Ni含量对无铅硅黄铜耐脱锌腐蚀性能的影响  

Effect of Ni Content on Dezincification Resistance of Lead-free Silicon Brass

作　　者：汪盼 周永欣[1] 吕振林[1] WANG Pan, ZHOU Yongxin, LYU Zhenlin(School of Materials Science and Engineering, Xi＇an University of Technology, Xi＇an 710048, China)

机构地区：[1]西安理工大学材料科学与工程学院,陕西西安710048

出　　处：《铸造技术》2018年第10期2164-2166,2175,共4页Foundry Technology

基　　金：国家自然基金(51875453);国家自然科学基金青年项目(51601143)

摘　　要：传统黄铜中含有对人体和环境有害的Pb元素,选用无毒价廉的Si取代Pb,并添加一定量的Ni,采用熔铸法制备环境友好型无铅硅黄铜。借助OM、XRD及EDS等设备,研究不同Ni含量对无铅硅黄铜耐脱锌腐蚀性能的影响,并与传统铅黄铜HPb59-1进行比较。结果表明,在硅黄铜中添加Ni元素可以明显改善黄铜的耐脱锌腐蚀性能,Ni含量为0.3%时,合金的耐脱锌腐蚀性能最好。The traditional brass contains Pb elements harmful to human body and environment, adopts the non-toxic and cheap Si to replace Pb, and adds a certain amount of Ni, the environment-friendly lead-free silicon brass was prepared by the melting casting. By means of OM, XRD and EDS equipment, the effects of different Ni contents on the dezincification resistance of lead-free silicon brass were studied, and compared with traditional lead brass HPb59-1. The results show that adding Ni to silicon brass can significantly improve the dezincification corrosion resistance of brass.

关 键 词：硅黄铜 镍元素 脱锌腐蚀 腐蚀机理 

分 类 号：TG178.2[金属学及工艺—金属表面处理]