热障涂层金属粘结层制备与研究进展

张晗, 刘轩溱, 黄爱辉, 赵晓峰, 陆杰

Manufacturing and Research Progress in Metallic Bond Coats for Thermal Barrier Coatings

ZHANG Han, LIU Xuanzhen, HUANG Aihui, ZHAO Xiaofeng, LU Jie

表2 MCrAlY涂层制备工艺的优缺点

Table 2 The advantages and disadvantages of manufacturing for MCrAlY coatings

Manufacturing Advantages Disadvantages APS Stable spraying process. The matrix is less heated and the High porosity. Metal particles would be sample is not easy to deform seriously oxidized during spraying LPPS/VPS Low porosity. Effectively prevent oxidation of Need low vacuum/vacuum environment metal particles during spraying and high cost HVOF/HVAF Low spraying temperature and fast particle flight speed. Large fuel consumption and The coating has high density and low oxygen content relatively high cost EB-PVD Good uniformity, high density and less defects The equipment is expensive and complex to operate AIP High density, fast deposition rate, relatively simple The coating is easy to have large equipment and low cost particle pollution