喷嘴
航空发动机
涂层
涡轮机
燃气轮机
涡轮叶片
铝化物
过程(计算)
机械工程
耐久性
材料科学
汽车工程
工程类
计算机科学
复合材料
合金
操作系统
金属间化合物
作者
Ranjan Mishra,Prashant Kumar,K R Rajesh,C. R. Das,Ganapathi Sharma,Dhananjay Kumar Srivastava
出处
期刊:International journal of turbo & jet-engines
[De Gruyter]
日期:2017-11-28
卷期号:38 (1): 51-58
被引量:8
标识
DOI:10.1515/tjj-2017-0050
摘要
Abstract Pack aluminization of high pressure turbine nozzle guide vane of an aero gas turbine engine has been carried out following a well defined systematic procedure. The process parameters are first optimized on dummy vanes and optimized process is followed for the actual vanes for evaluation and testing. Visual and binocular examination followed by metallurgical evaluation have been carried out to validate the process and to establish the adequacy and correctness of the coating. The coated vanes are then evaluated through engine level tests for performance and durability. The results of engine level tests and inspection post accelerated mission test cycles ensure that the vanes with aluminide coating can withstand severe engine operating cycles without any damage or failure which would otherwise would have happened without the coating. The condition of vanes post endurance test is also an indication of enhanced life of the vanes with coating.
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