FrettingWear
FrettingWear is a form of wear produced by small-amplitude oscillatory relative motion at contact interfaces under load, leading to surface damage and debris. It is common where components experience repetitive tangential forces such as joints, fasteners, pivots, bearings, and dental implants.
Mechanism: The motion causes micro-slip, high local contact stresses, frictional heating and oxide layer disruption. Repeated
Evaluation: Fretting wear is studied with specialized fretting tests that apply controlled normal load and oscillatory
Mitigation and materials: Solutions include increasing preload to reduce slip, selecting materials with compatible hardness and