Modeling Study on Stress Distribution as Effects of Temperature and TGO Thickness in ScYSZ/NiCrAlY TBCs System

作     者：Liu Huaifei1,2,Li Qilian2,Li Songlin1,Li Yongming1 1State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China 2National Key Laboratory of Science and Technology on Power Beam Process,Beijing Aeronautical Manufacturing Technology Research Institute,Beijing 100024,China 

作者机构：Cent S Univ State Key Lab Powder Met Changsha 410083 Peoples R China Beijing Aeronaut Mfg Technol Res Inst Natl Key Lab Sci & Technol Power Beam Proc Beijing 100024 Peoples R China 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2011年第40卷第S4期

页      面：164-168页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Foundation item:Program for New Century Excellent Talents in University(NCET-2006) Hunan Provincial Natural Science Foundation(10JJ2037) 

主　　题：Sc2O3-Y2O3-ZrO2 thermal barrier coating stress analysis finite element TGO 

摘      要：The effects of oxidation temperature and thickness of thermally grown oxide (TGO) on thermal stress distribution in thermal barrier coatings (TBCs) system are studied in the present paper.A typical TBC system is used:air plasma sprayed (APS) Scandia,yttria-stabilized zirconia (ScYSZ) top coat (TC) and NiCrAlY bond coat (BC) deposited on the nickel super-alloy *** behavior of BC oxidation was *** the Numerical model and Finite Element (FE) method were used to analyze the stress *** objective of this study is to provide important information for understanding the failure mechanism of TBCs at least in a qualitative way.