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首页> 外文会议>American Society of Mechanical Engineers(ASME) Turbo Expo vol.2; 20040614-17; Vienna(AT) >'The Development of Innovative Methods for Erosion Testing a Russian Coating on GE T64 Gas Turbine Engine Compressor Blades'
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'The Development of Innovative Methods for Erosion Testing a Russian Coating on GE T64 Gas Turbine Engine Compressor Blades'

机译：“对GE T64燃气涡轮发动机压气机叶片上的俄罗斯涂层进行冲蚀测试的创新方法的开发”

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摘要

The US Navy became aware of a Russian erosion-resistant compressor coating in 1991. The coating was being applied to compressor airfoils on the TV2-117 engine (MI-8 helicopter). Performance data obtained from the Russian coating company showed greatly improved erosion resistance, leading to better engine performance and longer time-on-wing. A proposal was sent to the Foreign Comparative Testing (FCT) office to evaluate the coating for US Navy engines operating in sandy environments. The project was approved and funded in 1997. It was determined that the high-speed erosion chamber at the University of Cincinnati would provide the optimum testing environment for the program. The test articles consisted of a bare blade and a coated blade. Testing conditions required 10 micron silica sand impinging upon the blades at 700 feet per second (fps). Data was collected until the bare blade reached the chord reject criteria. Testing continued until the coated blade reached failure as well. It was found that the coating improved the overall blade life by 300-500%. A method was developed to measure the eroded blades at certain points to determine the real or "effective" chord at any point during the testing. This project demonstrated the need for innovative gauging techniques in order to understand the actual effects of erosion on compressor blades.
机译：1991年，美国海军意识到了俄罗斯的耐腐蚀压缩机涂层。该涂层被用于TV2-117发动机（MI-8直升机）的压缩机机翼。从俄罗斯涂料公司获得的性能数据表明，其耐蚀性得到了极大的改善，从而改善了发动机性能并延长了飞行时间。一项建议已发送到外国比较测试（FCT）办公室，以评估在沙质环境中运行的美国海军发动机的涂层。该项目于1997年获得批准和资助。确定辛辛那提大学的高速腐蚀室将为该计划提供最佳的测试环境。测试物品包括裸露的刀片和涂层的刀片。测试条件要求10微米的硅砂以每秒700英尺（fps）的速度撞击刀片。收集数据，直到裸露的刀片达到和弦拒绝标准为止。继续测试，直到涂覆的刀片也出现故障。发现该涂层将整个叶片寿命提高了300-500％。开发了一种在某些点测量侵蚀叶片的方法，以确定在测试过程中任何时刻的真实或“有效”弦。该项目表明需要创新的测量技术，以便了解腐蚀对压缩机叶片的实际影响。

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