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通过对失效的第八级压气机盘和叶片观察和金相分析，探讨了该失效件断裂的原因。结果表明，微动磨损引起疲劳断裂。
Through the failure of the eighth stage compressor disk and blade observation and metallographic analysis to explore the cause of failure of the failure pieces. The results show that fretting causes fatigue fracture.