霉菌对直升机机体金属材料2A12力学性能影响  

Effect of Fungus on Mechanics Performance of Helicopter Airframe Metal Material 2A12

作　　者：门坤发 刘志芳[1] 马战奇 尚晓冬[1] 

机构地区：[1]中航工业哈尔滨飞机工业集团有限责任公司飞机设计研究所,哈尔滨150066

出　　处：《南京航空航天大学学报》2015年第2期304-307,共4页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：2A12铝合金已经广泛应用于直升机机体结构当中,霉菌腐蚀是其主要腐蚀源之一,对其强度造成很大影响。按照装机状态对2A12表面进行防护处理后制造试片,对比霉菌腐蚀和未霉菌腐蚀两种状态下静力和疲劳两种力学性能。试验结果表明,霉菌腐蚀对表面防护的2A12静力和疲劳性能没有明显的影响。The metal material 2A12 has been comprehensively applied in helicopter airframe,and the fun- gus corrosion is one of main corrosion sources affecting the metal strength mechanics performance. Test specimens are prepared according to the real surface protection condition of the helicopter. The static and fatigue strength of 2A12 is compared under fungus corrosion and no fungus corrosion. The results show that the fungus corrosion has no evident effect on the 2A12 static and fatigue strength.

关 键 词：2A12 霉菌 静力 疲劳 

分 类 号：V216[航空宇航科学与技术—航空宇航推进理论与工程]