表面处理对液固复合铜合金/球墨铸铁双金属界面结合性能的影响  

Effect of Surface Treatment on the Bonding Performance of Liquid Solid Composite Copper Alloy/Ductile Iron Bimetallic Interface

作　　者：姚鹏鹏 尹延国[1] 方小亮 YAO Peng-peng;YIN Yan-guo;FANG Xiao-liang(School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]合肥工业大学机械工程学院,安徽合肥230009

出　　处：《铸造》2024年第12期1659-1666,共8页Foundry

摘　　要：结合性能是铜/球墨铸铁双金属能否在恶劣条件下使用的关键因素。本文采用不同的球墨铸铁表面处理方式制备了铜/球墨铸铁双金属。通过SEM和EDS等对结合处显微组织进行微观组织和元素分析,并开展相应力学性能检测与分析。结果表明,正火工艺可以减少或者除去球墨铸铁表面的石墨颗粒,熔铸过程使得熔化的铜液可以渗透进入石墨凹槽内,增加了双金属界面性能,界面结合强度提高。The bonding performance is a key factor in whether copper/ductile iron bimetallic materials can be used under harsh conditions.This article uses different surface treatment methods to prepare copper/ductile iron bimetallic materials.Perform microstructure and elemental analysis of the joint microstructure through SEM,EDS,etc.,and carry out corresponding mechanical property testing and analysis.The results indicate that the normalizing process can reduce or remove graphite particles on the surface of ductile iron.The melting process allows molten copper to penetrate into the graphite grooves,increasing the bimetallic interface performance and enhancing the interface bonding strength.

关 键 词：铅青铜 球墨铸铁 双金属 液固复合 界面性能 

分 类 号：TG17[金属学及工艺—金属表面处理] TG255[金属学及工艺—金属学]