Abstract
The wear debris originating from the friction couples steel/steel as well as steel/Al2O3 and steel/SiC in dry, normal and wet atmosphere are characterized. The tests were performed by oscillatory sliding motion with a ball on a flat tribo-couple at room temperature. The obtained oxidic iron phases are investigated by Mossbauer spectroscopy in which differences in particle sizes were found. We can assume Fe2O3 particles with a size of 10–20 nm, whereas at a humidy of 100%, larger particles were obtained despite a smaller amount of wear debris. For the system steel/SiC, a deviating behaviour concerning particle sizes was observed. The wear particles were also studied by electron microscopy.
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