Friction behaviour of aluminium composites mixed with carbon fibers with different orientations

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Caliman, R.^1

Vasile Alecsandri University of Bacau, Calea Marasesti

157, Romania^1

关键词: Aluminium composites;    Coefficient of frictions;    Friction behaviour;    Friction coefficients;    Friction properties;    Lubricant transfer;    Phenomenological models;    Pin-on-disc machine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/2/022035/pdf
DOI  :  10.1088/1757-899X/145/2/022035

来源: IOP

【 摘 要 】

The primary goal of this study work it was to distinguish a mixture of materials with enhanced friction and wearing behaviour. The composite materials may be differentiated from alloys; which can contain two more components but are formed naturally through different processes such as casting. The load applied on the specimen during the tests, is playing a very important role regarding friction coefficient and also the wearing speed. Sintered composites are gaining importance because the reinforcement serves to reduce the coefficient of thermal expansion and increase the strength and modulus. The friction tests are carried out, at the room temperature in dry condition, on a pin-on-disc machine. The exponentially decreasing areas form graphs, represented to the curves coefficient of friction, are attributed to the formation of lubricant transfer film and initial polishing surface samples. The influence of the orientation of the carbon fibers on the friction properties in the sintered polymer composites may be studied by the use of both mechanical wear tests by microscopy and through the use of phenomenological models.