Microbiologically influenced corrosion in water recovery system of manned spacecrafts deserves attention. The effect of on the corrosion of 5A06 aluminium alloy in simulated condensate solutions of space station was investigated. The organic acids induced significant dissolution of aluminium alloy, electrochemical measurements results showed living cells could weakened the cathode reaction, and focused ion beam-scanning/transmission electron microscopy indicated that cell promoted the thinning of passive films. affected the corrosion of 5A06 AA through metabolic activities and extracellular polymeric substances, ultimately promoting the degradation of passive films of aluminium alloy.

中文翻译：

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空间站模拟冷凝液中蜡样芽孢杆菌诱导5A06铝合金钝化膜降解的研究

载人航天器水回收系统中微生物影响的腐蚀值得关注。研究了模拟空间站冷凝液中5A06铝合金腐蚀的影响。有机酸引起铝合金显着溶解，电化学测量结果显示活细胞削弱了阴极反应，聚焦离子束扫描/透射电子显微镜表明细胞促进了钝化膜的减薄。通过代谢活动和胞外聚合物影响5A06 AA的腐蚀，最终促进铝合金钝化膜的降解。