Tribological Systems – An Overview

Tribology is the science of lubrication, friction and wear in objects which rub against each other in motion. A tribological system is the collection of four main parts. They are, the main body which moves, the opposing body which resists the motion, the intermediate material and the surrouding medium. Consider a shaft supported by a …

Fretting

Fretting is the wear that occurs in two surfaces which are supposed to be stationary.  In certain conditions, very slight motion may occur between surfaces which are otherwise stationary.  This can be due to vibration or due to dimensional changes due to temperature variations. If the change is repetitive, there can be wear along the …