| Autor: |
CRÎŞMARU, Ionuţ Vasile, BĂSESCU, Gică Narcis, PAPATOIU BINIUC, Carmen, IVANCU, Ionel, PINTILEI, Geanina Laura, MUNTEANU, Corneliu |
| Předmět: |
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| Zdroj: |
Proceedings of the Scientific Conference AFASES; May2013, p501-506, 6p |
| Abstrakt: |
The material subjected to the analyses was chosen from the usually used materials in the manufacturing of turbine blades, which enter in the class of Ni base super alloys materials. The material used for the manufacturing of MIG 21 TUMANSKY R-13 turbine blades is of russian provenience. The thermal barrier (TBC) type coating used for turbine blade deposition consists of two layers. The firs layer is relatively thin and named bonding layer and the second one is sprayed over the first and has the role of thermal barrier. The bonding layer is made from a MCrAlY ceramic-metal alloy. The purpose of this layer is to protect the base material from oxidation and corrosion and to increase the adherence of the thermal barrier to the base material. The usually used material in the aeronautics industry as thermal insulator is zirconium oxide stabilized with yttrium oxide. Both layers were deposited on the samples with the 7MB METCO installation from Sulzer Metco. The material used for the thermal barrier deposition is the ZrO2/20%Y2O3 powder. This paper analyses how the samples behave to heat treatment from the point of view of structural changes. After heat treatment the surfaces were analyzed microstructuraly and morphologically by electronic microscopy, and in terms of the phase composition by X-ray diffraction. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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