摘要
采用有限元分析软件ANSYS对2Cr13基体等离子喷涂Sm2Zr2O7/YSZ双层热障涂层界面残余热应力分布进行了仿真。结果表明:在涂层Sm2Zr2O7/YSZ及YSZ/NiCoCrAlY界面存在较大的残余热应力,且应力梯度基本不变,表明应力梯度与基体厚度、半径无关。
The distribution of residual thermal stresses at the interface of plasma sprayed Sm2Zr2O7/YSZdouble-layer thermal barrier coatings on 2Cr13 substrates were simulated by using ANSYS software. Results show that higher residual thermal stresses exist in theSm2Zr2O7/YSZ layer interface and the YSZE NJCoCrAIY layer interface, and the stress gradient is basically unchanged. It is also indicated that the stress gradient is independent of Matrix thickness and radius.
出处
《陶瓷学报》
CAS
北大核心
2012年第3期304-309,共6页
Journal of Ceramics
关键词
双层热障涂层
有限元数值仿真
涂层界面
残余热应力
应力梯度
double-layer thermal barrier coatings
finite element
numerical simulation
coating interface
residual thermalstress
stress gradient
