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| Fracture Analysis of Compressor Rotor Blade in Engine |
| Received:October 20, 2010 Revised:June 15, 2011 |
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| DOI： |
| KeyWord:compressor rotor blade high-cycle fatigue erosion |
| Author | Institution |
| JIANG Tao |
Failure Analysis Center， Beijing Institute of Aeronautical Materials， Beijing ， China |
| LI Chun-guang |
China Academy of Civil Aviation Science and Technology， Beijing ， China |
| ZHANG Bing |
Failure Analysis Center， Beijing Institute of Aeronautical Materials， Beijing ， China |
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| Abstract: |
| A compressor rotor blade of Grade III in an aero-engine fractured after serving for a long time. In order to find out the fracture mode and cause, macro and micro observation, EDS analysis, and microstructure and microhardness examination were carried out. The results showed that the fracture of the blade is vibration high-cycle fatigue fracture under the condition of serious erosion. The elements of S and Cl in the air resulted in serious erosion, which promoted the initiation of fatigue crack. |
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