2013•Journal of Xi'an Aeronautical UniversityRequires access

Fracture Analysis of Turbine Component in an Aero-engine

HE Xiao-ta

Abstract

Several turbine blades and the air vent valve(BV)cracked in a service aero-engine.The fracture mode of cracked accessories is confirmed by on-site observation,metallographic structure examination,fracture analysis,and mechanism analysis.It comes to a conclusion that the primary reason for the turbine component over-temperature-fracture is the air vent valve(BV)fatigue fracture.In addition,suggestions are made on the basis.

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Key concepts: Fracture (geology), Turbine, Aero engine, Component (thermodynamics), Gas turbines, Forensic engineering, Structural engineering, Mechanical engineering