在AZ91D表面SHS反应热喷涂Al-CuO系Al_2O_3基复相陶瓷涂层  

Al_2O_3-based multiphase ceramic coating of Al-CuO system prepared by SHS reaction thermal spraying on AZ91D

作　　者：马壮[1] 林鹏[1] 董世知[1] 李智超[1] 

机构地区：[1]辽宁工程技术大学材料科学与工程学院,阜新123000

出　　处：《中国有色金属学报》2009年第8期1379-1384,共6页The Chinese Journal of Nonferrous Metals

基　　金：辽宁省自然科学基金资助项目(20062203)

摘　　要：采用SHS反应火焰喷涂技术,把Al-CuO系铝热剂引入到喷涂材料中,在AZ91D表面制备了Al2O3基复相陶瓷涂层。结果表明:SHS反应热喷涂层综合性能明显优于传统热喷涂层,传统热喷涂层的热震次数、开气孔率、耐蚀性和耐磨性分别为14次、17.4%、基体的24倍和8.5倍;而反应热喷涂层则分别为40次、15.2%、基体的37倍和10.6倍。若辅以Ni-Al合金打底,喷后重熔工艺可使反应喷涂层的综合性能进一步提高。With SHS reaction flame spraying, Al2O3-based multiphase ceramic coating was prepared on AZ91D by introducing A1-CuO thermite into spraying materials. The results indicate that＇, the comprehensive properties of reaction spraying coatings are better than those of traditional ones. The thermal-shock times of traditional spraying coating is 14, the open porosity is 17.4%, the corrosion resistance and wear resistance are 24 and 8.5 times of those of the substrate, respectively, while those of the reaction ones are 40, 15.2%, 37 and 10.6, respectively. If adding Ni-A1 alloy as the render and remelting after spraying, the comprehensive properties of reaction spraying coatings can be improved further.

关 键 词：AZ91D镁合金 SHS反应热喷涂 陶瓷涂层 

分 类 号：TG148[一般工业技术—材料科学与工程]