Direct observation of frictional seizure by X-ray imaging.
Date of Issue1998
School of Mechanical and Aerospace Engineering
Research has been concentrated on the evaluation of behaviour of frictional pairs in an attempt to improve their shelf life. Despite the efforts to obtain a better understanding of the behaviour of frictional systems, a convincing theory has yet to be established on the mechanism of scoring or scuffing. In-situ observation of frictional contacts was previously performed using either a scanning electron microscope or closed circuit digital camera and was restricted to the observation of leading and trailing edges of the contact. Recent work on in-situ observation of seizure facilitated use of idealized contact of sapphire disk. The present work was aimed at the in-situ observation of seizure by using an X-ray microscope (real time radiography), in practical contacts. This technique facilitates observation of interface during the testing which is not normally possible with the known techniques in case of non-idealized practical contacts.
DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics