Tribo-Oxidative Wear with Self-Lubricating Bearings in High Frequency, Low Amplitude Oscillation
Tribo-oxidation resulting from low amplitude oscillating motion
is a deleterious wear mechanism that is often unpredicted and unseen. It occurs
as a combination of both localized wear and localized corrosion. This work
investigated that wear mechanism in conjunction with dry, self-lubricating
bearings. Composite self-lubricating bearings are used in a range of operating
conditions. They function, in part, through the formation of a lubricating
transfer film that is effective at reducing both friction and wear as a result
of relative sliding. The formation of a self-lubricating transfer film is also
known to be effective in the control of tribo-oxidative behavior in low
amplitude sliding conditions. Shaft surface preparation has been noted to
improve system performance in low amplitude sliding conditions. This work
investigated the effect of shaft corrosion resistance upon tribo-oxidative wear
in low amplitude sliding conditions when used in conjunction with composite
bearings