期刊
JOURNAL OF THERMAL SPRAY TECHNOLOGY
卷 19, 期 5, 页码 1054-1061出版社
SPRINGER
DOI: 10.1007/s11666-010-9512-1
关键词
finite element model; residual stresses; thermal barrier coatings system
资金
- European Social Fund
- Limousin Region
This work is focused on the effect of the residual stresses resulting from the coating process and thermal cycling on the failure mechanisms within the thermal barrier coating (TBC) system. To reach this objective, we studied the effect of the substrate preheating and cooling rate on the coating process conditions. A new thermomechanical finite element model (FEM) considering a nonhomogeneous temperature distribution has been developed. In the results, we observed a critical stress corresponding to a low substrate temperature and high cooling rate during spraying of the top-coat material. Moreover, the analysis of the stress distribution after service shows that more critical stresses are obtained in the case where residual stresses are taken into account.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据