Trial construction of pin-on-disk type tribometer and study on evaluation method of wear rate

A pin-on-disk tribometer was constructed as a trial machine, with which an endeavor was made to obtain the wear rate in step load method throughout the run. Experiments were conducted for aluminum alloy and cast iron using some lubricants, in which the friction coefficient, the contact potential and the wear length were determined. By making the correction of the wear length based on thermal expansion and elastic deformation of test specimen, it was found that the measurements of wear rate on the tribometer had a sufficiently accurate data.