Abstract
The damage done to carbon fibre reinforced aluminium (C/Al-composite) by sliding wear was investigated in a series of experiments carried out on a sliding wear test equipment operating on the cylinder-on-disc principle. The defects produced may indicate that this type of wear results in fatigue within the surface regions of the material. The examination of transverse cross sections of the C/Al-composites confirmed the presence of this type of damage at a depth of 10 to 40 μm from the specimen surface. Both pores and cracks were found within the aluminium matrix, only a few 100 nm from the fibre-matrix interface, to which the cracks ran parallel. It is possible that the carbide needles present behave as obstacles to the movement of dislocations. Increasing wear was observed to result in the formation of pores which in turn cause further material damage.
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