江西科学2023，Vol.41Issue(6)：1153-1157,1197,6.DOI:10.13990/j.issn1001-3679.2023.06.021
INCONEL625-KN680复合涂层的性能研究
Study of Inconel 625-KN680 Composite Coating
摘要
Abstract
Aiming at the problem that the heating surface of waste incineration boiler is easy to be ox-idized at high temperature and corroded by chlorine,sulfur,vanadium and molten salt,the IN-CONEL625-KN680 composite coating with metal and ceramic properties was successfully prepared on the surface of the boiler matrix by supersonic flame spraying technology and airless spraying tech-nology.The microstructure of the composite coating was characterized.The bonding strength,sur-face hardness,wear resistance at normal temperature and high temperature,corrosion properties of molten salt at high temperature and friction coefficient of the composite coating were tested and ana-lyzed.The results show that the binding strength of the composite coating is 65 MPa,the surface hardness is 73.4HR15N,the erosion resistance of the composite coating is 7～8 times that of the boiler substrate,and the high temperature wear resistance of the composite coating is increased by 10%～20%compared with that of the boiler substrate.All the performance indexes are obviously better than that of the boiler substrate,and the service life of the boiler is greatly improved.关键词
超音速火焰喷涂/INCONEL625 粉末/KN680 陶瓷浆料/涂层性能分析测试Key words
HVOF/INCONEL625 powder/KN680 ceramic slurry/coating performance analysis test分类
矿业与冶金引用本文复制引用
邱伊健,姚孝寒,熊剑,杨卿远,丁豹..INCONEL625-KN680复合涂层的性能研究[J].江西科学,2023,41(6):1153-1157,1197,6.基金项目
江西省科学院包干制项目基金(2021YSBG22005). （2021YSBG22005）
