300M钢表面金属陶瓷涂层的制备工艺及性能研究  

Performance of Metallic-Ceramic Anti-corrosion Coating for Surface Protection of 300M Steel

作　　者：冯抗屯 肖细军 陈小虎[2] 魏东博[2] 魏祥飞[2] 张平则[2] 

机构地区：[1]中航飞机股份有限公司长沙起落架分公司制造工程部,长沙410200 [2]南京航空航天大学材料科学与技术学院,南京211106

出　　处：《南京航空航天大学学报》2015年第5期687-695,共9页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：为推进金属陶瓷涂层在飞机起落架表面防护技术中更广泛的应用,制备了IPcote 9183和IPcote 9184两种金属陶瓷涂层并进行了微观组织、力学性能和防腐性能的研究,同时与传统电镀镉钛涂层进行了对比分析。结果表明,IPcote 9183和IPcote 9184金属陶瓷涂层的最佳制备工艺分别为三次喷涂三次表干以及一次固化(三喷三表一固),两次喷涂两次表干以及一次固化(两喷两表一固);与传统电镀镉钛相比,两种金属陶瓷涂层具有良好的综合力学性能;IPcote 9184涂层硬度最高,是IPcote 9183涂层的7倍,电镀镉钛涂层的4倍;IPcote 9183弹性模量最好,IPcote 9184次之,电镀涂层最差;IPcote 9183的结合强度是电镀层的4倍。电镀镉钛试样和IPcote 9184,9183共同涂覆的试样表面在720h中性盐雾试验中未出现明显的锈蚀痕迹。In order to promote the application of metal-ceramic composite for surface protection techniques of the aircraft landing gear,the microstructure,mechanical property and corrosion resistance of metallicceramic anti-corrosion coating are studied,and those of the cadmium titanium plating are also analyzed as comparisons.The IPcote 9183 and IPcote 9184 are prepared on the 300 Msteel by the new technological process named″three-time-spraying—three-time-drying—one-time-solidifying″and″two-time-spraying—two-time-drying— one-time-solidifying″,respectivly.In contrast with the cadmium titanium plating,two kinds of metal ceramic composite possess good comprehensive mechanical properties,and have better adhesion with the 300 Msteel.The hardness of the IPcote 9184 coating is the highest,which is as seven times as that of the IPcote 9183 coating and four times as that of the cadmium titanium plating.The modulus of the IPcote 9183 coating is the highest,while that of the cadmium titanium plating is the lowest.The adhesive strength of the IPcote 9183 coating,IPcote 9184 coating and the cadmium titanium plating is 48.7,15.06 and 11.82 MPa,separately.There is no excessive corrosion on the cadmium titanium plating and the IPcote 9184,9183 in the neutral salt spray（NSS）test coating for 720 h.

关 键 词：金属陶瓷防腐涂层 喷涂 力学性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]