热化学反应法制备Al_2O_3基陶瓷涂层的组织与性能  

Microstructure and Properties of Al_2O_3 Matrix Ceramic Coating Prepared by Thermo Chemical Reaction

作　　者：张媛[1] 周小飞[2] 

机构地区：[1]重庆工程职业技术学院矿业与环境工程学院,重庆402260 [2]四川大学材料科学与工程学院,四川成都610000

出　　处：《铸造技术》2016年第6期1104-1106,共3页Foundry Technology

摘　　要：采用热化学法在1Cr18Ni9钢表面制备Al_2O_3基陶瓷涂层,利用SEM、EDS等微观分析仪器研究了结合层的微观形貌、成分及组织结构,利用浸泡腐蚀实验检测了涂层的耐蚀性。结果表明,涂层致密均匀,与基体发生了化学反应,陶瓷涂层的存在有效的提高了1Cr18Ni9钢的抗酸、碱腐蚀能力。The protective Al2O3 matrix ceramic coatings on the surface of 1Cr18Ni9 steel are prepared by thermo chemical reaction. The micro morphology, composition and structure of the combination layers were studied using SEM and EDS microanalysis instrument, and the corrosion resistance of the coating was tested by immersion corrosion experiments. The results show that the coating is dense and uniform, and there are chemical reaction between the ceramic coating and the matrix. And the existence of ceramic coating can effectively improve the corrosion resistance of 1Cr18Ni9 steel in acid and alkali.

关 键 词：1CR18NI9钢 热化学反应法 陶瓷涂层 耐蚀性 

分 类 号：TG174.45[金属学及工艺—金属表面处理]