球墨铸铁表面改性技术及其耐磨涂层研究现状  

Research Status of Surface Modification Technology and Wear Resistant Coating of Nodular Cast Iron

作　　者：闫雪芳 向军淮[1] 胡敏 肖伯涛[1,2] YAN Xue-fang;XIANG Jun-huai;HU Min;XIAO Bo-tao(Jiangxi Key Laboratory of Material Surface Engineering,Jiangxi Normal University of Science and Technology,Nanchang Jiangxi 330013,China;State Key Laboratory of Material Forming and Die Technology,Huazhong University of Science and Technology,Wuhan Hubei 430074,China)

机构地区：[1]江西科技师范大学江西省材料表面工程重点实验室,江西南昌330013 [2]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《热处理技术与装备》2022年第1期41-47,共7页Heat Treatment Technology and Equipment

基　　金：国家自然科学基金(51865014);材料成形与模具技术国家重点实验室开放基金资助项目(P2019-012)。

摘　　要：球墨铸铁表面处理常用的方法包括热喷涂、堆焊、激光熔覆及等离子束合金化等,利用这些方法可以在球墨铸铁表面制备出润湿性好、硬度高、耐磨性能优异的铁基、镍基、钴基以及陶瓷增强涂层,其耐磨作用机制可归结为第二相强化、细晶强化和固溶强化等共同作用的结果。The methods with thermal spraying, surfacing, laser cladding and plasma beam alloying are commonly used to fabricate cladding layer or alloy coating on the surface of nodular cast iron. Then the iron-based, nickel-based, cobalt-based and ceramic reinforced coatings with good wettability, high hardness and excellent wear resistance can be prepared. The mechanism of wear resistance can be attributed to the compound strengthening of the second phase, refine grain and solid solution strengthening.

关 键 词：球墨铸铁 耐磨性 表面改性 合金化 熔覆 

分 类 号：TG164.2[金属学及工艺—热处理]