Thermomechanical simulations of the transient coupled effect of thermal cycling and oxidation on residual stresses in thermal barrier coatings

2021 ◽  
Author(s):  
L.Y. Lim ◽  
S.A. Meguid
Keyword(s):  
Residual Stresses ◽  
Thermal Cycling ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Coupled Effect

Evolution of Residual Stresses in PS-PVD Thermal Barrier Coatings on Thermal Cycling

2018 ◽  
Vol 27 (6) ◽  
pp. 914-923 ◽  
Author(s):  
Jiasheng Yang ◽  
Huayu Zhao ◽  
Xinghua Zhong ◽  
Jinxing Ni ◽  
Yin Zhuang ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Thermal Cycling ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings

Delamination mechanism of thermal barrier coatings induced by thermal cycling and growth stresses

2021 ◽  
Vol 121 ◽  
pp. 105202
Author(s):  
Y.Q. Xiao ◽  
L. Yang ◽  
W. Zhu ◽  
Y.C. Zhou ◽  
Z.P. Pi ◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Growth Stresses

scholarly journals Phase composition and residual stresses in thermal barrier coatings

2016 ◽  
Vol 729 ◽  
pp. 012017 ◽  
Author(s):  
A A Lozovan ◽  
S Ya Betsofen ◽  
A A Ashmarin ◽  
B V Ryabenko ◽  
S V Ivanova
Keyword(s):  
Phase Composition ◽  
Residual Stresses ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings

scholarly journals Analytical and Experimental Study of Residual Stresses in Thermal Barrier Coatings Deposited on Gas Turbine Blades in Laboratory Dimensions by APS and HVOF Methods to Calculate the Optimal Thickness

2021 ◽  
Vol 3 (1) ◽  
pp. 63-67
Author(s):  
Esmaeil Poursaeidi ◽  
◽  
Farzam Montakhabi ◽  
Javad Rahimi ◽  
◽  
...  
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Analytical Model ◽  
Thermal Barrier Coatings ◽  
Gas Turbines ◽  
Turbine Blades ◽  
Thermal Barrier ◽  
Inlet Temperature ◽  
Optimal Thickness ◽  
Barrier Coatings

The constant need to use gas turbines has led to the need to increase turbines' inlet temperature. When the temperature reaches a level higher than the material's tolerance, phenomena such as creep, changes in mechanical properties, oxidation, and corrosion occur at high speeds, which affects the life of the metal material. Nowadays, operation at high temperatures is made possible by proceedings such as cooling and thermal insulation by thermal barrier coatings (TBCs). The method of applying thermal barrier coatings on the turbine blade creates residual stresses. In this study, residual stresses in thermal barrier coatings applied by APS and HVOF methods are compared by Tsui–Clyne analytical model and XRD test. The analytical model results are in good agreement with the experimental results (between 2 and 8% error), and the HVOF spray method creates less residual stress than APS. In the end, an optimal thickness for the coating is calculated to minimize residual stress at the interface between the bond coat and top coat layers.

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