界面摩擦对热障涂层压痕响应的影响  

Effects of Interface Friction on the Indentation Response of Thermal Barrier Coatings

作　　者：胡涛涛[1] 胡兵兵 苗壮[1] 田弋纬[1] 王朋伟[1] 许飞[1] 

机构地区：[1]西北有色金属研究院,西安710016 [2]西安筑路机械有限公司,西安710200

出　　处：《材料导报（纳米与新材料专辑）》2011年第2期285-287,296,共4页

摘　　要：以四层结构的热胀涂层薄膜/基体材料为基础,利用有限元建立模型分析了界面摩擦对压痕响应的影响。分析表明,考虑界面摩擦情况下,随着摩擦系数的增大,压痕响应越趋近于完全结合时的压痕响应;水平方向的最大位移值随着摩擦系数的增大也逐渐增大。界面光滑接触时接触界面力学响应可以忽略。The effects of interface friction on the indentation response of thermal barrier coatings was analyzed by finite element model （FEM） based on the coating and multi-layer, substrate material. The results show that with the friction coefficient increasing, the indentation response of the system with the interface friction approach to that of the fully integrated system in the form Of the interface friction , along horizontal direction the greatest amount of displacement increases as the friction coefficient gradually increases. The response of the contact mechanics of the smooth interface can be ignored.

关 键 词：热障涂层 压痕 有限元分析 

分 类 号：TU472.34[建筑科学—结构工程]