Comparison of Oxidation and Thermal Shock Performance of Thermal Barrier Coatings

被引：18

作者：

Karaoglanli, Abdullah Cahit ^{[1
]}

Turk, Ahmet ^{[2
]}

Ozdemir, Ismail ^{[3
]}

Ustel, Fatih ^{[2
]}

机构：

[1] Bartin Univ, Dept Met & Mat Engn, TR-74100 Bartin, Turkey

[2] Sakarya Univ, Dept Met & Mat Engn, Sakarya, Turkey

[3] Izmir Katip Celebi Univ, Dept Mat Sci & Engn, Izmir, Turkey

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2015年 / 30卷 / 06期

关键词：

Coatings; Failure; High-temperature; MCrAlY; Microstructure; Oxidation; Superalloys; TBCs; INTERFACE ROUGHNESS; PLASMA; HVOF; BEHAVIOR; FAILURE; MICROSTRUCTURE; MECHANISMS; THICKNESS; GROWTH; TBCS;

D O I：

10.1080/10426914.2014.952025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Operating temperatures in gas turbine engines have reached to 1200 degrees C with the latest developments in coating technology. Thermal shock and furnace oxidation tests are widely used to determine thermal barrier coating (TBC) performance and its durability in aircraft applications. This paper presents the results of thermal shock and furnace oxidation tests, carried out with regard to the microstructure and TGO (thermally grown oxide) growth behavior of TBC systems. Isothermal oxidation behavior of TBCs was evaluated through examination of microstructure, formation, and growth behavior of TGO layers at 1200 degrees C for different time periods in furnace oxidation tests. On the other hand, thermal shock behavior of TBC was evaluated through examination of its durability at 1200 degrees C with thermal shock test, which was carried out until the coating failure became visible. The relationship between the TGO growth and oxidation behavior was discussed using furnace oxidation test results.

引用

页码：717 / 723

页数：7

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