Development of a New Material Test System in a Simulated Gas Turbine Combustion Atmosphere

Abstract

A new testing system for high temperature structural materials and components used for gas turbine has been developed. The system consists of a “can” type of combustion system and a servo-electro hydraulic material testing system, and it can apply thermo-mechanical loadings to a test sample in a simulated gas turbine combustion environment. By means of this new apparatus, failure behavior of a thermal barrier coating (TBC) specimen was studied under a condition of cyclic burner heating on which a constant tensile load was superimposed. The present testing system is expected to provide useful understandings on the damage evolution of the TBCs under specific conditions.