熔盐热腐蚀对纳米热障涂层性能影响分析  

Effect of Molten Salt Hot Corrosion on the Performance of Nano Thermal Barrier Coatings

作　　者：常羽彤[1] 王建[1] 朱石刚[1] 王斌利 刘建明[3] CHANG Yu-tong;WANG Jian;ZHU Shi-gang;WANG Bin-li;LIU Jian-ming(Military Representative Office of PLA 430 factory,Xi’an 710000,China;AECC Xian Aero Engine Corporation,Xi’an 710000,China;Beijing General Research Institute of Mining and Metallurgy,Beijing 100160,China)

机构地区：[1]中国人民解放军驻430厂军事代表室,西安710000 [2]中国航发西安航空发动机有限公司研制中心,西安710000 [3]北京矿冶研究总院,北京100160

出　　处：《热喷涂技术》2017年第1期24-28,共5页Thermal Spray Technology

摘　　要：对采用热喷涂技术制备的热障涂层,在试样陶瓷表面刷涂定量配置的75%Na_2SO_4-25%NaCl饱和溶液进行热腐蚀试验,对试样采用SEM、EDS和XRD等方法进行分析,结果表明:粘结层、热生长氧化物(TGO)层以及基体等均受到不同程度的热腐蚀影响,陶瓷面层相结构未发生转变,但对于稳定性能有一定的影响,熔盐热腐蚀破坏涂层的完整性,腐蚀对NiCrAlY和基体的影响最大。In this paper,the thermal corrosion tests of the thermal barrier coatings prepared by thermal sprayingwere carried out on the surface of the samples by75%Na2SO4-25%NaCl saturated solution.The samples wereanalyzed by SEM,EDS and XRD.The results showed that the growth of oxide layer,thermal bonding(TGO)layer and the substrate were affected by the hot corrosion of different degrees of impact,the ceramic surface layerstructure did not change,but there was a certain influence on the stability.Molten salt hot corrosion damaged tothe integrity of the coating and corrosion had the greatest influence on NiCrAlY and substrate.

关 键 词：热喷涂 纳米材料 热障涂层 熔盐热腐蚀 热生长氧化物(TGO) 

分 类 号：TG174.4[金属学及工艺—金属表面处理]