Zn,Al合金涂层在膨润土中的加速腐蚀实验研究  

Study on Accelerated Corrosion Experiments of Zn,Al Alloy Coatings in Bentonite

作　　者：楼淼[1] 芦玉峰[1] 周萌[1] 秋实[1] 卢飞[1] 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《表面技术》2013年第5期32-34,41,共4页Surface Technology

摘　　要：采用高速电弧喷涂技术在16MnR钢基体上制备Zn,Al合金涂层,针对其实际应用环境,设计并通过模拟洞室膨润土填埋环境的加速腐蚀实验对涂层的耐腐蚀性能进行研究。结果表明:随着加速腐蚀时间的延长,Zn,Al系合金涂层的腐蚀速率降低;Zn,Al系合金涂层对16MnR钢的防护作用明显,起到了牺牲阳极的阴极保护作用;与Zn涂层和Zn-Al合金涂层相比,Al涂层表现出较优的耐腐蚀性能。Zn, Al alloy coatings were prepared by high velocity arc spraying technology on 16MnR steel substrates. With the design accelerated corrosion test, the corrosion resistance of the Zn, Al alloy coating in the bentonite of grotto environment was studied. The results show that prolong time of the accelerated corrosion test, the corrosion rate of the Zn, Al alloy coating descend. The Zn ,Al coatings actes as the sacrificial anode protecting the 16MnR steel substrate and prominence of corrosion resistance. Al coating corrosion resistance is better than others on 16MnR steel.

关 键 词：Zn合金涂层 Al合金涂层 膨润土 加速腐蚀实验 耐腐蚀性 

分 类 号：TG172.4[金属学及工艺—金属表面处理]