A METALLOGRAPHIC STUDY OF WEAR IN PLANAR-RANDOM FIBER-REINFORCED COMPOSITES WITH AN ALUMINUM ZINC COPPER ALLOY MATRIX


MURPHY S., ARIKAN R.

WEAR, cilt.155, ss.105-115, 1992 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

Dry wear tests carried out on planar-random metal matrix composites with an aluminium-zinc alloy matrix and delta-alumina fibre reinforcement showed large differences in wear rates depending on the predominant orientation of the fibres relative to the sliding surfaces. The surfaces and sections through the surfaces of the wear pins were examined by scanning electron microscopy to determine the causes of this behaviour. Comparison of images obtained in secondary electron contrast with those obtained in backscattered electron contrast allowed a correlation between wear rates and structures of the surface and subsurface layers developed during wear testing.