Article ID Journal Published Year Pages File Type
5465442 Surface and Coatings Technology 2017 31 Pages PDF
Abstract
The cold gas dynamic spray (CGDS) method was employed to deposit the CoNiCrAlY bond coats of thermal barrier coating (TBC) system. The oxidation behavior of the coatings were investigated under isothermal oxidation at 1000 °C, 1100 °C and 1200 °C for 8, 24, 50 and 100 h. Recent studies on TBCs have concentrated on the CGDS process and its properties under working conditions. The motivation of this study is to investigate the oxidation behavior of TBCs produced using CGDS technique under service conditions and to determine the oxidation growth kinetics of thermally grown oxide (TGO). The results show that the isothermal degradation of coatings was considerably influenced by microstructure of coating, interfacial oxide growth rate, oxidation temperature and time.
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Physical Sciences and Engineering Materials Science Nanotechnology
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