ガスタービン用遮熱コーティングの界面酸化層検出への小型励起光源の適用性評価

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2013/11/01

タイトル(英語): Evaluation of Applicability of Compact Excitation Light Source to Detection of Thermally Grown Oxide Layer in Thermal Barrier Coating for Gas Turbines

著者名: 福地　哲生（（一財）電力中央研究所 電力技術研究所），江藤　修三（（一財）電力中央研究所 電力技術研究所），岡田　満利（（一財）電力中央研究所 エネルギー技術研究所），藤井　智晴（（一財）電力中央研究所 エネルギー技術研究所）

著者名(英語): Tetsuo Fukuchi (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Shuzo Eto (Electric Power Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Mitsutoshi Okada (Energy Engineering Research Laboratory, Central Research Institute of Electric Power Industry), Tomoharu Fujii (Energy Engineering Research Laboratory, Central Research Institute of Electric Power Industry)

キーワード: 遮熱コーティング，界面酸化層，熱酸化，クロムイオン，光ルミネッセンス，連続発振レーザ　　thermal barrier coating，thermally grown oxide layer，thermal oxidation，chromium ion，photoluminescence，continuous wave laser

要約(英語): A compact, continuous wave laser was applied to detection of the thermally grown oxide (TGO) layer in thermal barrier coating (TBC) for gas turbine high temperature components by photoluminescence. Experiments were conducted using TBC specimens heated in air to artificially produce a TGO layer. For specimens heated at 1100℃, the photoluminescence intensity increased with heating time, whereas for specimens heated at 1000℃, the photoluminescence intensity did not increase beyond 100 hr. The results indicate that the formation of the TGO layer is strongly dependent on the temperature. In addition, scanning electron microscope (SEM) observations of the specimen cross section confirmed the formation of the TGO layer after 100 hr heating at 1100℃. The applicability of a compact laser to TGO layer detection allows development of a simple TGO detection system, which can be used for screening for detailed inspection of delamination.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.133 No.11 （2013）

本誌掲載ページ: 565-571 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/133/11/133_565/_article/-char/ja/