Wear caused by chemical or electrochemical reaction between materials and surrounding medium. It is characterized by corrosion and wear acting on materials at the same time. In some liquids, gases or lubricant, corrosion products are formed on the working friction pair surface due to chemical or electrochemical reactions. They often do not adhere firmly to the matrix materials, and peel off in the friction process. At the same time, the new surface continues to react with the medium, and continues to form corrosion products. Therefore, corrosion and wear alternately and repeatedly act, resulting in corrosive wear.
Metals -> Special purpose metals -> Wear-resistant metals