMENT

2018 ◽  
Author(s):  
Reto Gieré ◽  
◽  
Frank Sommer ◽  
Volker Dietze ◽  
Anja Baum ◽  
...  
Keyword(s):  
Wear Particles ◽  
Tire Wear

scholarly journals Tyre wear particles: an abundant yet widely unreported microplastic?

2020 ◽  
Vol 27 (15) ◽  
pp. 18345-18354 ◽  
Author(s):  
Lydia J. Knight ◽  
Florence N. F. Parker-Jurd ◽  
Maya Al-Sid-Cheikh ◽  
Richard C. Thompson
Keyword(s):  
Wear Particles ◽  
Tyre Wear

scholarly journals Analysis of High-Friction Surface Texture with Respect to Friction and Wear

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 758
Author(s):  
Cibi Pranav ◽  
Minh-Tan Do ◽  
Yi-Chang Tsai
Keyword(s):  
Friction Coefficient ◽  
Surface Texture ◽  
Safety Concern ◽  
Future Research ◽  
Scanning System ◽  
Novel Approach ◽  
Texture Parameters ◽  
Aggregate Loss ◽  
Friction Surfaces ◽  
The Impact

High Friction Surfaces (HFS) are applied to increase friction capacity on critical roadway sections, such as horizontal curves. HFS friction deterioration on these sections is a safety concern. This study deals with characterization of the aggregate loss, one of the main failure mechanisms of HFS, using texture parameters to study its relationship with friction. Tests are conducted on selected HFS spots with different aggregate loss severity levels at the National Center for Asphalt Technology (NCAT) Test Track. Friction tests are performed using a Dynamic Friction Tester (DFT). The surface texture is measured by means of a high-resolution 3D pavement scanning system (0.025 mm vertical resolution). Texture data are processed and analyzed by means of the MountainsMap software. The correlations between the DFT friction coefficient and the texture parameters confirm the impact of change in aggregates’ characteristics (including height, shape, and material volume) on friction. A novel approach to detect the HFS friction coefficient transition based on aggregate loss, inspired by previous works on the tribology of coatings, is proposed. Using the proposed approach, preliminary outcomes show it is possible to observe the rapid friction coefficient transition, similar to observations at NCAT. Perspectives for future research are presented and discussed.

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