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Fracture Analysis of Compressor Rotor Blade in Engine

Bing Zhang

Open publisher page 1 citations

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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What this paper is about

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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Available 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.

Key concepts: Fracture (geology), Rotor (electric), Gas compressor, Materials science, Indentation hardness, Structural engineering, Aero engine, Vibration

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