Ferrographic examination of solid particles contaminating lubricating oil

This work aims to examine solid contaminants and wear particles in lubricat ing oils by Ferrographic oil analysis. Oil samples taken from internal comb ustion engines, gear boxes, gas turbines and hydraulic machinery have been examined. Ferrography as one Of the analytical methods designed to quantify wear and contaminant particles circulating in the oils, introduces mean of monitoring Me wear process, indicating wear mechanism and detecting wear a bnormality. The photomicrographs of Ferrograms, prepared from oil samples taken from di fferent machinery and illustrated in this work, provide specific informatio n to identify the wear and solid particles contaminated in lubricating oils . The visual inspection of those particles by microscope can describe the w ear mechanism which generates those particles, detect the transfer from one wear mechanism to the other and identify, the abnormality of wear. The ava ilable information cart help in the study of tribological problems such as friction, wear and lubrication as well as developing filtration technology and testing both bearing and friction materials.