一、等量特性涂层的概念热喷涂技术所制备的涂层在多数情况下是由单一涂层材料所获得的。随着现代科学技术的不断发展,对机器零部件的表面性能(包括耐磨、耐热、耐蚀等)提出了更高的要求。因此采用单一涂层材料来制备涂层已远远满足不了现代科学技术发展的要求,这就需要考虑到十分复杂的涂层系统,通常把 First, the concept of equivalent characteristics of the coating The thermal spray coating technology prepared in most cases by a single coating material obtained. With the continuous development of modern science and technology, the mechanical components of the surface properties (including wear resistance, heat resistance, corrosion resistance, etc.) put forward higher requirements. Therefore, the use of a single coating material to prepare the coating has far failed to meet the requirements of the development of modern science and technology, which requires taking into account the very complex coating system, usually