Structural characteristics, oxidation performance and failure mechanism of thermal barrier coatings fabricated by atmospheric plasma spraying and detonation gun spraying

被引：20
作者：
Ozgurluk, Yasin [1 ]
Gulec, Ahmet [2 ]
Ozkan, Dervis [3 ]
Binal, Gulfem [4 ]
Karaoglanli, Abdullah Cahit [4 ,5 ]
机构：
[1] Bartin Univ, Vocat Sch Hlth Serv, Program Med Serv & Tech, TR-74100 Bartin, Turkiye
[2] Sakarya Univ Appl Sci, Karasu Vocat Sch, Program Machine & Welding Technol, TR-54500 Sakarya, Turkiye
[3] Bartin Univ, Fac Engn Architecture & Design, Dept Mech Engn, TR-74110 Bartin, Turkiye
[4] Bartin Univ, Fac Engn Architecture & Design, Dept Met & Mat Engn, TR-74110 Bartin, Turkiye
[5] Bartin Univ, Met & Mat Engn Dept, Fac Engn Architecture & Design, TR-74100 Bartin, Turkiye
来源：
ENGINEERING FAILURE ANALYSIS | 2023年 / 152卷
关键词：
Thermal barrier coatings (TBCs); Oxidation; Blast furnace slag (BFS); Detonation gun (D-gun); Atmospheric plasma spraying (APS); HOT-CORROSION BEHAVIOR; BOND COAT; YSZ; OXIDE; TBCS;
D O I：
10.1016/j.engfailanal.2023.107499
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In recent years, thermal barrier coatings (TBCs) are widely applied to the surface of gas-turbine engines to prolong the service life of high temperature components. The increase in raw material requirements and costs has led to the search for an alternative, cheaper ceramic based material to yttria stabilized zirconia (YSZ), which is the traditional TBC top coating material. In this study, CoNiCrAlY metallic bond coating powders were deposited on Ni-based superalloy substrates by the detonation gun (D-gun) process. Commercial YSZ and blast furnace slag (industrial waste) powders were deposited on the bond coating by atmospheric plasma spraying (APS) technique. TBCs were subjected to isothermal oxidation tests for 8, 24, 50, and 75 h at 800 degrees C. The microstructural properties of the TBCs were evaluated comparatively using advanced characterization techniques before and after oxidation tests. It has been observed that the coatings produced using BFS material have a potential to be used in different types of industries as a lowcost and environmental solution against high temperature oxidation conditions.
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页数：11
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