Abstract
Thermal stress in the fabrication process of thermal barrier coating system (TBCs) has a significant effect on the quality of TBCs and the durability of gas turbine. In this work, a new analytical model was developed to calculate the thermal stress during the fabrication process of TBCs. Variations of the material properties with temperature of TBCs were well considered in the present model. Several spraying factors: such as pre-heating temperature, cold gas dynamic spraying (CGDS) method, thickness of top coating and thickness of substrate, which has significant effects on thermal stress generation, are also discussed in this work.
| Original language | English |
|---|---|
| Pages (from-to) | 1390-1415 |
| Number of pages | 26 |
| Journal | Journal of Thermal Stresses |
| Volume | 37 |
| Issue number | 12 |
| Early online date | 25 Aug 2014 |
| DOIs | |
| Publication status | Published - 2014 |
| Externally published | Yes |
Bibliographical note
The authors gratefully acknowledge the support of China 973 program (2013CB035701) and NSFC (11321062). XC is supported by NSFC (11172231), DARPA (W91CRB-11-C-0112), and the NSF (CMMI-0643726).Keywords
- Coating
- Cold gas dynamic spraying
- Fabrication process
- TBC
- Thermal stress