Compressor blades and fan blades of aero engine encounter the blasting load from sand particles during service, as well as the influence of temperature, humidity and air pollution. In this paper, test methods related to sand environment and sand particle erosion are investigated, with emphasis on the common and difference of these methods using high speed sand stream to impact on samples. Gas jet test is chosen as a proper method to carry out erosion test and research for compressor blade and fan blade. An erosion method is designed according to the sand composition and particle size listed in GJB 241A-2010, GJB 242A- 2018. Sand feeding rate and testing time are controlled so as to meet the sand mass loads of compressor blade and fan blade in real service. The sand mass load is equivalent to the sand blast environment for aero engine in 1 year. Sand particle erosion testing and GJB 150.11A-2009 salt fog testing are carried out alternatively so that the testing scheme is closer to real service condition. Such methods may provide a technique foundation for aero engine compressor blade and fan blade to establish damage evolution rules and models considering the effect of corrosion environment and erosion load.

environmental testing  /  erosion  /  corrosion  /  aero engine  /  environmental adaptability