Wear experiments in the scanning electron microscope

摘要: Abstract Wear experiments using a ball-on-flat configuration were performed in scanning electron microscope. The sequence of events occurring during the initial or wear-in phase was followed for three different materials: these mild steel, brass and aluminum. Differences behavior among materials striking. Adhesion prow formation observed aluminum experiment. A change from sharp microstriations to increasing macrodeformation characteristic steel. In addition, readily identifiable persisted many cycles sliding contact on steel surface, while surface features changed with each cycle. Microscopic extrusions lip progress asperities incipient wear debris. tendency debris transfer harder influence striation opposing observed.