Influence of Single Layer-Thickness on Residual Thermal Stresses in Sm2Zr2O7/YSZ Thermal Barrier Coatings

摘要：

　　In this paper,influence of single-layer thickness on residual stresses in Sm2Zr2O7/YSZ thermal barrier coating was analyzed by finite element method.Results show that the radial stress remains stable in x range 0-12mm,and it decreases abruptly at edge of the sample.The distribution of axial stress resembles that of radial stress,the shear stress increase abruptly at edge of sample.In three typical residual stresses,radial stress has the highest value,axial stress and shear stress can be ignored.The best thickness combination of Sm2Zr2O7/YSZ TBCs should be 0.1mm-NiCoCrAtY layer,0.05-0.1 mm-TGO,0.1 mm-YSZ and 0.9mm-Sm2Zr2O7

关键词： Thermal barrier coatings Residual thermal stresses Layer thickness Finite element

作者: Hu Renxi Chen Xiaoge Li Gang

作者单位: Mechanic Design Teaching and Research Section,Ordnance Engineering College,Shijiazhuang 050003,China Department of Construction Engineering,Henan Institute of Engineering,Zhengzhou 451191,China Department of Mechanical Engineering,Henan Institute of Engineering,Zhengzhou 451191,China

会议类型: 国际会议

会议名称: 2012 Workshop on Inorganic Thin Films and Coatings (2012年无机薄膜与涂层学术研讨会)

会议地点: 桂林

会议语种:英文

页码: 97-100

在线出版日期: 2012-07-16（万方平台首次上网日期，不代表论文的发表时间）