Application,Failure and Maintenance of Thermal Barrier Coating on Aero-engine Turbine Blades
Thermal barrier coating plays an important role in prolonging the service life of aero-engine turbine blades.Firstly,the importance of thermal barrier coating for aero-engine turbine blades was summarized.Secondly,the preparation technology and application characteristics of thermal barrier coating for aero-engine turbine blades were summarized.Three thermal barrier coatings,atmospheric plasma,electron beam physical vapor deposition and plasma spray-physical vapor deposition,were mainly discussed.On this basis,the typical failure modes of thermal barrier coating on aero-engine turbine blades were described,including high temperature oxidation failure,thermal corrosion failure and particulate impact.The failure mechanism of the above failure modes was discussed.Finally,combined with the engine condition monitoring and turbine blade hole exploration technology,the engineering case analysis and suggestions for the typical failure of thermal barrier coating on turbine blades were given.
turbine bladehot end componentsthermal barrier coatingfailure analysismaintenance method
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