Effect of different heat transfer coefficients on the performance of thermal barrier coatings under thermo-mechanical couple process

LI Zhi-yong; BAO Rui; ZHANG Jian-yu; HU Hao-ju; FEI Bin-jun

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Effect of different heat transfer coefficients on the performance of thermal barrier coatings under thermo-mechanical couple process

更新时间：2026-07-07

- Effect of different heat transfer coefficients on the performance of thermal barrier coatings under thermo-mechanical couple process
- Vol. 23, Issue 5, (2008)
- 作者机构：
  
  北京航空航天大学航空科学与工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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LI Zhi-yong, BAO Rui, ZHANG Jian-yu, et al. Effect of different heat transfer coefficients on the performance of thermal barrier coatings under thermo-mechanical couple process[J]. 2008, 23(5).
DOI：

LI Zhi-yong, BAO Rui, ZHANG Jian-yu, et al. Effect of different heat transfer coefficients on the performance of thermal barrier coatings under thermo-mechanical couple process[J]. 2008, 23(5). DOI：

摘要

通过有限元计算分析了热机耦合作用下的热障涂层不同的内壁换热系数对涂层系统隔热效果和应力分布的影响

为选择合适的内壁换热系数提供了参考作用.计算结果表明:随着内壁换热系数的增加模型中的温度随之降低

内外壁的温差以非线性曲线的形式增加;在热氧化生成层附近产生了较大的应力

并且主应力值随着换热系数的增加而增大.

Abstract

The heat insulation and stress distribution in thermal barrier coatings(TBCs) with different inner wall heat transfer coefficients were studied via finite element method(FEM)

laying a foundation for the selection of heat transfer coefficients.The results show that

the temperature of model decreases with the increase of the inner wall heat transfer coefficients

meanwhile

the temperature difference between inner and outer walls increases non-linearly.The maximum stress occurs near the thermally grown oxide(TGO) layer

and its value increases with the increase of heat transfer coefficients.

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