Wear - Types

Types

The study of the processes of wear is part of the discipline of tribology. The complex nature of wear has delayed its investigations and resulted in isolated studies towards specific wear mechanisms or processes. Some commonly referred to wear mechanisms (or processes) include:

  1. Adhesive wear
  2. Abrasive wear
  3. Surface fatigue
  4. Fretting wear
  5. Erosive wear

A number of different wear phenomena are also commonly encountered and presented in the literature. Impact-, cavitation-, diffusive- and corrosive- wear are all such examples.
These wear mechanisms, however, do not necessarily act independently and wear mechanisms are not mutually exclusive. "Industrial Wear" are commonly described as incidence of multiple wear mechanisms occurring in unison. Another way to describe "Industrial Wear" is to define clear distinctions in how different friction mechanisms operate, for example distinguish between mechanisms with high or low energy density. Wear mechanisms and/or sub-mechanisms frequently overlap and occur in a synergistic manner, producing a greater rate of wear than the sum of the individual wear mechanisms.

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