Effect of C/Mo Duplex-coating on Thermal Residual Stresses in SiCf/Ti2AlNb Composites

作     者：ZHU Tangkui WANG Degui LUO Xian 朱堂葵;WANG Degui;罗贤

作者机构：School of Electromechanical and Information TechnologyYiwu Industrial and Commercial CollegeYiwu 322000China School of Materials ScienceNorthwestern Polytechnical UniversityXi'an 710072China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2021年第36卷第4期

页      面：526-532页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funded by the National Natural Science Foundation of China (No. 51201134) the Key Research Foundation of Yiwu Industrial and Commercial College (No. ZD2020CS414-01) 

主　　题：finite element simulation titanium matrix composite SiC fiber thermal residual stress 

摘      要：Three-dimensional finite element physical models considering the layered distribution of materials at the interface were developed to study the effect of the coating system on distributions of thermal residual stresses in SiCf/Ti2AlNb *** coating systems were comparatively studied,namely C coating and C/Mo *** thermal residual stresses after 1 080 ℃/1 h solution treatment and 800 ℃/20 h ageing treatment in the composites were also *** experimental results show that Mo coating can decrease thermal residual stress magnitude in the ***,it would increase the thermal residual stresses in the interfacial reaction layer of *** change of radial thermal residual stress in TiC layer is inconspicuous after solid solution and ageing treatment,but the hoop and axial thermal residual stresses increase ***,the heat treatment can obviously reduce hoop and axial thermal residual stresses of the matrix,which is benefit to restrain the initiation and propagation of cracks in the matrix.