铝合金微生物腐蚀研究进展  

Research Progress on Microbial Corrosion of A luminum Alloys

作　　者：刘凤芹[1] Liu Fengqin(Department of Modern Science and Technology,Party School of C.P.C Baoji Municipal Committee)

机构地区：[1]中共宝鸡市委党校现代科技与管理教研室,陕西宝鸡721000

出　　处：《特种铸造及有色合金》2023年第9期1186-1193,共8页Special Casting & Nonferrous Alloys

摘　　要：结合近年来铝合金微生物腐蚀研究现状,腐蚀行为和机理及微生物腐蚀防护领域研究成果,归纳总结微生物中代表性细菌和霉菌等在多种铝合金上的附着繁殖行为,其生命活动引起或加剧材料的腐蚀过程,介绍了微生物通过生物膜屏蔽、分泌腐蚀抑制剂、代谢产物抑制等过程控制铝合金腐蚀速率。重点讨论了铝合金的微生物腐蚀机理,主要包括阴极去极化机制、氧浓差电池机制、微电池作用、形成腐蚀化合物、氯离子诱导及酸腐蚀以及微生物抑制铝合金腐蚀的机理。总结发现,铝合金的微生物腐蚀是多种腐蚀机制共同作用的结果。最后介绍了目前铝合金微生物腐蚀防护控制方法,展望了未来铝合金微生物腐蚀的研究重点,为控制和防护铝合金的微生物腐蚀提供参考。Based on the research status of microbial corrosion of aluminum alloys in recent years,corrosion behavior and mechanism and achievements in the field of microbial corrosion protection,the process of representative bacteria and molds in microorganisms was attached and propagated on a variety of aluminum alloys,and their life activities causing or aggravating the corrosion was reviewed.The corrosion rate of aluminum alloy is controlled by microorganisms shielding,secrete corrosion inhibitors and metabolite inhibition.The microbial corrosion mechanism of aluminum alloy was mainly summarized,including cathodic depolarization mechanism,oxygen concentration cell mechanism,micro cell effect,corrosion compound formation,chloride induction and acid corrosion,as well as the mechanism of microbial inhibition of aluminum alloy corrosion.In conclusion,microbial corrosion of aluminum alloys is synergy of multiple corrosion mechanisms.Finally,the current methods to prevent and control microbial corrosion of aluminum alloys were described,and the research emphasis in the future was prospected,providing theoretical guidance for the prevention and control of microbial corrosion of aluminum alloys.

关 键 词：微生物 铝合金 腐蚀机制 细菌 霉菌 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG113[金属学及工艺—金属材料] O353.11[金属学及工艺—金属学]