scholarly journals Hot corrosion behavior of nanostructured Gd 2 O 3 doped YSZ thermal barrier coating in presence of Na 2 SO 4 + V 2 O 5 molten salts

2017 ◽  
Vol 27 (4) ◽  
pp. 507-513 ◽  
Author(s):  
Yixiong Wang ◽  
Chungen Zhou
Keyword(s):  
Thermal Barrier Coating ◽  
Corrosion Behavior ◽  
Hot Corrosion ◽  
Molten Salts ◽  
Thermal Barrier ◽  
Barrier Coating

Preparation of plasma sprayed nanostructured GdPO4 thermal barrier coating and its hot corrosion behavior in molten salts

2017 ◽  
Vol 43 (10) ◽  
pp. 7797-7803 ◽  
Author(s):  
Mingzhu Li ◽  
Yuxian Cheng ◽  
Lei Guo ◽  
Chenglong Zhang ◽  
Yuchen Zhang ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Corrosion Behavior ◽  
Hot Corrosion ◽  
Molten Salts ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Plasma Sprayed

scholarly journals Hot Corrosion Behavior of BaLa2Ti3O10 Thermal Barrier Ceramics in V2O5 and Na2SO4 + V2O5 Molten Salts

Coatings ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 351 ◽  
Author(s):  
Hui Liu ◽  
Jin Cai ◽  
Jihong Zhu
Keyword(s):  
Corrosion Behavior ◽  
Hot Corrosion ◽  
Molten Salts ◽  
Main Reaction ◽  
Thermal Barrier ◽  
Dense Layer ◽  
Reaction Products ◽  
Corrosion Medium ◽  
Barrier Coating ◽  
Salt Corrosion

BaLa2Ti3O10 ceramics for thermal barrier coating (TBC) applications were fabricated, and exposed to V2O5 and Na2SO4 + V2O5 molten salts at 900 °C to investigate the hot corrosion behavior. After 4 h corrosion tests, the main reaction products resulting from V2O5 salt corrosion were LaVO4, TiO2, and Ba3V4O13, whereas those due to Na2SO4 + V2O5 corrosion consisted of LaVO4, TiO2, BaSO4 and some Ba3V4O13. The structures of reaction layers on the surfaces depended on the corrosion medium. In V2O5 salt, the layer was dense and had a thickness of 8–10 μm. While in Na2SO4 + V2O5 salt, it had a ~15 μm porous structure and a dense, thin band at the bottom. Beneath the dense layer or the band, no obvious molten salt was found. The mechanisms by which the reaction layer forms were discussed.

HOT-CORROSION BEHAVIOR OF THERMAL BARRIER COATED DZ125 SUPERALLOY EXPOSED TO ATOMIZED SEAWATER AND KEROSENE

2010 ◽  
Vol 24 (15n16) ◽  
pp. 3155-3160
Author(s):  
ZHIMING BAI ◽  
LE ZHOU ◽  
TIANQUAN LIANG ◽  
HONGBO GUO ◽  
SHENGKAI GONG
Keyword(s):  
Corrosion Resistance ◽  
Electron Beam ◽  
Thermal Barrier Coating ◽  
Corrosion Behavior ◽  
Bond Coat ◽  
Hot Corrosion ◽  
Thermal Barrier ◽  
Average Mass ◽  
Barrier Coating ◽  
Corrosion Behaviors

The bare superalloy DZ 125 alloy, the aluminide coated specimens and electron beam physical vapor deposited (EB-PVD) thermal barrier coating (TBC) consisting of yttria stabilizied zirconia (YSZ) topcoat and NiCoCrAlY bond coat specimens were exposed to atomized seawater and kerosene at 900°C and the cyclic hot-corrosion behaviors of the specimens were investigated. Disastrous spallation of the bare superalloy occurred within 50 h hot-corrosion. In contrast to this, after 100 h hot-corrosion, the average mass change for the aluminized and TBC coated specimens is 0.7 mg/cm2 and 0.63 mg/cm2, respectively, exhibiting excellent hot-corrosion resistance.

Hot-corrosion behavior of a La2Ce2O7/YSZ thermal barrier coating exposed to Na2SO4+V2O5 or V2O5 salt at 900°C

2015 ◽  
Vol 41 (5) ◽  
pp. 6604-6609 ◽  
Author(s):  
Xizhong Wang ◽  
Lei Guo ◽  
Hui Peng ◽  
Lei Zheng ◽  
Hongbo Guo ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Corrosion Behavior ◽  
Hot Corrosion ◽  
Thermal Barrier ◽  
Barrier Coating

Thermal cycling and hot corrosion behavior of a novel LaPO4/YSZ double-ceramic-layer thermal barrier coating

2018 ◽  
Vol 44 (8) ◽  
pp. 8818-8826 ◽  
Author(s):  
Chenglong Zhang ◽  
Jingming Fei ◽  
Lei Guo ◽  
Jianxing Yu ◽  
Binbin Zhang ◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Thermal Barrier Coating ◽  
Corrosion Behavior ◽  
Hot Corrosion ◽  
Ceramic Layer ◽  
Thermal Barrier ◽  
Barrier Coating
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