The effects of TGO growth stress and creep rate on TC/TGO interface cracking in APS thermal barrier coatings

2021 ◽  
Author(s):  
Ya-Ping Huang ◽  
Zhi-Yuan Wei ◽  
Hong-Neng Cai ◽  
Yang Liu ◽  
Xue-Cheng Han
Keyword(s):  
Creep Rate ◽  
Thermal Barrier Coatings ◽  
Growth Stress ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Interface Cracking ◽  
Tgo Growth

Acoustic emission assessment of interface cracking in thermal barrier coatings

2015 ◽  
Vol 32 (2) ◽  
pp. 342-348 ◽  
Author(s):  
Li Yang ◽  
Zhi-Chun Zhong ◽  
Yi-Chun Zhou ◽  
Wang Zhu ◽  
Zhi-Biao Zhang ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Interface Cracking

PHASE FIELD SIMULATION FOR HIGH-TEMPERATURE OXIDATION BEHAVIOR OF THERMAL BARRIER COATINGS UNDER SHOT PEENING

2012 ◽  
Vol 04 (04) ◽  
pp. 1250038 ◽  
Author(s):  
CHAO WANG ◽  
RUBING ZHANG ◽  
YONGMAO PEI ◽  
DAINING FANG
Keyword(s):  
High Temperature ◽  
Stress Distribution ◽  
Thermal Barrier Coatings ◽  
Shot Peening ◽  
High Temperature Oxidation ◽  
Growth Stress ◽  
Thermal Barrier ◽  
Temperature Oxidation ◽  
Barrier Coatings ◽  
Oxidation Growth

A two-dimensional platform phase field model is founded to apply in the Fe-Cr-Al-Y alloy with crack and zirconium diboride ceramic as thermal barrier coatings treated by shot peening. This modal is used to simulate the oxidation growth stress distribution in the platform. The high temperature oxidation resistance and crack propagation of this composite are studied in the numerical simulation. The results show the characteristics of fracture and oxidation resistance properties of the alloy dealt with these promoted technology. The effects of thickness of ceramic layer, surface residual stress by shot peening and direction of crack on oxidation growth stress distribution are also investigated. In this paper, maximum stress is founded linear to the ceramic layer. The suitable thickness of the crack layer and the appropriate intensity of shot peening should be chosen, and the direction of the crack makes a big difference in stress distribution. The study provides a new powerful tool for the simulation of shot-peening process.

Evaluation of TGO growth in thermal barrier coatings using impedance spectroscopy

Rare Metals ◽  
2011 ◽  
Vol 30 (S1) ◽  
pp. 643-646 ◽  
Author(s):  
Hui Huang ◽  
Chao Liu ◽  
Liyong Ni ◽  
Chungen Zhou
Keyword(s):  
Impedance Spectroscopy ◽  
Thermal Barrier Coatings ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Tgo Growth

Isothermal oxidation and TGO growth behavior of NiCoCrAlY-YSZ thermal barrier coatings on a Ni-based superalloy

2020 ◽  
Vol 844 ◽  
pp. 156093
Author(s):  
Jiaqi Shi ◽  
Tiebang Zhang ◽  
Bing Sun ◽  
Bing Wang ◽  
Xuhu Zhang ◽  
...  
Keyword(s):  
Thermal Barrier Coatings ◽  
Isothermal Oxidation ◽  
Growth Behavior ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
Tgo Growth
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