一、表面工程的发展历程 表面工程,是经表面预处理后,通过表面涂覆、表面改性或多种表面工程技术复合处理,改变固体金属表面或非金属表面的形态、化学成分、组织结构和应力状态,以获得所需要表面性能的系统工程。工业现代化的发展对设备零部件表面性能的要求越来越高,特别是在高速、高温、高压、重载、腐蚀介质等条件下,零部件材料的破坏往往自表面开始,如磨损、腐蚀、高温氧化等,表面的局部损坏又往往造成 First, the development process of surface engineering Surface engineering, is the surface pretreatment, through surface coating, surface modification or a variety of surface engineering technology complex treatment, changing the solid metal surface or non-metallic surface morphology, chemical composition, organizational structure And stress state to achieve the desired surface properties of the system engineering. The development of industrial modernization has become more and more demanding on the surface properties of equipment parts, especially under the conditions of high speed, high temperature, high pressure, heavy load and corrosive media, etc. The failure of parts and materials often start from the surface, such as wear, corrosion, High temperature oxidation, the surface of the local damage is often caused