FRICTION AND WEAR BEHAVIOR ANALYSIS OF DIFFERENT BEARING MATERIALS

Tribology is the science and technology of interacting surfaces in relative motion of related subjects and practices. Sliding and rolling surfaces represent the key to much of our technological society. Understanding of tribological principles is essentials for successful design of machine elements. When two nominally flat surfaces are placed in a contact, surface roughness causes contact to occur at a discrete contact spots and an interfacial adhesion occurs. Friction is the resistance to motion that is experienced whenever one solid body moves over another. Wear is the surface damage or removal of material from one or both of two solid surfaces in a moving contact. Materials, coatings and surface treatments are used to control friction and wear. One of the most effective means of controlling friction and wear is by proper lubrication, which provides smooth running and satisfactory life of machine elements. Lubricants can be liquid, solid, gas. Present scenario works on solid lubricant as per demands from the industries. For different application such as non-lubricant compressor, gears in micro machinery parts require lubrication. But wet lubrication is not beneficial or not much more significant effects, due to contamination of oil. Some application such as compressors and juice extracting machine, where oil contamination with food and various food products is a serious problem. Some applications have too complicate design and some application has to be installed in complicate placeless where periodically oiling requires for its better performance. The aim of the project work is to find the better combination of metal matrix solid lubricant that acts as solid lubricant for different application. With mixing the brass with different filler material such as. Aluminium, steel (EN08) and Brass, Copper, were investigated in dry sliding conditions. Friction and wear experiments were conducted on pin-on-disc apparatus, using composite pins against polished EN31 steel cou