摘要
以用于空心叶片外表面的ＡＳＬ－５水溶性扩散型料浆铝－硅涂层工艺为基础，研究了叶片内孔道料浆注入防护工艺。研究结果表明：ＡＳＬ－５料浆采用料浆注入法用于叶片内孔道防护，涂层覆盖率可达１００％，涂层厚度均匀，无烧结、堵孔现象。而且通过适当调整料浆成分可使内孔道的涂层组织、成分和外表面涂层完全一致。
A slurry injection process to coat internal cooling passages of turbine blades was studied based on the ASL-5 water-based and diffusion type slurry Al-Si coating process employed for external surface protection. The results show that this process can provide coating with 100%coverage and good uniformity,and without cemetation and hole blockage using ASL5 slurry.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1996年第12期39-43,共5页
Journal of Materials Engineering
关键词
涡轮
叶片
涂层
内孔道
航空发动机
s:turbine blade Al-Si coating internal cooling passage
