COMPARATIVE FRICTION TESTS OF BRONZE COATINGS FROM SECONDARY MATERIALS

Abstract

Comparative tribotechnical studies of coated samples based on secondary composite materials on a friction machine is an important direction in the development of technologies to increase wear resistance and reduce friction in various industrial sectors. Secondary composite materials are obtained from production waste, which reduces costs and reduces the environmental burden. One of the examples of these materials are coatings obtained by welding and surfacing methods of electroerosive powders based on copper or a hard alloy from waste of tool industries or waste of non-ferrous metals and alloys. (Research purpose) The research purpose is performing a comparative analysis of tribotechnical properties of samples coated by secondary composite materials on a friction machine. (Materials and methods) Samples with a coating based on secondary materials and samples without a coating were produced for comparative studies. A machine was used to test materials for friction and wear AI 5018. (Results and discussion) It was found that coated samples based on secondary composite materials have higher wear resistance and less friction compared to uncoated samples. The coating based on secondary composite materials has a higher hardness and resistance to wear. It was found that with increasing load and sliding speed, the difference in wear resistance and friction between coated and uncoated samples increases. The coating based on secondary composite materials is particularly effective in conditions of high loads and sliding speeds. (Conclusions) Thus, comparative tribotechnical studies of coated samples based on secondary composite materials on a friction machine have shown that such coatings can be an effective way to increase wear resistance and reduce friction in various industrial sectors.