梯度热障涂层服役条件下的蠕变响应分析  

Creep Analysis of Functionally Graded Thermal Barrier Coating in Working Environment

作　　者：王建平[1] 

机构地区：[1]贵州民族学院建筑工程系,贵阳550025

出　　处：《武汉理工大学学报》2007年第11期31-34,共4页Journal of Wuhan University of Technology

摘　　要：利用数值方法研究了陶瓷/金属梯度功能热障涂层在服役条件下的热-力响应,同时考虑了梯度功能热障涂层各层的蠕变现象,数值研究表明在对梯度功能热障涂层进行热-力响应分析过程中,材料的蠕变现象是不能够忽略的,即使该层材料是富陶瓷材料。In this article, the thermo-mechanical responses of ceramic/metal functionally graded thermal barrier coating in work environment were analyzed by a finite element method. The creep phenomenon of the metal and the interlayer were taken into account. The numerical results indicated that the creep behavior of all interlayer, even for the ceramic-rich interlayer, coul＆a＇ t be neglected in analysis. It was suggested that the creep phenomenon of the material was important in the functionally graded thermal barrier coating systems.

关 键 词：蠕变 热障涂层 梯度功能材料 有限元 

分 类 号：TG174.453[金属学及工艺—金属表面处理]