纳米WC与CeO_2对陶瓷涂层组织和性能的影响  

Effect of Nanometer WC and CeO_2 Powder on the Structure and Properties of Ceramic Coating

作　　者：国洪建[1] 李建国[1] 巩天浩[1] 冀静[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《表面技术》2008年第6期39-40,50,共3页Surface Technology

基　　金：教育部春晖计划项目(Z2004-1-15004)

摘　　要：以水轮机叶片的工作条件为背景,将纳米CeO2与纳米WC添加到Fe-WC金属陶瓷喷涂材料中,采用等离子喷涂方法制备涂层。对涂层进行显微组织分析及耐磨性和结合强度等试验,探讨纳米CeO2和纳米WC对喷涂层组织、耐磨性及结合强度的影响,以便制备性能优良的喷涂层用于水轮机叶片的保护,结果表明:将适量的纳米CeO2与纳米WC粉末添加到Fe-WC涂层中,可以改善喷涂层的组织,提高喷涂层的结合强度、耐磨性。In the background of work condition of water turbine, the nanometer CeO2 and nanometer WC powder were added into metal-ceramic coating materials, the composite coating was manufactured by the plasma spraying. The microstructure, wear resistance, adhesion strength of the coating were studied, the influence of the nanometer CeO2 and nanometer WC powders on the composite coating were researched, with a view to making high-performance thermal spraying coating for the protection for water turbine. The result shows that with suitable addition of the nanometer CeO2 and nanometer WC powder in the metal-ceramic coating, the microstructure of the spraying coating can be refined, the adhesion strength and wear resistance of the coating can be increased.

关 键 词：金属-陶瓷涂层 显微组织 耐磨性 结合强度 

分 类 号：TG174.453[金属学及工艺—金属表面处理]