J191031 ガスタービンエンジン燃焼雰囲気再現装置を用いたしゃ熱コーティングの熱機械的負荷試験([J19103]構造・材料の高度化に向けた宇宙工学と材料力学の展開(3))

概要

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A new testing system for high temperature structural materials and components used for gas turbine has been developed. The system consists of an advanced combustion system and a servo-electro hydraulic material testing system, and it can give thermo-mechanical loadings to a test sample in simulating actual 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 together with a constant tensile loading. The experimental results demonstrated that the failure behavior was sensitive to the temperature distribution of specimens and to the combustion gas flow. The present testing system would be very helpful to evaluate the damage of the TBCs under in-service conditions close to actual advanced gas turbines engine operation.
2011-09-11