scholarly journals Improved hot corrosion resistance of plasma sprayed YSZ/Gd2Zr2O7 thermal barrier coating over single layer YSZ

2019 ◽  
Vol 147 ◽  
pp. 199-206 ◽  
Author(s):  
P.G. Lashmi ◽  
Sumil Majithia ◽  
V. Shwetha ◽  
N. Balaji ◽  
S.T. Aruna
Keyword(s):  
Corrosion Resistance ◽  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Single Layer ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Plasma Sprayed

HOT CORROSION OF CERIA-YTTRIA STABILIZED ZIRCONIA PLASMA SPRAYED THERMAL BARRIER COATING BY EUTECTIC VANDIUM PENTAOXIDE-SODIUM SULFATE

2018 ◽  
Vol 18 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Mohammed J Kadhim ◽  
Mohammed H Hafiz ◽  
Maryam A Ali Bash
Keyword(s):  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Monoclinic Phase ◽  
Volume Fraction ◽  
High Volume ◽  
Thermal Barrier ◽  
Air Plasma ◽  
Plan View ◽  
Barrier Coating ◽  
Plasma Sprayed

The high temperature corrosion behavior of thermal barrier coating (TBC) systemconsisting of IN-738 LC superalloy substrate, air plasma sprayed Ni24.5Cr6Al0.4Y (wt%)bond coat and air plasma sprayed ZrO2-20 wt% ceria-3.6 wt% yttria (CYSZ) ceramic coatwere characterized. The upper surfaces of CYSZ covered with 30 mg/cm2 , mixed 45 wt%Na2SO4-55 wt% V2O5 salt were exposed at different temperatures from 800 to 1000 oC andinteraction times from 1 up to 8 h. The upper surface plan view of the coatings wereidentified for topography, roughness, chemical composition, phases and reaction productsusing scanning electron microscopy, energy dispersive spectroscopy, talysurf, and X-raydiffraction. XRD analyses of the plasma sprayed coatings after hot corrosion confirmed thephase transformation of nontransformable tetragonal (t') into monoclinic phase, presence ofYVO4 and CeVO4 products. Analysis of the hot corrosion CYSZ coating confirmed theformation of high volume fraction of YVO4, with low volume fractions of CeOV4 and CeO2.The formation of these compounds were combined with formation of monoclinic phase (m)from transformation of nontransformable tetragonal phase (t').

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.

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 Development of Thermal Barrier Coating with Hot Corrosion Resistance.

1992 ◽  
Vol 31 (4) ◽  
pp. 336-338 ◽  
Author(s):  
Shinichi Tamura ◽  
Hatsuo Taira ◽  
Shouji Mishima ◽  
Norifumi Nagata ◽  
Noriyuki Mifune
Keyword(s):  
Corrosion Resistance ◽  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Thermal Barrier ◽  
Barrier Coating

Oxidation and hot corrosion resistance of HVOF/EB-PVD thermal barrier coating system

2021 ◽  
Vol 409 ◽  
pp. 126862
Author(s):  
Kadir Mert Doleker ◽  
Yasin Ozgurluk ◽  
Yasar Kahraman ◽  
Abdullah Cahit Karaoglanli
Keyword(s):  
Corrosion Resistance ◽  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Thermal Barrier ◽  
Coating System ◽  
Thermal Barrier Coating System ◽  
Barrier Coating

Hot corrosion studies on plasma sprayed bi-layered YSZ/La 2 Ce 2 O 7 thermal barrier coating fabricated from synthesized powders

2017 ◽  
Vol 711 ◽  
pp. 355-364 ◽  
Author(s):  
P.G. Lashmi ◽  
P.V. Ananthapadmanabhan ◽  
Y. Chakravarthy ◽  
G. Unnikrishnan ◽  
N. Balaji ◽  
...  
Keyword(s):  
Thermal Barrier Coating ◽  
Hot Corrosion ◽  
Thermal Barrier ◽  
Barrier Coating ◽  
Corrosion Studies ◽  
Plasma Sprayed
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