严酷环境下飞机典型结构异种材料电偶腐蚀特点与防护对策  

Behaviours and Protective Measures of Galvanic Corrosion on Dissimilar Materials of Typical Aircraft Structure in Harsh Environment

作　　者：史洪微[1] 崔常京[2] 韦涛[1] 陈群志[2] 刘福春[1] 韩恩厚[1] SHI Hong-wei;CUI Chang-jing;WEI Tao;CHEN Qun-zhi;LIU Fu-chun;HAN En-hou(Key Laboratory of Nuclear Materials and Safety Assessment,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Beijing Aeronautical Technology Research Center,Beijing 100076,China)

机构地区：[1]中国科学院金属研究所中国科学院核用材料与安全评价重点实验室,沈阳110016 [2]北京航空工程技术研究中心,北京100076

出　　处：《装备环境工程》2020年第5期52-57,共6页Equipment Environmental Engineering

基　　金：国家自然科学基金(51571202)。

摘　　要：介绍了电偶腐蚀的原理,以飞机结构上容易出现的三种电偶腐蚀(碳纤维增强环氧复合材料-铝合金、钛合金-铝合金、铝合金-不锈钢)为例,对目前关于这三种电偶腐蚀的研究进行了综述,分析了电偶腐蚀的环境影响因素,综述了耦合材料的失效特点和形式,探讨了利用阻隔、涂层和缓蚀剂等手段减缓和防止电偶的防护措施,指出利用微区测试技术、联合多种研究手段和复合环境因素在研究电偶腐蚀方面的重要性。在多因素条件下,设计模拟耦合件的试验,有利于模拟实际工况的特征。This paper introduced the mechanism of galvanic corrosion. The study on three typical types of galvanic corrosion prone to happen in aircraft structure(carbon fiber reinforced epoxy composite-aluminium alloy, titanium alloy-aluminium alloy, aluminium alloy-stainless steel) was reviewed. The influence of environmental factors on galvanic corrosion was analyzed and the failure characteristics and behaviors of coupling materials were given. The protective measures for mitigation of galvanic corrosion, such as separation, coatings and inhibitors were reviewed. The use of micro-zone techniques, the combination of multi-methods and the consideration of environmental factors are important to research galvanic corrosion. Under multi-factors, the design of simulated galvanic components is beneficial to simulate the actual working conditions.

关 键 词：电偶腐蚀 电偶电流 铝合金 防护措施 

分 类 号：TG172[金属学及工艺—金属表面处理]