THE CORROSION INFLUENCE ON USING OF METAL MATRIX COMPOSITES BRAKE DISCS
Journal Title: Tribologia - Year 2012, Vol 241, Issue 1
Abstract
In this article an influence of corrosion on tribologial properties of composite material F3S.20S (A359+20%mSiC) mated with material used in production of brake pads (F701) has been studied. In order to define the influence of the used composite on utility features of brakes, the research results were compared with the ones received in the same experimental conditions for the brake discs made of grey cast iron with flake graphite. The time of the exposition of the counter-samples to the corrosion environment has been accepted as 0, 48 and 240 hours. Tests have been performed on a pin-on-disc apparatus, according to the Hartley’s plan of experiment. Their results have been used to determine the influence of pressure, sliding velocity and time of exposition on corrosion on friction coefficient and mass loss of the rubbing materials Obtained dependences have been described with quadratic functions and presented on 3D graphs, Fig. 2 and 3. Composite was characterised with considerably lower susceptibility to changes of the value of friction factor (0.25÷0.32) in comparison to grey cast iron (0.2÷0.6). Its wear was also several times lower than of the traditional material.
Authors and Affiliations
Robert Czech, Andrzej Posmyk
Keywords
Related Articles
- EP ID EP270538
- DOI -
- Views 74
- Downloads 0
INVESTIGATIONS OF THE STATIC FRICTION COEFFICIENT OF PE-UHMW POLYETHYLENE SUBJECTED TO THE IONIZING RADIATIONS
The paper describes an investigation of a static friction coefficient of PE-UHMW polyethylene subjected to ionizing radiations and aging, which imitated a biological influence of the human body on the tested material. Tr...
ANALYSIS OF ELASTICITY MODULUS AND MICROHARDNESS OF ENGINE PISTON SURFACE LAYERS IN THE ASPECT OF ITS WEAR
The paper presents the results of micro-hardness and Young's modulus measurements of the surface layers of selected surfaces of engine piston. Indentations were performed in the side, bottom, and the hub of the piston, i...
THE EFFECT OF OIL POCKETS ON THE SEIZURE OF A FRICTIONAL PAIR: STEEL–BRONZE
The paper shows the examples of cylindrical surfaces with oil pockets created in Rzeszów University of Technology, Department of Manufacturing Processes and Production Organisation. Possibilities of improvement in seizur...
Właściwości tribologiczne kompozytów metalopolimerowych w warunkach tarcia technicznie suchego
FINITE ELEMENT MODELLING OF DEFORMATION AND STRESS IN THE COATING-SUBSTRATE SYSTEMS DURING SCRATCH TESTS
The paper presents the influence of external loads carried in contact load conditions caused by a diamond indenter during scratch testing on stress distribution in a coating-substrate. The maximum tensile stress concentr...