海洋工程镁铝复合牺牲阳极铸造工艺及电化学性能测试  

Casting Technique and Electro-Chemical Properties of Mg-AI Composite Sacrificial Anode Used in Ocean Engineering

作　　者：兰志刚[1] 宋积文[1] 刘欣[2] 

机构地区：[1]中海油能源发展股份有限公司北京分公司,北京100027 [2]中国科学院海洋研究所,青岛266071

出　　处：《中国造船》2011年第A02期459-464,共6页Shipbuilding of China

摘　　要：为了在海洋工程阴极保护初期提供较大的保护电流，提出了使用镁铝复合牺牲阳极的方法，并设计、加工了小型复合牺牲阳极，解决了界面熔合的问题。通过测试认为该复合牺牲阳极性能良好，为下一步工程应用奠定了基础。Mg-Al composite sacrificial anode is studied in order to provide offshore structure with greater initial cathodic protection current at its polarizing stage. A miniature Mg-Al composite sacrificial anode is designed, processed and casted. The difficulty in metal fusion at the interface of magnesium and aluminum is overcome with a special casting technique. Electrochemical property test shows a good performance of the composite sacrificial anode, which laid a solid foundation for its engineering application in future.

关 键 词：电化学性能 铝镁复合牺牲阳极 阴极保护 铸造技术 海洋构筑物 

分 类 号：TG174.41[金属学及工艺—金属表面处理]