舰载机服役环境中微生物的提取及其对7B04铝合金腐蚀行为的影响  

Extraction of Microorganism from Shipborne Aircraft Service Environment and Its Effect on Corrosion Behavior of 7B04 Aluminum Alloy

作　　者：周振华 葛心如 王萧笛 王帅 李岩 单柏荣 赵晓栋 ZHOU Zhenhua;GE Xinru;WANG Xiaodi;WANG Shuai;LI Yan;SHAN Borong;ZHAO Xiaodong(Yantai University,Yantai Shandong 264005,China;Naval Aviation University,Qingdao Shandong 266041,China)

机构地区：[1]烟台大学,山东烟台264005 [2]海军航空大学,山东青岛266041

出　　处：《海军航空大学学报》2022年第6期437-447,共11页Journal of Naval Aviation University

基　　金：国家自然科学基金(52101392);山东省自然科学基金(ZR2020QD081,ZR2021QD060);大学生创新训练项目(YD2021030)。

摘　　要：舰载机服役环境恶劣,容易遭受微生物腐蚀。从舰载机油箱和电子元件材料腐蚀产物中取样,进行微生物的分离、提取与鉴定,筛选出7种典型菌株。通过开路电位(OCP)、电化学阻抗谱(EIS)和动电位极化曲线等电化学测试,初步研究了其中3种菌对7B04铝合金腐蚀行为的影响。试验结果表明,假丝酵母菌对7B04铝合金腐蚀有抑制作用,而鲁氏不动杆菌和副干酪乳酸菌具有促进腐蚀的作用。Shipborne aircraft are vulnerable to microbial corrosion due to the harsh service environment. Microorganisms are isolated, extracted and identified, and seven typical strains are screened from the corrosion products of shipborne aircraft fuel tank and electronic component materials. The effect of three kinds of bacteria on the corrosion behavior of 7B04 aluminum alloy is studied by electrochemical measurements such as open circuit potential(OCP), electrochemical impedance spectroscopy(EIS) and potentiodynamic polarization curves. The experimental results show that Candida xyloterini inhibited the corrosion, while Acinetobacter lwoffi and Lactobacillus paracasei promoted the corrosion of 7B04 aluminum alloy.

关 键 词：舰载机 微生物腐蚀 分子生物学 电化学 铝合金 

分 类 号：V217.22[航空宇航科学与技术—航空宇航推进理论与工程] TB304[一般工业技术—材料科学与工程]