The worn surfaces of two kinds of carbon/carbon composites after 10 time simulated braking tests of an aircraft were characterized by means of micro Raman spectroscopy and X ray diffraction.

The surface topography and components of protective coating on the worn surface of 45# steel rings were analyzed by SEM and EDAX.

Boxcounting method is applied to compute the threedimensional fractal dimensions of the worn surfaces of Ti6Al4V and plasma source ion implanted diamondlikecarbon film thereon, making use of fractal theory and scaning electron microscopic analysis of the worn surfaces.

According to the surface abrasion form of cast iron seal ring, the author proposed that composite brush plating can effectively repair and strengthen the mating surface of cast iron seal ring.

An experiment using electric resistance analogic method was carried out to study the surface abrasion of the internals in circulating fluidized beds (CFB).

The working surface abrasion and scratch of the trial die were analyzed.

It is concluded that the wearing surfaces of elastic-metallic-plastic (EMP) composite specimens,which have been tested on MPX-2000,have fractal characteristics by measuring and calculating surface profile of EMP.

Test results of wear surface morphology dimension characterization show that wear surface profile has statistical selfaffine dimension characters.

It is very important for real-time numerical video monitor of the wear surface to find the best parameters for depicting the image of the wear surface and numeralize the relationships among them.