海洋环境服役飞机发动机镁合金使用要求和研究方向分析

骆晨, 吴雄, 宋汉强, 孙志华, 汤智慧

Analysis of Application Requirements and Research Directions of Magnesium Alloys for Aircraft Engines Serving in Marine Environment

LUO Chen, WU Xiong, SONG Hanqiang, SUN Zhihua, TANG Zhihui

表1 现役航空发动机镁合金结构应用情况汇总

Table 1 List of applications of in-service aeroengine magnesium alloy structures

No. Component Material Protective scheme Position Working condition Engine 1 Accessory gearbox inlet duct ZM5 Oxidation + 2 coats of primer + 1 coat of topcoat Accessory transmission components Air Certain turboprop engine 2 Reducer front cover ZM5 Protective paint Parts inside the airflow channel Air Certain turboprop engine 3 Oil mist separator housing ZM5 Protective paint External parts of the engine Air Certain turboprop engine 4 Front support housing ZM2 Strontium yellow composite paint Engine front channel Air Certain turbojet engine 5 Auxiliary gearbox housing assembly ZM3Zn3Zr Protective paint Engine exterior Air, lubricating oil Certain turbofan engine